Develop Reference

Hidden Field in Gridview

I have hidden field in gridview. I do not get the value in code behind. It works fine without MasterPage and Ajax, can you help me to get a value in code behind.
Thanks
protected void empgrid_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "UpdateEmployee")
{
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = empgrid.Rows[index];
Session["Employee"] = ((HiddenField)empgrid.Rows[Convert.ToInt32(e.CommandArgument)].FindControl("EmployeeID")).Value;
Response.Redirect("UpdateEmployee.aspx");
}
}
<%# Page EnableEventValidation = "false" Title="" MasterPageFile="~/EmploymentWeb.Master" Language="C#" AutoEventWireup="true" CodeBehind="employeeborowes.aspx.cs" Inherits="Employment_Site.employeeborowes" %>
<asp:Content ID="Content1" ContentPlaceHolderID="AllContent" runat="server">
<table style="width: 100%">
<tr>
<td style="width: 105px">
<asp:Label ID="Label1" runat="server" Text="Employee Name"></asp:Label>
</td>
<td style="width: 178px">
<asp:TextBox ID="empname" runat="server" Width="165px"></asp:TextBox>
</td>
<td class="style2" style="width: 61px">
<asp:Button ID="btnsearch" runat="server" Text="Search" Width="70px"
onclick="btnsearch_Click" />
</td>
<td class="style2" style="width: 72px">
<asp:Button ID="btnclear" runat="server" onclick="btnclear_Click" Text="Clear"
Width="70px" />
</td>
<td style="width: 144px">
</td>
</tr>
<tr>
<td style="width: 105px">
</td>
<td colspan="4">
<asp:UpdatePanel ID="UpdatePanel1" runat="server"
UpdateMode="Conditional" >
<ContentTemplate>
<asp:GridView ID="empgrid" runat="server" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333" GridLines="None" Width="303px"
onrowcommand="empgrid_RowCommand">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:TemplateField Visible="False">
<ItemTemplate>
<asp:HiddenField ID="EmployeeID" runat="server" Value='<%# Eval("EmployeeID") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="FirstName" HeaderText="First Name" />
<asp:BoundField DataField="LastName" HeaderText="Last Name" />
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnupdate" runat="server" Text="Update"
CommandName="UpdateEmployee" CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#2461BF" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White"
HorizontalAlign="Center" />
<RowStyle BackColor="#EFF3FB" />
<SelectedRowStyle BackColor="#D1DDF1" ForeColor="#333333" Font-Bold="True" />
<SortedAscendingCellStyle BackColor="#F5F7FB" />
<SortedAscendingHeaderStyle BackColor="#6D95E1" />
<SortedDescendingCellStyle BackColor="#E9EBEF" />
<SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td style="width: 105px">
</td>
<td style="width: 178px">
</td>
<td class="style2" style="width: 61px">
</td>
<td class="style2" style="width: 72px">
</td>
<td style="width: 144px">
</td>
</tr>
<tr>
<td style="width: 105px">
</td>
<td style="width: 178px">
</td>
<td class="style2" style="width: 61px">
</td>
<td class="style2" style="width: 72px">
</td>
<td style="width: 144px">
</td>
</tr>
</table>
</asp:Content>

Try this
GridViewRow row = (GridViewRow)(((Control)e.CommandSource).NamingContainer);
HiddenField empID = (HiddenField)row.FindControl("EmployeeID");
Session["Employee"] = empID.Value;

Try This:
Use Response.Redirect("UpdateEmployee.aspx",false);
instead of Response.Redirect("UpdateEmployee.aspx");
This is because of the way Redirect and session variables work.
When you create a new session an volatile cookie is set on the client that contains the session token. On all subsequent requests, and as long as the server session and the client cookie have not expired, ASP.NET can look at this cookie and find the right session.
what Redirect does is to send a special header to the client so that it asks the server for a different page than the one it was waiting for.
Hope this helps!!

