Develop Reference

.NET Delete in ListView isn't passing any values

For some reason, all my ListView functions work, except my delete button. I have debugged, and it points to the right method for deletion, but it's just passing all null values. I have no idea what the issue is, everything else seems to be working just fine. here is my listview code:
<asp:ListView ID="EntReqListView" runat="server" InsertItemPosition="LastItem" DataSourceID="EntranceReqODS" Visible="false">
<AlternatingItemTemplate>
<tr style="">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="ProgramIDLabel" runat="server" Text='<%# Bind("ProgramID") %>' />
</td>
<td>
<asp:Label ID="CourseIDLabel" runat="server" Text='<%# Bind("CourseID") %>' />
</td>
<td>
<asp:Label ID="CourseNameLabel" runat="server" Text='<%# Bind("CourseName") %>' />
</td>
<td>
<asp:Label ID="MarkLabel" runat="server" Text='<%# Bind("Mark") %>' />
</td>
</tr>
</AlternatingItemTemplate>
<EditItemTemplate>
<tr style="">
<td>
<asp:Button ID="UpdateButton" runat="server" CommandName="Update" Text="Update" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Cancel" />
</td>
<td>
<asp:Label ID="ProgramIDTextBox" runat="server" Text='<%# Bind("ProgramID") %>' />
</td>
<td>
<asp:Label ID="CourseIDTextBox" runat="server" Text='<%# Bind("CourseID") %>' />
</td>
<td>
<asp:Label ID="CourseNameTextBox" runat="server" Text='<%# Bind("CourseName") %>' />
</td>
<td>
<asp:TextBox ID="MarkTextBox" runat="server" Text='<%# Bind("Mark") %>' />
</td>
</tr>
</EditItemTemplate>
<EmptyDataTemplate>
<table runat="server" style="">
<tr>
<td>No data was returned.</td>
</tr>
</table>
</EmptyDataTemplate>
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert"/>
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" />
</td>
<td>
<asp:TextBox ID="ProgramIDTextBox" runat="server" value="<%# ProgramID.Text %>" Text='<%# Bind("ProgramID")%>' onkeydown="javascript:return false"/>
</td>
<td>
<asp:Label ID="CourseIDTextBox" runat="server" Text='<%# Bind("CourseID") %>' />
</td>
<td>
<asp:DropDownList ID="EntReqCourses" runat="server"
DataSourceID="CourseListODS"
DataTextField="SubjectName"
DataValueField="CourseID"
SelectedValue='<%# Bind("CourseID") %>' AppendDataBoundItems="True">
<asp:ListItem Text="--Select One--" Value="" />
</asp:DropDownList>
</td>
<td>
<asp:TextBox ID="MarkTextBox" runat="server" Text='<%# Bind("Mark") %>' />
</td>
</tr>
</InsertItemTemplate>
<ItemTemplate>
<tr style="">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="ProgramIDLabel" runat="server" Text='<%# Bind("ProgramID") %>' />
</td>
<td>
<asp:Label ID="CourseIDLabel" runat="server" Text='<%# Bind("CourseID") %>' />
</td>
<td>
<asp:Label ID="CourseNameLabel" runat="server" Text='<%# Bind("CourseName") %>' />
</td>
<td>
<asp:Label ID="MarkLabel" runat="server" Text='<%# Bind("Mark") %>' />
</td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table runat="server">
<tr runat="server">
<td runat="server">
<table id="itemPlaceholderContainer" runat="server" border="0" style="">
<tr runat="server" style="">
<th runat="server"></th>
<th runat="server">ProgramID</th>
<th runat="server">CourseID</th>
<th runat="server">CourseName</th>
<th runat="server">Mark</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
<tr runat="server">
<td runat="server" style="">
<asp:DataPager ID="DataPager1" runat="server">
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True" ShowLastPageButton="True" />
</Fields>
</asp:DataPager>
</td>
</tr>
</table>
</LayoutTemplate>
<SelectedItemTemplate>
<tr style="">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="ProgramIDLabel" runat="server" Text='<%# Bind("ProgramID") %>' />
</td>
<td>
<asp:Label ID="CourseIDLabel" runat="server" Text='<%# Bind("CourseID") %>' />
</td>
<td>
<asp:Label ID="CourseNameLabel" runat="server" Text='<%# Bind("CourseName") %>' />
</td>
<td>
<asp:Label ID="MarkLabel" runat="server" Text='<%# Bind("Mark") %>' />
</td>
</tr>
</SelectedItemTemplate>
</asp:ListView>
I set up all my CRUD methods through the wizard, here is the delete method it goes to:
[DataObjectMethod(DataObjectMethodType.Delete, false)]
public void EntReq_Delete(EntranceRequirementInfo item)
{
using (Pathway_Model context = new Pathway_Model())
{
EntranceRequirement existing = context.EntranceRequirements.Find(item.CourseID, item.ProgramID);
context.EntranceRequirements.Remove(existing);
context.SaveChanges();
}
}
My ODS:
<asp:ObjectDataSource ID="EntranceReqODS" runat="server" DataObjectTypeName="Pathway_System.Entities.DTOs.EntranceRequirementInfo" DeleteMethod="EntReq_Delete" InsertMethod="EntReq_Add" OldValuesParameterFormatString="original_{0}" SelectMethod="EntReqList_byID" TypeName="Pathway_System.BLL.PathwaysController" UpdateMethod="EntReq_Update">
<SelectParameters>
<asp:ControlParameter ControlID="CertificateList" Name="programID" PropertyName="SelectedValue" Type="Int32" DefaultValue="" />
</SelectParameters>
</asp:ObjectDataSource>

TextBox in the RadGrid control doesn't make partial postback and fills the other controls

I have a TextBox (named as txt_lect_in) in RadGrid and I handled the TextBox changed event so it fills other textboxes (gv_txt_name,gv_txt_mobile,gv_txt_address,gv_txt_email) in the same grid.
