how to get data using OnRowCommand event in c# ASP.NET - c#

I can not fetch data while using OnRowCommand event of GridView using C# ASP.NET. I am using a linkButton inside a gridview. I am explaining my code below.
faq.aspx.cs:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
//int faqID = int.Parse(e.CommandArgument.ToString());
switch (e.CommandName)
{
case "DoEdit":
{
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = (GridViewRow)((LinkButton)e.CommandSource).NamingContainer;
int RowIndex = row.RowIndex;
TextBox1.Text = GridView1.Rows[RowIndex].Cells[1].Text;
TextBox2.Text = GridView1.Rows[RowIndex].Cells[2].Text;
HiddenField1.Value = GridView1.Rows[RowIndex].Cells[0].Text;
Button1.Text = "Update";
break;
}
case "DoDelete":
{
faqBL objFaqBl = new faqBL();
int index = Convert.ToInt32(e.CommandArgument);
int faqID =Convert.ToInt16( GridView1.Rows[index].Cells[0].Text);
objFaqBl.deleteFaqData(faqID);
break;
}
}
}
I am passing OnRowCommand from GridView like below.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" Width="100%" CssClass="table table-striped table-bordered margin-top-zero" OnRowCommand="GridView1_RowCommand">
<Columns>
<asp:TemplateField HeaderText="Sl No">
<ItemTemplate>
<asp:Label ID="faqid" runat="server" Text='<%#Eval("FAQ_ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Question">
<ItemTemplate>
<asp:Label ID="question" runat="server" Text='<%#Eval("Question") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Answer">
<ItemTemplate>
<asp:Label ID="answer" runat="server" Text='<%#Eval("Answer") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Image">
<ItemTemplate>
<asp:Image ID="Image1" runat="server" border="0" name="bannerimage" style="width:70px; height:70px;" ImageUrl='<%# "/Upload/" + Convert.ToString(Eval("Image")) %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<!--
<a href="" data-toggle="tooltip" title="" class="btn btn-xs btn-success" data-original-title="Edit" id="editbtn">
<i class="fa fa-edit"></i>
</a>
<a href=" " data-toggle="tooltip" title="" class="btn btn-xs btn-danger" data-original-title="Delete">
<i class="fa fa-times"></i>
</a>
-->
<asp:LinkButton ID="HyperLink1" runat="server" data-toggle="tooltip" title="" class="btn btn-xs btn-success" data-original-title="Edit" CommandName="DoEdit" CommandArgument='<%# Eval("FAQ_ID") %>'>
<i class="fa fa-edit"></i>
</asp:LinkButton>
<asp:LinkButton ID="HyperLink2" runat="server" data-toggle="tooltip" title="" class="btn btn-xs btn-danger" data-original-title="Delete" CommandName="DoDelete" CommandArgument='<%# Eval("FAQ_ID") %>'>
<i class="fa fa-times"></i>
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Please help me to resolve this issue.