ImageButton in GridView TemplateField wont show AJAX Popup Modal

I have a page that displays a GridView containing an ImageButton TemplateField. My goal is to display an AJAX modal popup when one of those buttons are clicked, along with displaying the row where the button is pressed. The problem is that when I click on a button, it does not show the modal popup. I tried to use this tutorial and read several articles on this site about this issue but to no avail. How to properly fire the button event and show the popup?
Here is the snippet for the gridview:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
Width="505px" DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="ItemDesc"
SortExpression="ItemDesc" ItemStyle-Width="100px" ItemStyle-Height="100px">
<ItemStyle Height="100px" Width="100px"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="Price" SortExpression="Price"
ItemStyle-Width="100px" ItemStyle-Height="100px">
<ItemStyle Height="100px" Width="100px"></ItemStyle>
</asp:BoundField>
<asp:TemplateField>
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Image ID="Image1" runat="server" Height="200px"
ImageUrl='<%# Eval("ImagePath") %>' Width="200px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:ImageButton ID="ImageButton1" runat="server" CommandName="atc" ImageUrl="~/App_Themes/img/shop/addtocart.png"
Text="Add to Cart" CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"/>
</ItemTemplate>
<ControlStyle Height="30px" Width="105px" />
<ItemStyle Width="105px" />
</asp:TemplateField>
</Columns>
</asp:GridView>
...
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="HiddenField1" PopupControlID="Panel1" BackgroundCssClass="modalBg" CancelControlID="btnClose">
</asp:ModalPopupExtender>
<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:Panel ID="Panel1" runat="server" Width="500" Height="500" Visible="False"
style="background-color:#6f95f4; color:#000000;">
<div class="style1">
<br />
<br />
<br />
<br />
<br />
<table style="width: 90%; height: 71px;">
<tr>
<td>
Item Name</td>
<td>
<asp:Label ID="lblItemName" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td>
Price</td>
<td>
<asp:Label ID="lblPrice" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td colspan="2">
</td>
</tr>
<tr>
<td>
Quantity</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Type="Number" Min="1" MaxLength="100"
Width="75px" Height="23px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
Total Price</td>
<td>
<asp:Label ID="lblTotalPrice" runat="server" Text="Label"></asp:Label>
</td>
</tr>
</table>
<br />
<br />
<asp:Button ID="btnAddToCart" runat="server" Text="Add to Cart"
onclick="btnAddToCart_Click" />
<br />
<br />
<asp:Button ID="btnClose" runat="server" onclick="btnClose_Click" Text="Close"
Width="199px" />
</div>
</asp:Panel>
And here's my code for the event:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("atc"))
{
ModalPopupExtender1.Show();
//// Retrieve the row index stored in the
//// CommandArgument property.
int index = Convert.ToInt32(e.CommandArgument);
//// Retrieve the row that contains the button
//// from the Rows collection.
GridViewRow row = GridView1.Rows[index];
lblItemName.Text = row.Cells[0].Text;
lblPrice.Text = row.Cells[1].Text;
Response.Write("<script>alert('" + row.Cells[0].Text + "\n" + row.Cells[1].Text + "');</script>");
//// Add code here to add the item to the shopping cart.
}
}
EDIT: Added the panel code.

Try like this:
100% working and Tested
Use onrowcommand="GridView1_RowCommand" for GridView
Use display:none for Your Panel instead of Visible="false"
I Commented your alert(in rowbound) it contains js error
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="505px"
onrowcommand="GridView1_RowCommand"
>
<Columns>
<asp:BoundField DataField="ItemDesc" SortExpression="ItemDesc" ItemStyle-Width="100px"
ItemStyle-Height="100px">
<ItemStyle Height="100px" Width="100px"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="Price" SortExpression="Price" ItemStyle-Width="100px"
ItemStyle-Height="100px">
<ItemStyle Height="100px" Width="100px"></ItemStyle>
</asp:BoundField>
<asp:TemplateField>
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Image ID="Image1" runat="server" Height="200px" ImageUrl='<%# Eval("ImagePath") %>'
Width="200px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:ImageButton ID="ImageButton1" runat="server" CommandName="atc"
CausesValidation="false"
Text="Add to Cart" CommandArgument="<%# ((GridViewRow) Container).RowIndex %>" />
</ItemTemplate>
<ControlStyle Height="30px" Width="105px" />
<ItemStyle Width="105px" />
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
<ajax:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="Panel1"
PopupControlID="Panel1" OnOkScript="okClick();"
OnCancelScript="cancelClick();"
OkControlID="btnAddToCart" CancelControlID="btnClose">
</ajax:ModalPopupExtender>
<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:Panel ID="Panel1" runat="server" Width="500" Height="500"
style="background-color:#6f95f4; color:#000000;display:none">
<div class="style1">
<br />
<br />
<br />
<br />
<br />
<table style="width: 90%; height: 71px;">
<tr>
<td>
Item Name</td>
<td>
<asp:Label ID="lblItemName" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td>
Price</td>
<td>
<asp:Label ID="lblPrice" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td colspan="2">
</td>
</tr>
<tr>
<td>
Quantity</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Type="Number" Min="1" MaxLength="100"
Width="75px" Height="23px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
Total Price</td>
<td>
<asp:Label ID="lblTotalPrice" runat="server" Text="Label"></asp:Label>
</td>
</tr>
</table>
<br />
<br />
<asp:Button ID="btnAddToCart" runat="server" Text="Add to Cart"
onclick="btnAddToCart_Click" />
<br />
<br />
<asp:Button ID="btnClose" runat="server" onclick="btnClose_Click" Text="Close"
Width="199px" />
</div>
</asp:Panel>
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("atc"))
{
ModalPopupExtender1.Show();
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = GridView1.Rows[index];
ImageButton ImageButton1=(ImageButton)row.FindControl("ImageButton1");
// Response.Write("<script>alert('" + row.Cells[0].Text + "\n" + row.Cells[1].Text + "');</script>"); comment this
}