The problem is:
The TextBox (txt_lect_in) doesn't fills the other textboxes, I know the reason but I don't know how to fix it.
After I remove the RadAjaxManager, it fills the other textboxes in the grid but it does full post back, how to keep the ajax manager and fill the controls at the same time?
<telerik:radajaxmanager id="RadAjaxManager1" runat="server">
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="gv_about">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="gv_about" LoadingPanelID="RadAjaxLoadingPanel1">
</telerik:AjaxUpdatedControl>
<telerik:AjaxUpdatedControl ControlID="divMsgs"></telerik:AjaxUpdatedControl>
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:radajaxmanager>
<telerik:radajaxloadingpanel id="RadAjaxLoadingPanel1" runat="server">
</telerik:radajaxloadingpanel>
<telerik:radgrid id="gv_about" runat="server" cssclass="RadGrid" allowpaging="True"
pagesize="20" allowsorting="True" autogeneratecolumns="False" showstatusbar="True"
allowautomaticdeletes="True" allowautomaticinserts="True" allowautomaticupdates="True"
datasourceid="ObjectDataSource1" onitemdeleted="gv_about_ItemDeleted" oniteminserted="gv_about_ItemInserted"
onitemupdated="gv_about_ItemUpdated" onitemcommand="gv_about_ItemCommand" onprerender="gv_about_PreRender"
onitemcreated="gv_about_ItemCreated">
<MasterTableView CommandItemDisplay="Top" DataSourceID="ObjectDataSource1">
<commanditemsettings addnewrecordtext="اضافة" showrefreshbutton="False" />
<Columns>
<telerik:GridEditCommandColumn>
</telerik:GridEditCommandColumn>
<telerik:GridBoundColumn UniqueName="emp_num" HeaderText="رقم المحاضر" DataField="emp_num">
<HeaderStyle ForeColor="Silver" Width="25px"></HeaderStyle>
<ItemStyle ForeColor="Gray"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn UniqueName="name" HeaderText="الاسم" DataField="name">
<HeaderStyle Width="220px"></HeaderStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn UniqueName="degree_name" HeaderText="الدرجة العلمية" DataField="degree_name">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn UniqueName="college" HeaderText="الكلية والجامعة" DataField="college">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn UniqueName="type" HeaderText="نوع المحاضر" DataField="type">
</telerik:GridBoundColumn>
<telerik:GridButtonColumn CommandName="Delete" Text="حذف" UniqueName="column">
</telerik:GridButtonColumn>
</Columns>
<EditFormSettings EditFormType="Template">
<EditColumn UniqueName="EditCommandColumn1" FilterControlAltText="Filter EditCommandColumn1 column"></EditColumn>
<FormTemplate>
<table id="Table2" cellspacing="2" cellpadding="1" width="100%" border="0" rules="none"
style="border-collapse: collapse;" >
<tr class="EditFormHeader">
<td colspan="2" style="font-size: small">
<b>استمارة تعارف</b>
</td>
</tr>
<tr>
<td>
<table id="Table3" cellspacing="1" cellpadding="1" width="250" border="0" class="module">
<tr>
<td>
نوع المحاضر:
</td>
<td>
<div id="div_lect_type">
<asp:RadioButtonList ID="rbt_lect_type" runat="server" AppendDataBoundItems="true"
AutoPostBack="true" CausesValidation="false" RepeatDirection="Horizontal" OnSelectedIndexChanged="rbt_lect_type_SelectedIndexChanged">
<asp:ListItem Value="1" Text="معين" Selected="True"></asp:ListItem>
<asp:ListItem Value="2" Text="منتدب خارجي"></asp:ListItem>
<asp:ListItem Value="3" Text="جديد"></asp:ListItem>
</asp:RadioButtonList>
</div>
<div id="div_lect">
<asp:TextBox ID="txt_lect_in" runat="server" AutoPostBack="True" OnTextChanged="txt_lect_in_TextChanged"></asp:TextBox>
<asp:AutoCompleteExtender ID="txt_lect_in_AutoCompleteExtender" runat="server" DelimiterCharacters=""
Enabled="True" MinimumPrefixLength="4" ServiceMethod="Get_Emp_AutoComplete" ServicePath="~/LectIn.asmx"
TargetControlID="txt_lect_in" BehaviorID="ACE_txt_lect_in" CompletionListCssClass="autocomplete_completionListElement"
CompletionListHighlightedItemCssClass="autocomplete_highlightedListItem" CompletionListItemCssClass="autocomplete_listItem"
EnableCaching="False">
</asp:AutoCompleteExtender>
</div>
</td>
</tr>
<tr>
<td>
الاسم:
</td>
<td>
<asp:TextBox ID="gv_txt_name" runat="server" Text='<%# Eval("name") %>' TabIndex="1">