Related

DropDownList inside GridView inside Repeater Control not working properly

I'm using Repeater control to generate tables on my dashboard. In the repeater, is a gridview to display item details. In the first column og the gridview is a dropdownlist to select an item and on selected index of that item, I'm fetching item details and the billing process continues for each table. Now the problem is that I'm only able to get the item details in the first repeater. Nothing happens when I select an item in another table or repeater. kindly help me with this issue.
Here is my ASPX markup:
<div class="row">
<asp:Repeater ID="rptrTables" runat="server" OnItemDataBound="rptrTables_ItemDataBound">
<ItemTemplate>
<div class="col-md-6">
<div class="card card-info">
<div class="card-header with-border">
<h3 class="card-title"><asp:Label ID="lblTableNumber" runat="server" Text='<%# Eval("TableName") %>'></asp:Label></h3>
<div class="card-tools">
<button type="button" class="btn btn-tool" data-widget="collapse"><i class="fa fa-minus"></i></button>
</div>
</div>
<div class="card-body">
<div class="row">
<div class="col-md-12">
<div class="form-group">
<asp:GridView ID="grdOrder" runat="server" AutoGenerateColumns="false" AllowPaging="true" CssClass="table table-bordered table-hover table-responsive" GridLines="None" PageSize="10" OnRowDataBound="gvRowDataBound">
<Columns>
<asp:CommandField ShowDeleteButton="true" ControlStyle-CssClass="btn btn-danger fa fa-trash" DeleteText="" HeaderText="Remove" />
<asp:BoundField DataField="RowNumber" HeaderText="Sl. No." />
<asp:TemplateField HeaderText="Item Name">
<ItemTemplate>
<asp:DropDownList ID="drpItemname" runat="server" CssClass="form-control select2" OnSelectedIndexChanged="GetItemDetails" AutoPostBack="true"></asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Price">
<ItemTemplate>
<asp:Label ID="lblUnitPrice" runat="server" Text='<%# Eval("UnitPrice")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Qty">
<ItemTemplate>
<asp:Label ID="lblQuantity" runat="server" Text='<%# Eval("Quantity")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Line Total">
<ItemTemplate>
<asp:Label ID="lblLineTotal" runat="server" Text="0"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Add Item" ConvertEmptyStringToNull="False">
<ItemTemplate>
<asp:Button ID="ButtonAdd" runat="server" CssClass="btn btn-primary" Text="Add" OnClick="AddItem" CausesValidation="False" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</div>
</div>
</div>
<div class="card-footer">
<div class="pull-right">
<asp:Button ID="btnSubmit" runat="server" CausesValidation="false" TabIndex="2" CssClass="btn btn-primary" Text="Print KOT" />
<asp:Button ID="Button1" runat="server" CausesValidation="false" TabIndex="2" CssClass="btn btn-primary" Text="Print Final Bill" />
<asp:Button ID="Button2" runat="server" CausesValidation="false" TabIndex="2" CssClass="btn btn-primary" Text="Complete Order" />
</div>
</div>
</div>
</div>
</ItemTemplate>
</asp:Repeater>
</div>
And my c# code to fetch item details:
protected void GetItemDetails(object sender, EventArgs e)
{
foreach(RepeaterItem rptrItems in rptrTables.Items)
{
GridView gvItems = (GridView)rptrTables.Items[0].FindControl("grdOrder");
foreach (GridViewRow row in gvItems.Rows)
{
DropDownList ddl = sender as DropDownList;
Control ctrl = row.FindControl("drpItemName") as DropDownList;
if (ctrl != null)
{
DropDownList ddl1 = (DropDownList)ctrl;
if (ddl.ClientID == ddl1.ClientID)
{
Label UnitPrice = row.FindControl("lblUnitPrice") as Label;
Label QTTY = row.FindControl("lblQuantity") as Label;
Label UPrice = row.FindControl("lblUnitPrice") as Label;
Label LINETOTAL = row.FindControl("lblLineTotal") as Label;
SqlConnection conn = new SqlConnection(constring);
conn.Open();
if (ctrl != null)
{
if ((ddl1.ID == ddl.ID) && (ddl1.SelectedIndex == ddl.SelectedIndex))
{
string str = "select * from ItemMaster where ItemName='" + ddl1.SelectedItem.ToString() + "'";
SqlCommand com = new SqlCommand(str, conn);
SqlDataReader reader = com.ExecuteReader();
while (reader.Read())
{
UnitPrice.Text = reader["UnitPrice"].ToString();
QTTY.Text = reader["Quantity"].ToString(); ;
decimal totamt = Convert.ToDecimal(QTTY.Text) * Convert.ToDecimal(UnitPrice.Text);
}
reader.Close();
conn.Close();
}
else
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "swal", "swal('Item already selected, you can increase the quantity instead!', 'warning');", true);
}
}
}
}
}
}
}
There is a problem in your code. you are always selecting the first item from the repeater control,
GridView gvItems = (GridView)rptrTables.Items[0].FindControl("grdOrder");
Change your code to get the item from foreach loop, so your code will be
GridView gvItems = (GridView)rptrItems.FindControl("grdOrder");
try to use rptrItems instead of the first item of the repeater control each time.
Hope this will help.