</asp:TextBox>
</td>
</tr>
<tr>
<td>
الموبايل:
</td>
<td>
<telerik:RadMaskedTextBox ID="gv_txt_mobile" runat="server" SelectionOnFocus="SelectAll"
Text='<%# Bind("tel_num") %>' PromptChar="_" Width="300px" Mask="(###)_########"
TabIndex="2">
</telerik:RadMaskedTextBox>
</td>
</tr>
<tr>
<td>
عنوان المراسلات:
</td>
<td>
<asp:TextBox ID="gv_txt_address" runat="server" Text='<%# Eval("address") %>' TabIndex="3">
</asp:TextBox>
</td>
</tr>
<tr>
<td>
البريد الإلكتروني:
</td>
<td>
<asp:TextBox ID="gv_txt_email" runat="server" Text='<%# Eval("email") %>' TabIndex="4">
</asp:TextBox>
</td>
</tr>
<tr>
<td>
الدرجة العلمية:
</td>
<td>
<asp:TextBox ID="gv_txt_degree" runat="server" Text='<%# Eval("degree_name") %>' TabIndex="5">
</asp:TextBox>
</td>
</tr>
<tr>
<td>
الكلية والجامعة:
</td>
<td>
<%-- <asp:TextBox ID="gv_txt_college" runat="server" Text='<%# Eval("college") %>' TabIndex="6">
</asp:TextBox>--%>
</td>
</tr>
</table>
</td>
<td>
</td>
</tr>
<tr>
<td align="right" colspan="2">
<asp:Button ID="btnUpdate" Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>'
runat="server" CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>'>
</asp:Button>
<asp:Button ID="btnCancel" Text="Cancel" runat="server" CausesValidation="False"
CommandName="Cancel"></asp:Button>
</td>
</tr>
</table>
</FormTemplate>
</EditFormSettings>
</MasterTableView>
<ClientSettings>
<ClientEvents OnRowDblClick="RowDblClick"></ClientEvents>
</ClientSettings>
</telerik:radgrid>

ASP.net listview dropdown item getting the value from another table

I am trying to build an admin page in order to let the user create edit update the records of the specific table. "District" table has the following properties: DistrictID, DistrictName, Description, DistrictImage, CityFK. Since CityFK is just numbers which represents CityID of the table "City" and does not mean anything to the user I have used a dropdown menu instead and it displays all city names as "DataTextField" and CityIDs as "DataValueField" from the table "City". But my aim is to insert that "DataValueField" into the District table as CityFK. But whenever I enter a new District record and choose a City from the dropdown and press "Insert" button of the listview, CityFK of that regarding record is "0".
I paste the whole listview but if you look at the dropdownlist at the InsertItemTemplate or EditItemTemplate you will what I mean;
<asp:ListView ID="DistrictList" runat="server" DataKeyNames="DistrictID" InsertItemPosition="LastItem" DataSourceID="DistrictEntityDataSource" >
<AlternatingItemTemplate>
<tr style="background-color:#FFF8DC;">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="DistrictIDLabel" runat="server" Text='<%# Eval("DistrictID") %>' />
</td>
<td>
<asp:Label ID="DistrictNameLabel" runat="server" Text='<%# Eval("DistrictName") %>' />
</td>
<td>
<asp:Label ID="DescriptionLabel" runat="server" Text='<%# Eval("Description") %>' />
</td>
<td>
<asp:Image ID="DistrictImageLabel" runat="server" Height="100px" ImageUrl='<%# "~/Handlers/ImageHandler.ashx?ID="+Eval("DistrictID")+"&Entity=District"%>'/>
</td>
<td>
<asp:Label ID="CityFKLabel" runat="server" Text='<%# Eval("CityFK") %>' />
</td>
</tr>
</AlternatingItemTemplate>
<EditItemTemplate>
<tr style="background-color:#008A8C;color: #FFFFFF;">
<td>
<asp:Button ID="UpdateButton" runat="server" CommandName="Update" Text="Update" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Cancel" />
</td>
<td>
<asp:Label ID="DistrictIDLabel1" runat="server" Text='<%# Eval("DistrictID") %>' />
</td>
<td>
<asp:TextBox ID="DistrictNameTextBox" runat="server" Text='<%# Bind("DistrictName") %>' />
</td>
<td>
<asp:TextBox ID="DescriptionTextBox" runat="server" Text='<%# Bind("Description") %>' />
</td>
<td>
<asp:FileUpload ID="FileUploadDistrict2" runat="server" />
</td>
<td>
<asp:DropDownList ID="CityFKDropDownList" runat="server" AutoPostBack="true" DataSourceID="ddlCityFK_DataSource" ViewStateMode="Enabled"
DataTextField="CityName" DataValueField="CityID"
AppendDataBoundItems="true">
<asp:ListItem Text="-Stadt Wählen-" Value="0" ></asp:ListItem>
</asp:DropDownList>
<asp:EntityDataSource ID="ddlCityFK_DataSource" runat="server"
ConnectionString="name=MedicalEntities" DefaultContainerName="MedicalEntities"
EntitySetName="Cities" >
</asp:EntityDataSource>
</td>
</tr>
</EditItemTemplate>
<EmptyDataTemplate>
<table runat="server" style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;">
<tr>
<td>No data was returned.</td>
</tr>
</table>
</EmptyDataTemplate>
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" />
</td>
<td>
<asp:TextBox ID="DistrictIDTextBox" runat="server" Text='<%# Bind("DistrictID") %>' />
</td>
<td>
<asp:TextBox ID="DistrictNameTextBox" runat="server" Text='<%# Bind("DistrictName") %>' />
</td>
<td>
<asp:TextBox ID="DescriptionTextBox" runat="server" Text='<%# Bind("Description") %>' />
</td>
<td>
<asp:FileUpload ID="FileUploadDistrict" runat="server"/>
</td>
<td>
<asp:DropDownList ID="CityFKDropDownList" runat="server" AutoPostBack="true" DataSourceID="ddlCityFK_DataSource" ViewStateMode="Enabled"
DataTextField="CityName" DataValueField="CityID"
AppendDataBoundItems="true">
<asp:ListItem Text="-Stadt Wählen-" Value="0" ></asp:ListItem>
</asp:DropDownList>
<asp:EntityDataSource ID="ddlCityFK_DataSource" runat="server"
ConnectionString="name=MedicalEntities" DefaultContainerName="MedicalEntities"
EntitySetName="Cities">
</asp:EntityDataSource>
</td>
</tr>
</InsertItemTemplate>
<ItemTemplate>
<tr style="background-color:#DCDCDC;color: #000000;">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="DistrictIDLabel" runat="server" Text='<%# Eval("DistrictID") %>' />
</td>
<td>
<asp:Label ID="DistrictNameLabel" runat="server" Text='<%# Eval("DistrictName") %>' />
</td>
<td>
<asp:Label ID="DescriptionLabel" runat="server" Text='<%# Eval("Description") %>' />
</td>
<td>
<asp:Image ID="DistrictImageLabel" runat="server" Height="100px" ImageUrl='<%# "~/Handlers/ImageHandler.ashx?ID="+Eval("DistrictID")+"&Entity=District"%>'/>
</td>
<td>
<asp:Label ID="CityFKLabel" runat="server" Text='<%# Eval("CityFK") %>' />
</td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table runat="server">
<tr runat="server">
<td runat="server">
<table id="itemPlaceholderContainer" runat="server" border="1" style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;font-family: Verdana, Arial, Helvetica, sans-serif;">
<tr runat="server" style="background-color:#DCDCDC;color: #000000;">
<th runat="server"></th>
<th runat="server">DistrictID</th>
<th runat="server">DistrictName</th>
<th runat="server">Description</th>
<th runat="server">DistrictImage</th>
<th runat="server">CityFK</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
<tr runat="server">
<td runat="server" style="text-align: center;background-color: #CCCCCC;font-family: Verdana, Arial, Helvetica, sans-serif;color: #000000;">
<asp:DataPager ID="DataPager1" runat="server">
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True" ShowLastPageButton="True" />
</Fields>
</asp:DataPager>
</td>
</tr>
</table>
</LayoutTemplate>
<SelectedItemTemplate>
<tr style="background-color:#008A8C;font-weight: bold;color: #FFFFFF;">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="DistrictIDLabel" runat="server" Text='<%# Eval("DistrictID") %>' />
</td>
<td>
<asp:Label ID="DistrictNameLabel" runat="server" Text='<%# Eval("DistrictName") %>' />
</td>
<td>
<asp:Label ID="DescriptionLabel" runat="server" Text='<%# Eval("Description") %>' />
</td>
<td>
<asp:Image ID="DistrictImageLabel" runat="server" Height="100px" ImageUrl='<%# "~/Handlers/ImageHandler.ashx?ID="+Eval("DistrictID")+"&Entity=District"%>'/>
</td>
<td>
<asp:Label ID="CityFKLabel" runat="server" Text='<%# Eval("CityFK") %>' />
</td>
</tr>
</SelectedItemTemplate>
</asp:ListView>
<asp:EntityDataSource ID="DistrictEntityDataSource" runat="server" ConnectionString="name=MedicalEntities"
DefaultContainerName="MedicalEntities" EnableDelete="True" EnableFlattening="False" EnableInsert="True"
EnableUpdate="True" EntitySetName="Districts" Include="City" EntityTypeFilter="District">
</asp:EntityDataSource>
So I am trying to bind that dropdownlist values to the CityFK during Insert and Edit operations.