Cant access textbox inside gridview inside modalpopup

I have the below a gridview inside a modal popup, I use update a textbox inside an edititemtemplate,then use linkbutton to trigger a postback event so I can save the value inside the textbox for that gridview row,but at code bhind I cant access the textbox when I use findcontrol.
Please assit
<div id="userForm" class="form-horizontal" style="display:none;width:100%;border:solid 0px;" >
<input ID="btnshowRun" type="button" Value="Show Leave" class="btn btn-warning " style="float:lefts;" OnClick ="showhide();"/>
<asp:UpdatePanel ID="UpdatePanel5" runat="server" style="display:none;">
<ContentTemplate>
<asp:GridView ID="GridView2" runat="server" AllowSorting="False"
AutoGenerateColumns="False" DataKeyNames="EntryID"
EmptyDataText="There are no data records to display."
ShowFooter="False" HorizontalAlign="Center" OnRowCommand="gvl_RowCommand"
ShowHeaderWhenEmpty="True" CssClass="table table-striped table-bordered table-hover table-responsive table-condenseds " Width="100%" GridLines="None">
<Columns>
<asp:TemplateField HeaderText="Total" SortExpression="Total">
<EditItemTemplate>
<asp:TextBox ID="Tot" runat="server" Text='<%# Bind("Total") %>' class="form-control"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("Total") %>'></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="CommandButton" runat="server" CommandArgument='<%# Eval("EntryID") %>' UseSubmitBehaviour=true CausesValidation="False"
CommandName="Update" OnCommand="Updates_Command" Text="Update" class="btn btn-primary btn-sm contrl" Style="margin-right: 10px;"
/>
<asp:LinkButton ID="Button2" runat="server" CausesValidation="False" CommandName="Cancel" class="btn btn-warning btn-sm contrl" Style="margin-right: 10px;"
Text="Cancel" />
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="Button1" runat="server" CommandArgument='<%# Eval("EntryID") %>' class="form-control btn btn-default btn-blocks contrl btn-sms"
CommandName="Edit" OnCommand="Button1_Command" Text="Edit" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<HeaderStyle HorizontalAlign="Center" Font-Bold="True" ForeColor="Black"></HeaderStyle>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
This is how am accessing the control in C#
protected void Updates_Command(object sender, CommandEventArgs e)
{
Control p = ((Control)sender).Parent;
int tot = int.Parse(((TextBox)p.FindControl("Tot")).Text);
int rowid = int.Parse(Session["RowID"].ToString());
int suc = Database.ExecuteNonQuery("UPDATE LeaveAssignmentEntry SET Total='" + tot + "' WHERE Id = " + rowid + "");
if (suc==1)
{
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "", "alert('Successful')", true);
}
}
you can use this code to find control inside template :
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow selectedRow = GridView2.Rows[index];
TextBox tot = (TextBox)selectedRow.FindControl("Tot");
Use below line to get text from TextBox with FindControl method:
string tot = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Tot")).Text;

Why Rowcommand event of a gridview is not getting fired ?

I am facing a kind of weird problem.
Problem:
When I click a link button inside a grid view then RowCommand event of a grid view is getting fired when deployed on a localhost but not when deployed on the IIS i.e. client system. I have also tried a link button inside grid view but that's also not getting fired.
Solution: (Temporary)
When I disabled ValidateRequest on the top of the .aspx page. It worked.
What should I do?
So what can be the possible solution for it? I have googled but nothing good came up.
Code:
<asp:GridView ID="gvAppliedWorks" runat="server" OnRowCommand="gvAppliedWorks_RowCommand" AutoGenerateColumns="false" DataKeyNames="AppliedWorkID, ContractorID" EmptyDataText="No Data Found"
CssClass="table table-responsive table-bordered table-striped" OnRowDataBound="gvAppliedWorks_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Form No">
<ItemTemplate>
<asp:Literal ID="liFormNo" runat="server" Text='<% #Eval("FormNo")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Company Name">
<ItemTemplate>
<asp:Literal ID="liCompanyName" runat="server" Text='<% #Eval("Name")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Financial Bid">
<ItemTemplate>
<asp:Label ID="txtBidAmount" runat="server" CssClass="control-label" Text='<% # string.Format("{0:n2}", Eval("FinancialMoney").ToString())%>' />
%
<asp:Label ID="ddlBidPer" runat="server" CssClass="control-label" Text='<%# Eval("AboveBelow").ToString() %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Awarded Percentage">
<ItemTemplate>
<div class="pull-left">
<asp:HiddenField ID="hdnIsAwarded" Value='<%# Eval("IsAwarded") %>' runat="server" />
<asp:TextBox ID="txtAwardedBid" Text='<%#Eval("AwardedBid")%>' Style="width: 70px !important;" runat="server" CssClass="form-control"></asp:TextBox>
</div>
<div class="pull-left" style="margin-top: 7px">
% <%# Eval("AboveBelow").ToString() %>
</div>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Remarks">
<ItemTemplate>
<asp:TextBox ID="txtRemarks" Text='<%#Eval("Remarks")%>' runat="server" CssClass="form-control"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Award Tender">
<ItemTemplate>
<asp:LinkButton ID="lnkAward" runat="server"
CommandArgument='<%# Eval("AppliedWorkID") %>' CommandName="award"
CssClass="btn btn-sm btn-danger" Enabled='<%# Convert.ToBoolean(Eval("IsBlackList")) == true ? false: true %>'
Visible='<%# Convert.ToBoolean( Eval("IsAwarded"))== false? true:false%>' CausesValidation="false" Text="Award"></asp:LinkButton>
<ajax:ConfirmButtonExtender ID="cbe" runat="server" DisplayModalPopupID="mpe" TargetControlID="lnkAward">
</ajax:ConfirmButtonExtender>
<ajax:ModalPopupExtender ID="mpe" runat="server" PopupControlID="pnlPopup" TargetControlID="lnkAward" OkControlID="btnYes"
CancelControlID="btnNo" BackgroundCssClass="modalBackground">
</ajax:ModalPopupExtender>
<asp:Panel ID="pnlPopup" runat="server" CssClass="modalPopup" Style="display: none">
<div class="header">
Confirmation
</div>
<div class="body">
Are you sure to Award this Work?
</div>
<div class="Popupfooter" align="right">
<asp:Button ID="btnYes" CssClass="btn btn-sm btn-danger" runat="server" Text="Yes" />
<asp:Button ID="btnNo" CssClass="btn btn-sm btn-primary" runat="server" Text="No" />
</div>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText='Action'>
<ItemTemplate>
<asp:LinkButton ID="btnBlackList" runat="server" OnClick="btnBlackList_Click" Visible='<%# Convert.ToBoolean( Eval("IsAwarded"))== false? true:false%>' Enabled='<%# Convert.ToBoolean(Eval("IsBlackList")) == true ? false: true %>' Text='Defective'
CssClass="" ToolTip="Blacklist"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
**.cs**
protected void gvAppliedWorks_RowCommand(object sender, GridViewCommandEventArgs e)
{
try
{
// GridViewRow gr = ((GridViewRow)((Control)sender).Parent.Parent);
if (e.CommandName == "award")
{
GridViewRow gr = (GridViewRow)(((LinkButton)e.CommandSource).NamingContainer);
int AppliedWorkID = e.CommandArgument.ToInt32(); //gvAppliedWorks.DataKeys[gr.RowIndex].Value.ToInt32();
TextBox txtAwardedBid = gr.FindControl("txtAwardedBid") as TextBox;
TextBox txtRemarks = gr.FindControl("txtRemarks") as TextBox;
Label txtBid = gr.FindControl("txtBidAmount") as Label;
Label lblAboveBelow = gr.FindControl("ddlBidPer") as Label;
string AboveBelow = lblAboveBelow.Text;
Decimal BidAmount = txtBid.Text.ToDecimal();
if (String.IsNullOrEmpty(txtRemarks.Text))
{
Utility.Msg_Error(this.Master, "Remarks Required!!!");
return;
}
Decimal AwardedBid = string.IsNullOrEmpty(txtAwardedBid.Text.Trim()) ? 0 : txtAwardedBid.Text.Trim().ToDecimal();
string Remarks = txtRemarks.Text;
if (AwardedBid != BidAmount)
{
Utility.Msg_Error(this.Master, "Financial Bid must be equal to Awarded Percentage");
return;
}
if (ClsTender.IsReceivedSubMainOffice(AppliedWorkID, LoginUserID, AwardedBid, Remarks, BidAmount, AboveBelow))
{
Utility.Msg_Success(this.Master, "Work Awarded Successfully!!!");
fill_gvAppliedWorks(labNitNo.Text.Replace("NIT No :", "").ToInt32(), labWorkNo.Text.Replace("Work No :", "").ToInt32());
}
}
}
catch (Exception ex)
{
Utility.Msg_Error(Master, ex.Message);
}
}
It sounds like your page is trying to submit what it thinks is potentially dangerous content if setting the ValidateRequest = false solves the issue. Is it possible that one of the controls on your page is sending html or something like that?
If one of your controls needs to send HTML then you can overcome this by adding an attribute to your model.
[AllowHtml]
[Required]
public string article_content { get; set; }
This will allow html to be entered into the control.