I figured it out. As workaround I added one textbox at the same column with the dropdownlist and set its visible attribute to false;
<asp:TextBox ID="CityFKTextBoxInsert" runat="server" Visible="false" Text='<%# Bind("CityFK") %>' />
In case you also encounter such a problem I add the code-behind and asp side here;
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" />
</td>
<td>
<asp:TextBox ID="DistrictIDTextBox" runat="server" Text='<%# Bind("DistrictID") %>' />
</td>
<td>
<asp:TextBox ID="DistrictNameTextBox" runat="server" Text='<%# Bind("DistrictName") %>' />
</td>
<td>
<asp:TextBox ID="DescriptionTextBox" runat="server" Text='<%# Bind("Description") %>' />
</td>
<td>
<asp:FileUpload ID="FileUploadDistrictInsert" runat="server" />
</td>
<td>
<asp:TextBox ID="CityFKTextBoxInsert" runat="server" Visible="false" Text='<%# Bind("CityFK") %>' />
<asp:DropDownList ID="CityFKDropDownListInsert" runat="server" AutoPostBack="true" DataSourceID="ddlCityFK_DataSource2" ViewStateMode="Enabled"
DataTextField="CityName" DataValueField="CityID" OnSelectedIndexChanged="CityFKDropDownListInsert_SelectedIndexChanged"
AppendDataBoundItems="true">
<asp:ListItem Text="-Stadt Wählen-" Value="0" ></asp:ListItem>
</asp:DropDownList>
<asp:EntityDataSource ID="ddlCityFK_DataSource2" runat="server"
ConnectionString="name=MedicalEntities" DefaultContainerName="MedicalEntities"
EntitySetName="Cities" >
</asp:EntityDataSource>
</td>
</tr>
</InsertItemTemplate>
Then I have added a "OnSelectedIndexChanged" event to the dropdown and assign the selected value to that textbox;
protected void CityFKDropDownListInsert_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList DropdownDistrict = (DropDownList)DistrictList.InsertItem.FindControl("CityFKDropDownListInsert");
TextBox DistrictTextBox = (TextBox)DistrictList.InsertItem.FindControl("CityFKTextBoxInsert");
DistrictTextBox.Text = DropdownDistrict.SelectedValue;
}
If you want to apply that solution also to EditItemTemplate only thing you have to do changing that line;
DropDownList DropdownDistrict = (DropDownList)DistrictList.InsertItem.FindControl("CityFKDropDownListInsert");
to this;
DropDownList DropdownDistrict = (DropDownList)DistrictList.EditItem.FindControl("CityFKDropDownListInsert");

place the insert part at above the table in listviews

actually i have below listview at my user control page:
and i want to replace the insert part to above the table as below:
and my listview code is as below:
<asp:ListView ID="lv_Uc_Module" runat="server"
onitemediting="lv_Uc_Module_ItemEditing"
onitemupdating="lv_Uc_Module_ItemUpdating"
onitemcanceling="lv_Uc_Module_ItemCanceling"
onitemdeleting="lv_Uc_Module_ItemDeleting"
OnItemDataBound="lv_Uc_Module_ItemDataBound"
InsertItemPosition="LastItem"
OnSorting="lv_Uc_Module_Sorting"
oniteminserting="lv_Uc_Module_ItemInserting"
DataKeyNames="EmpID">
<LayoutTemplate>
<table id="table_Lv_Layout" runat="server">
<tr id="tr_Table_Layout" runat="server">
<td id="td_Table_Layout" runat="server">
<table ID="itemPlaceholderContainer" runat="server" class="th_ItemTemplate">
<tr id="tr_Table_IphContainer" runat="server" style="">
<th id="th1_Table_IphContainer" runat="server">
<asp:Label ID="lb1_Table_IphContainer" runat="server" Text=""></asp:Label>
<asp:ImageButton ID="imb1_Table_IphContainer" CommandArgument="EmpID" CommandName="Sort" ImageUrl="~/Images/asc.png" runat="server" />
</th>
<th id="th2_Table_IphContainer" runat="server">
<asp:Label ID="lb2_Table_IphContainer" runat="server" Text=""></asp:Label>
<asp:ImageButton ID="imb2_Table_IphContainer" CommandArgument="EmpName" CommandName="Sort" ImageUrl="~/Images/asc.png" runat="server" />
</th>
<th id="th3_Table_IphContainer" runat="server">
<asp:Label ID="lb3_Table_IphContainer" runat="server" Text=""></asp:Label>
</th>
<th id="th4_Table_IphContainer" runat="server">
<asp:Label ID="lb4_Table_IphContainer" runat="server" Text=""></asp:Label>
</th>
<th id="th5_Table_IphContainer" runat="server">
<asp:Label ID="lb5_Table_IphContainer" runat="server" Text=""></asp:Label>
</th>
<th id="th6_Table_IphContainer" runat="server">
</th>
</tr>
<tr ID="itemPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
<tr id="tr_Validate_Table_Layout" runat="server">
<td id="td_Validate_Table_Layout" runat="server" style="text-align: center;background-color: #CCCCCC;">
<asp:ValidationSummary ID="ValidationSummary1" runat="server" HeaderText="You received the following errors:" ShowMessageBox="true" ShowSummary="false" ValidationGroup="VGEditTmp" />
<asp:ValidationSummary ID="ValidationSummary2" runat="server" HeaderText="You received the following errors:" ShowMessageBox="true" ShowSummary="false" ValidationGroup="VGInsertTmp" />