how to get selected value of dropdownlist on nested gridview row command

how can i get selected value of dropdownlist on nested gridview row command.
I have a nested gridview in my page, inside of second gridview i want to use a drop down list for Driver. I am trying to get the selected value for that drop down list but unable to got it in gridview rowcommand. i try button click event also but i am unable to got it.
<asp:GridView ID="dtgNewTrips" runat="server" AllowPaging="true" AutoGenerateColumns="false" CssClass="table table-striped table-bordered table-hover" OnRowDataBound="dtgNewTrips_RowDataBound" DataKeyNames="Trips_ID">
<Columns>
<asp:TemplateField ItemStyle-Width="20px">
<ItemTemplate>
<a href="JavaScript:ViewDetails('div<%# Eval(" Trips_ID ") %>');">
<img alt="City" id="imgdiv<%# Eval("Trips_ID") %>" src="Images/Icons/plusicon.png" />
</a>
<div id="div<%# Eval(" Trips_ID ") %>" style="display: none;">
<asp:GridView ID="dtgViewDetails" runat="server" AutoGenerateColumns="false" DataKeyNames="Trips_ID" CssClass="ChildGrid" ShowHeader="false" OnRowDataBound="dtgViewDetails_RowDataBound" OnRowCommand="dtgViewDetails_RowCommand">
<Columns>
<asp:TemplateField ShowHeader="false">
<ItemTemplate>
<div>
<table style="width: 100%;">
<tr>
<td>Adults:
<asp:Label ID="lblTrip_ID" runat="server" Text='<%#Eval("Trips_ID") %>' Visible="false"></asp:Label>
<asp:Label ID="Label1" runat="server" Text='<%#Eval("AdultsCount") %>'></asp:Label>
</td>
<td>Children:
<asp:Label ID="Label2" runat="server" Text='<%#Eval("ChildrensCount") %>'></asp:Label>
</td>
<td>Passenger Comments:
<asp:Label ID="Label4" runat="server" Text='<%#Eval("PassengerComments") %>'></asp:Label>
</td>
</tr>
<tr>
<td>Trip Stops:</td>
<td>
<asp:Label ID="Label3" runat="server" Text='<%#Eval("TripStops") %>'></asp:Label>
</td>
<td>TripStops Comments:
<asp:Label ID="Label5" runat="server" Text='<%#Eval("TripStopsComments") %>'></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:DropDownList ID="ddlDriver" runat="server" DataTextField="DriverName" DataValueField="DriversInfo_ID" CssClass="form-control" AutoPostBack="false"></asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td>
<asp:Button ID="btnAssign" runat="server" Text="Assign To Driver" CssClass="btn btn-primary" CommandArgument='<%# ((GridViewRow)Container).RowIndex %>' CommandName="Assign" />
</td>
<td>
<asp:Button ID="btnAssignToAll" runat="server" OnClick="btnAssignToAll_Click" Text="Notify All Drivers" CssClass="btn btn-primary" />
<asp:Button ID="btnCancelTrip" runat="server" OnClick="btnCancelTrip_Click" Text="Cancel Trip" CssClass="btn btn-warning" />
</td>
</tr>
</table>
</div>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Trip No">
<ItemTemplate>
<asp:Label ID="lblTripRefID" runat="server" Text='<%#Eval("TripRefID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Customer Name">
<ItemTemplate>
<asp:Label ID="lblCompanyName" runat="server" Text='<%#Eval("CompanyName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Pickup Location">
<ItemTemplate>
<asp:Label ID="lblPickupLocation" runat="server" Text='<%#Eval("PickupLocation") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
C# Code
protected void dtgViewDetails_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Assign")
{
int rowIndex = Convert.ToInt32(e.CommandArgument);
GridView grid = (GridView)sender;
if (grid.ID == "dtgViewDetails")
{
Label lblTrip_ID = (Label)grid.Rows[rowIndex].FindControl("lblTrip_ID");
DropDownList ddlDriver = (DropDownList)grid.Rows[rowIndex].FindControl("ddlDriver");
}
}
}
But i get the by default of dropdownlist that zeroth index value.
please help me..
thanks in advance..

How do i add footertemplate to gridview with option for expand and collapse datarows?C#/ASP.NET

Hi i want to make a footertemplate which can expand and collapse results like this image example in other topic: How do I add FooterTemplate to GridView with BoundFields
I want for default show 1 result, and after clicking in a icon on footertemplate show me more results like 4 or 5, i can show the code, thanks in advance.
The same work i have done on my project! I am pasting that work here. Please go through it, it might help you solving your problem
ASPX:
<asp:GridView Width="100%" border="1" ID="gwProfit" RowStyle-Wrap="true" runat="server" AutoGenerateColumns="false" AlternatingRowStyle-CssClass="alternaterow" RowStyle-VerticalAlign="Bottom" ShowFooter="True" HeaderStyle-Wrap="true" OnRowCommand="gwProfit_RowCommand" OnRowDataBound="gwProfit_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Start Date">
<ItemTemplate>
<div class="input-append">
<asp:TextBox class="input_disabled" ID="txtStartDate" runat="server" Width="110px" Height="22px" Text='<%# Bind("StartDate","{0}") %>'>
</asp:TextBox>
<button class="btn123" ID="ImgStartDate" runat="server" type="button" style="height:25px;">
<i class="icon-calendar"></i>
</button>
</div>
<ajaxToolkit:CalendarExtender ID="StartDate" runat="server" TargetControlID="txtStartDate" PopupButtonID="ImgStartDate" Format="dd-MMM-yyyy">
</ajaxToolkit:CalendarExtender>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox class="input_disabled" ID="txtNewStartDate" runat="server" Width="110px" Height="22px">
</asp:TextBox>
<button class="btn123" ID="ImgStartDate" runat="server" type="button" style="height:25px;">
<i class="icon-calendar"></i>
</button>
</div>
<ajaxToolkit:CalendarExtender ID="StartDate" runat="server" TargetControlID="txtNewStartDate"
PopupButtonID="ImgStartDate" Format="dd-MMM-yyyy">
</ajaxToolkit:CalendarExtender>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="End Date">
<ItemTemplate>
<asp:TextBox class="input_disabled" ID="txtEndDate" runat="server" Width="110px" Height="22px" Text='<%# Bind("EndDate","{0}") %>'>
</asp:TextBox>
<button class="btn123" ID="ImgEndDate" runat="server" type="button" style="height:25px;">
<i class="icon-calendar"></i>
</button>
<ajaxToolkit:CalendarExtender ID="EndDate" runat="server" TargetControlID="txtEndDate"
PopupButtonID="ImgEndDate" Format="dd-MMM-yyyy">
</ajaxToolkit:CalendarExtender>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox class="input_disabled" ID="txtNewEndDate" runat="server" Width="110px" Height="22px">
</asp:TextBox>
<button class="btn123" ID="ImgEndDate" runat="server" type="button" style="height:25px;">
<i class="icon-calendar"></i>
</button>
<ajaxToolkit:CalendarExtender ID="EndDate" runat="server" TargetControlID="txtNewEndDate"
PopupButtonID="ImgEndDate" Format="dd-MMM-yyyy">
</ajaxToolkit:CalendarExtender>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Profit Per Unit">
<ItemTemplate>