</td>
</tr>
</table>
<br />
<asp:DataPager ID="lv_DataPager" runat="server" PagedControlID="lv_Uc_Module" PageSize="5" OnPreRender="lv_DataPager_PreRender">
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="true" ShowLastPageButton="true" />
<asp:TemplatePagerField>
<PagerTemplate>
<span style="color:Maroon;">Records:
<%# Container.StartRowIndex >= 0 ? (Container.StartRowIndex + 1) : 0 %>
-
<%# (Container.StartRowIndex + Container.PageSize) > Container.TotalRowCount ? Container.TotalRowCount : (Container.StartRowIndex + Container.PageSize)%>
of
<%# Container.TotalRowCount %>
<span style="color:Red;">
OR
</span>
<span style="color: Blue;">
Page
<%# Container.TotalRowCount>0 ? (Container.StartRowIndex / Container.PageSize) + 1 : 0 %>
of
<%# Math.Ceiling((double)Container.TotalRowCount / Container.PageSize) %>
</span>
</span>
</PagerTemplate>
</asp:TemplatePagerField>
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
<tr class="tr_ItemTemplate">
<td>
<asp:Label ID="lb_ItemTemp1" runat="server" Text='' />
</td>
<td>
<asp:Label ID="lb_ItemTemp2" runat="server" Text='' />
</td>
<td>
<asp:Label ID="lb_ItemTemp3" runat="server" Text='' />
</td>
<td>
<asp:Label ID="lb_ItemTemp4" runat="server" Text='' />
</td>
<td>
<asp:Label ID="lb_ItemTemp5" runat="server" Text='' />
</td>
<td>
<asp:Button ID="btn_Edit" runat="server" CommandName="Edit" Text="" CssClass="btn_Edit" CausesValidation="True" />
<asp:Button ID="btn_Delete" runat="server" CommandName="Delete" Text="" CssClass="btn_Delete" CausesValidation="false" OnClientClick="return confirm('Are you sure you want to delete this item?');" />
</td>
</tr>
</ItemTemplate>
<EditItemTemplate>
<tr style="background-color:#008A8C;color: #FFFFFF;">
<td>
<asp:Label ID="lb_ItemTemp1" runat="server" Text='' />
</td>
<td>
<asp:TextBox ID="td_EditTemp1" runat="server" Text='' ValidationGroup="VGEditTmp" />
<asp:RequiredFieldValidator runat="server" ID="RequiredName" ControlToValidate="td_EditTemp1" ErrorMessage="Name is required" ValidationGroup="VGEditTmp" Display="None" ></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="regName" runat="server" ControlToValidate="td_EditTemp1" ValidationExpression="^[a-zA-Z'.\s]{1,50}" ErrorMessage="Enter a valid Name" ValidationGroup="VGEditTmp" Display="None"></asp:RegularExpressionValidator>
</td>
<td>
<asp:TextBox ID="td_EditTemp2" runat="server" Text='' />
</td>
<td>
<asp:TextBox ID="td_EditTemp3" runat="server" Text='' ValidationGroup="VGEditTmp" />
<asp:RangeValidator ID="ValidateAge" runat="server" ControlToValidate="td_EditTemp3" MinimumValue="18" MaximumValue="50" Type="Integer" ErrorMessage="Age should be within the valid interval(18-50)!" ValidationGroup="VGEditTmp" SetFocusOnError="true" Display="None"></asp:RangeValidator>
</td>
<td>
<asp:TextBox ID="td_EditTemp4" runat="server" Text='' />
</td>
<td>
<asp:Button ID="btn_Update" runat="server" CommandName="Update" Text="Update" ValidationGroup="VGEditTmp" />
<asp:Button ID="btn_Cancel" runat="server" CommandName="Cancel" Text="Cancel" CausesValidation="false" />
</td>
</tr>
</EditItemTemplate>
<InsertItemTemplate>
<tr style="background-color:#008A8C;font-weight: bold;color: #FFFFFF;">
<td>
</td>
<td>
<asp:TextBox ID="td_EditTemp1" runat="server" Text='' ValidationGroup="VGInsertTmp" />
<asp:RequiredFieldValidator runat="server" ID="RequiredName" ControlToValidate="td_EditTemp1" ErrorMessage="Name is required" ValidationGroup="VGInsertTmp" Display="None"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="regName" runat="server" ControlToValidate="td_EditTemp1" ValidationExpression="^[a-zA-Z'.\s]{1,50}" ErrorMessage="Enter a valid Name" ValidationGroup="VGInsertTmp" Display="None"></asp:RegularExpressionValidator>
</td>
<td>
<asp:TextBox ID="td_EditTemp2" runat="server" Text='' />
</td>
<td>
<asp:TextBox ID="td_EditTemp3" runat="server" Text='' ValidationGroup="VGInsertTmp" />
<asp:RangeValidator ID="ValidateAge" runat="server" ControlToValidate="td_EditTemp3" MinimumValue="18" MaximumValue="50" Type="Integer" ErrorMessage="Age should be within the valid interval(18-50)!" ValidationGroup="VGInsertTmp" SetFocusOnError="true" Display="None"></asp:RangeValidator>
</td>
<td>
<asp:TextBox ID="td_EditTemp4" runat="server" Text='' />
</td>
<td>
<asp:Button ID="btn_Insert" runat="server" CommandName="Insert" Text="Insert" ValidationGroup="VGInsertTmp" />
<asp:Button ID="btn_Cancel" runat="server" CommandName="Cancel" Text="Clear" CausesValidation="false" />
</td>
</tr>
</InsertItemTemplate>
</asp:ListView>
could you please guide me how to overcome this problem. i'm using asp.net and c#.