<asp:TextBox class="input_disabled" ID="txtProfitPerUnit" Width="100px" Height="22px" runat="server" Text='<%# Bind("ProfitPerUnit","{0}") %>'> </asp:TextBox>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox class="input_disabled" ID="txtNewProfitPerUnit" Width="100px" Height="22px" runat="server" Text="0"/>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Action" ControlStyle-Width="14px" FooterStyle-Width="14px">
<ItemTemplate>
<input type="hidden" id="txtrec_status" name="txtrec_status" runat="server"/>
<asp:ImageButton ID="btnDelete" runat="server" CommandName="Delete" ImageUrl="~/images/delete.gif" AlternateText="Delete" CommandArgument="<%# ((GridViewRow) Container).RowIndex%>" UseSubmitBehavior="False" />
</ItemTemplate>
<FooterTemplate>
<asp:ImageButton ID="btnAdd" runat="server" CommandName="Add" ImageUrl="~/images/add.png" AlternateText="Add" UseSubmitBehavior="False"/>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
CodeBehind:
protected void gwProfit_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (ViewState["dtStartDate"] != null)
dtStartDate = (DataTable) ViewState["dtStartDate"];
if (e.CommandName.Equals("Add"))
{
TextBox txtStartDate = (TextBox)gwProfit.FooterRow.FindControl("txtNewStartDate");
TextBox txtEndDate = (TextBox)gwProfit.FooterRow.FindControl("txtNewEndDate");
TextBox txtProfitPerUnit = (TextBox)gwProfit.FooterRow.FindControl("txtNewProfitPerUnit");
if (txtEndDate.Text == "" || txtStartDate.Text == "" || txtProfitPerUnit.Text == "")
{
ScriptManager.RegisterStartupScript(this, GetType(), "alert", "alert('Please Select Start Date, End Date And Profit Per Unit.')", true);
}
else
{
dtStartDate.Rows.Add(dtStartDate.NewRow());
dtStartDate.Rows[dtStartDate.Rows.Count - 1]["CurrencyDeatailID"] = -2;
dtStartDate.Rows[dtStartDate.Rows.Count - 1]["StartDate"] = objFunc.toDate(txtStartDate.Text);
dtStartDate.Rows[dtStartDate.Rows.Count - 1]["EndDate"] = objFunc.toDate(txtEndDate.Text);
dtStartDate.Rows[dtStartDate.Rows.Count - 1]["ProfitPerUnit"] = objFunc.toDecimal(txtProfitPerUnit.Text);
if (dtStartDate.Rows.Count >= 0&&dtStartDate.Rows[0]["CurrencyDeatailID"].ToString()=="-1")
{
dtStartDate.Rows[0].Delete();
if (dtStartDate.Rows.Count > 0 && dtStartDate.Rows[0].RowState == DataRowState.Deleted)
dtStartDate.Rows.RemoveAt(0);
}
ViewState["dtStartDate"] = dtStartDate;
Profit_LoadGrid();
}
}
else if (e.CommandName.Equals("Delete"))
{
int index = objFunc.toInt(e.CommandArgument.ToString());
GridViewRow gvr = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
int RemoveAt = gvr.RowIndex;
DataTable dt = new DataTable();
dt = (DataTable)ViewState["dtStartDate"];
dt.Rows.RemoveAt(RemoveAt);
dt.AcceptChanges();
ViewState["dtStartDate"] = dt;
Profit_LoadGrid();
}
}
It would be easy
Activate "AllowPaging" in your GridView.
Make Paging row invisible.
In every click of an icon increase "PageSize" for expanding or click of another icon decrease "PageSize" for collapsing.

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