Appreciate your consideration.

I think you need to change your GridView's InsertItemPosition property from InsertItemPosition="LastItem"
to
InsertItemPosition="FirstItem"
in your declaration.

Ajax TabPanels trigger validation for other tabs in ASP.Net 4.0

I have Ajax TabPanel with Tab "Employee List" "Add Employee" "Edit Employee"
On Employee List Tab i use gridview to display list of employee along with link Button to view details of employee on same tab and "Del" button to delete employee. It worked fine but when i added Controls to Second tab "Add Employee" along with validation controls. After this gridview in Tab one is not working as it trigger validation on second Tab.
How can i stop this validation which is triggered by controls on Tab 1
Below is the code
<asp:TabContainer ID="TabContainer1" runat="server" Height="320px" Width="100%"
ActiveTabIndex="0" >
<asp:TabPanel ID="atpEmployeeList" runat="server" >
<HeaderTemplate>Employee List</HeaderTemplate>
<ContentTemplate>
<table border="0" width="100%" cellpadding="0" cellspacing="0">
<tr>
<td class="style1" align="left" valign="top">
<b>Employee List</b>
<asp:GridView ID="gvEmployeeList" runat="server" AutoGenerateColumns="False"
DataKeyNames="eCode" BackColor="White" BorderColor="#336666"
BorderStyle="None" BorderWidth="2px" CellPadding="4"
GridLines="Horizontal" onrowcommand="gvEmployeeList_RowCommand"
onrowdatabound="gvEmployeeList_RowDataBound" >
<Columns>
<asp:BoundField DataField="eSno" HeaderText="ID" InsertVisible="False"
ReadOnly="True" SortExpression="eSno" />
<asp:BoundField DataField="eFirstName" HeaderText="First Name"
SortExpression="eFirstName" />
<asp:BoundField DataField="eLastName" HeaderText="Last Name"
SortExpression="eLastName" />
<asp:BoundField DataField="eDepartment" HeaderText="Department"
SortExpression="eDepartment" />
<asp:BoundField DataField="eSalary" HeaderText="Salary"
SortExpression="eSalary" />
<asp:TemplateField HeaderText="Details">
<ItemTemplate>
<asp:LinkButton ID="lnkBtnEmpDetails" CommandArgument='<%# Eval("eSno") %>' CommandName="ViewDetails" runat="server">
View</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:LinkButton ID="lnkBtnEmpDelete" CommandArgument='<%# Eval("eSno") %>' CommandName="Delete" runat="server">
Del</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="White" ForeColor="#333333" />
<HeaderStyle BackColor="#336699" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#336699" ForeColor="White" HorizontalAlign="Right" />
<RowStyle BackColor="White" ForeColor="#333333" />
<SelectedRowStyle BackColor="#339966" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F7F7F7" />
<SortedAscendingHeaderStyle BackColor="#487575" />
<SortedDescendingCellStyle BackColor="#E5E5E5" />
<SortedDescendingHeaderStyle BackColor="#275353" />
</asp:GridView>
</td>
<td width="250px" align="left" valign="top">
<b>Employee Details</b>
<br />
<table width="280px" align="left" cellpadding="3" cellspacing="0" >
<tr>
<td class="style8" bgcolor="#336699">
Code</td>
<td>
<asp:Label ID="lblEmpCode" runat="server" ></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Fisrt Name</td>
<td>
<asp:Label ID="lblFirstName" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style5" bgcolor="#336699">
Last Name</td>
<td class="style6">
<asp:Label ID="lblLastName" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Designation</td>
<td>
<asp:Label ID="lblDesignation" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Department</td>
<td>
<asp:Label ID="lblDepartment" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Salary</td>
<td>
<asp:Label ID="lblSalary" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Join Date</td>
<td>
<asp:Label ID="lblJoinDate" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Phone</td>
<td>
<asp:Label ID="lblPhone" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
Address</td>
<td>
<asp:Label ID="lblAddress" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style8" bgcolor="#336699">
City</td>
<td>
<asp:Label ID="lblCity" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="style4">
</td>
<td>
</td>
</tr>
</table>
</td>
</tr>
</table>
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="atpAddEmployee" runat="server" >
<HeaderTemplate>Add Employee</HeaderTemplate>
<ContentTemplate>
<div><b>Enter Details of New Employee</b></div>
<table border="0px"><tr>
<td width="400px">
<div class="spacer"></div>
<div class="row">
<asp:Label ID="lblAEmpCode" CssClass="txtLabel" runat="server" Text="Code :"></asp:Label>
<asp:TextBox ID="txtACode" runat="server" CssClass="txt4Digit"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvCode" runat="server" ErrorMessage="*"
ControlToValidate="txtACode"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblAFN" CssClass="txtLabel" runat="server" Text="First Name :"></asp:Label>
<asp:TextBox ID="txtAFN" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"
ControlToValidate="txtAFN"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblALN" CssClass="txtLabel" runat="server" Text="Last Name :"></asp:Label>
<asp:TextBox ID="txtALN" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="*"
ControlToValidate="txtALN"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblADesignation" CssClass="txtLabel" runat="server" Text="Designation :"></asp:Label>
<asp:TextBox ID="txtADesignation" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="*"
ControlToValidate="txtADesignation"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblADepartment" CssClass="txtLabel" runat="server" Text="Department :"></asp:Label>
<asp:TextBox ID="txtADepartment" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ErrorMessage="*"
ControlToValidate="txtADepartment"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblASalary" CssClass="txtLabel" runat="server" Text="Salary :"></asp:Label>
<asp:TextBox ID="txtASalary" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ErrorMessage="*"
ControlToValidate="txtASalary"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblAJoinDate" CssClass="txtLabel" runat="server" Text="Join Date :"></asp:Label>
<asp:TextBox ID="txtAJoinDate" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ErrorMessage="*"
ControlToValidate="txtAJoinDate"></asp:RequiredFieldValidator>
</div>
</td>
<td width="400px">
<div class="spacer"></div>
<div class="row">
<asp:Label ID="lblAAddress" CssClass="txtLabel" runat="server" Text="Address :"></asp:Label>
<asp:TextBox ID="txtAAddress" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ErrorMessage="*"
ControlToValidate="txtAAddress"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblACity" CssClass="txtLabel" runat="server" Text="City :"></asp:Label>
<asp:TextBox ID="txtACity" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator8" runat="server" ErrorMessage="*"
ControlToValidate="txtACity"></asp:RequiredFieldValidator>
</div>
<div class="row">
<asp:Label ID="lblACountry" CssClass="txtLabel" runat="server" Text="Country :"></asp:Label>
<asp:UpdatePanel ID="updatepanel1" runat="server">
<ContentTemplate>
<asp:DropDownList ID="ddCountry" runat="server" CssClass="ddGeneral" DataTextField="Country"
DataValueField="CountryId" OnSelectedIndexChanged="ddCountry_SelectedIndexChanged"
AutoPostBack="true" AppendDataBoundItems="true" >
<asp:ListItem Value="0">Select Country</asp:ListItem>
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
</div>
<div class="row">
<asp:Label ID="lblAState" CssClass="txtLabel" runat="server" Text="State :"></asp:Label>
<asp:UpdatePanel ID="updatePnlState" runat="server">
<ContentTemplate>
<asp:DropDownList ID="ddState" runat="server" CssClass="ddGeneral" DataTextField="Region" DataValueField="RegionId" AppendDataBoundItems="true">
<asp:ListItem Value="0">Select State</asp:ListItem>
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="updProgLoading" runat="server" >
<ProgressTemplate>
<img src="images/ajax-loader-small.gif" align="left" alt="Loading..." vspace="0" />
</ProgressTemplate>
</asp:UpdateProgress>
</div>
<div class="row">
<asp:Label ID="lblALL" CssClass="txtLabel" runat="server" Text="Landline :"></asp:Label>
<asp:TextBox ID="txtALL" runat="server" CssClass="txtbox"></asp:TextBox>
</div>
<div class="row">
<asp:Label ID="lblAMobile" CssClass="txtLabel" runat="server" Text="Mobile :"></asp:Label>
<asp:TextBox ID="txtAMobile" runat="server" CssClass="txtbox"></asp:TextBox>
</div>
<div class="row">
<asp:Label ID="lblAEmail" CssClass="txtLabel" runat="server" Text="Email :"></asp:Label>
<asp:TextBox ID="txtAEmail" runat="server" CssClass="txtbox"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator13" runat="server" ErrorMessage="*"
ControlToValidate="txtAEmail"></asp:RequiredFieldValidator>
</div>
</td>
</tr>
<tr><td colspan="2" align="center" height="40px">
<asp:Button ID="btnAddEmployee" runat="server" Text="Add Employee"
CssClass="btn" onclick="btnAddEmployee_Click" /> <input id="Reset1" type="reset" class="btn" value="Reset" />
</td></tr>
</table>
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="atpEditEmployee" runat="server" >
<HeaderTemplate>Edit Employee</HeaderTemplate>
<ContentTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
<input id="Button2" type="button" value="Next" onclick="MoveTab(1)" />
</ContentTemplate>
</asp:TabPanel>
</asp:TabContainer>

You should look at utilising the ValidationGroup attribute for validators. For example for all the validators in the atpAddEmployee tab you would set the attribute like so ValidationGroup="atpAddEmployee" or any other name that you think appropriate.
I've taken one of the validators from the atpAddEmployee tab and added the attribute as described above.
<asp:RequiredFieldValidator ID="rfvCode" runat="server" ErrorMessage="*" ControlToValidate="txtACode" ValidationGroup="atpAddEmployee"></asp:RequiredFieldValidator>
For that particular tab you would also need to add the ValidationGroup attribute to the button that should trigger the validation, see below.
<asp:Button ID="btnAddEmployee" runat="server" Text="Add Employee" CssClass="btn" onclick="btnAddEmployee_Click" ValidationGroup="atpAddEmployee" />
Some further reading, MSDN and W3Schools.