You didn't set OnRowCommand property of the GridView, so GridView1_RowCommand method won't be fired when you click the image button. Here's how you do it
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
Width="505px" DataSourceID="SqlDataSource1"
OnRowCommand="GridView1_RowCommand">
See here for more details.

Printing an aspx file in Asp.net

I have used the following code to print an HTML DIV Contents & it works fine, but when I am using an Ajax Control in an Aspx page then it gives me an error message, i.e:
"Extender control 'CalendarExtender2' is not a registered extender
control. Extender controls must be registered using
RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl"
Here is my C# code
protected void BtnPrint_Click(object sender, EventArgs e)
{
StringWriter stringWrite = new StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new System.Web.UI.HtmlTextWriter(stringWrite);
Page pg = new Page();
pg.EnableEventValidation = false;
HtmlForm frm = new HtmlForm();
pg.EnableEventValidation = false;
pg.Controls.Add(frm);
frm.Attributes.Add("runat", "server");
frm.Controls.Add(divContent);
pg.DesignerInitialize();
pg.RenderControl(htmlWrite);
string strHTML = stringWrite.ToString();
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Write(strHTML);
HttpContext.Current.Response.Write("<script>window.print();</script>");
HttpContext.Current.Response.End();
}
Here is my Aspx code
<%# Page Title="" Language="C#" MasterPageFile="~/Masters/TSAMaster.master" AutoEventWireup="true"
EnableEventValidation="false" Theme="skinFiles" CodeFile="AdminHome.aspx.cs"
Inherits="Masters_Default" %>
<%# Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<script type="text/javascript">
function ValidateDate() {
isValidDate = ValidateDate();
if (!isValidDate) {
return false;
}
else {
return true;
}
}
function ValidateDate() {
var Fdate = document.getElementById('ctl00_ContentPlaceHolder1_txtFDate').value;
var Tdate = document.getElementById('ctl00_ContentPlaceHolder1_txtTDate').value;
var todaysDate = formatDate(new Date(), 'dd/MM/yyyy');
var isValidDate = true;
var flag;
if (trim(Fdate) != 0 || trim(Tdate) != 0) {
if (!isDate(Fdate, 'dd/MM/yyyy')) {
alert("Please select valid From Date enter into (dd/MM/yyyy) format");
document.getElementById('ctl00_ContentPlaceHolder1_txtFDate').focus();
return false;
}
if (!isDate(Tdate, 'dd/MM/yyyy')) {
alert("Please select valid To Date enter into (dd/MM/yyyy) format ");
document.getElementById('ctl00_ContentPlaceHolder1_txtFDate').focus();
return false;
}
if (((compareDates(Fdate, 'dd/MM/yyyy', Tdate, 'dd/MM/yyyy')) == 1)) {
alert("To date cannot be less than From Date ");
return false;
}
return true;
}
}
function trim(str) {
return str.replace(/^[\s]+/, '').replace(/[\s]+$/, '').replace(/[\s]{2,}/, ' ');
}
</script>
<ajaxToolkit:ToolkitScriptManager runat="Server" EnableScriptGlobalization="true"
EnableScriptLocalization="true" ID="ScriptManager1" />
<center>
<div class="divContainPage" id="divContent" runat="server">
<table id="tblHead" runat="server">
<tr>
<td>
<asp:Label ID="Label3" runat="server" Text="DueDate Report" Font-Bold="True" Font-Names="Verdana"
Font-Size="Large" ForeColor="#C80000"></asp:Label>
<br />
<br />
<table id="tbl1" runat="server" style="width: 823px">
<tr>
<td>
Select Payment Mode:
</td>
<td>
<asp:DropDownList ID="ddlPayMode" runat="server" CssClass="DropDown" Width="85px">
<asp:ListItem>--Select--</asp:ListItem>
<asp:ListItem>Cash</asp:ListItem>
<asp:ListItem>Cheque</asp:ListItem>
</asp:DropDownList>
</td>
<td>
From Date:
</td>
<td>
<asp:TextBox ID="txtFDate" runat="server" Width="110px"></asp:TextBox>
<asp:ImageButton ID="imgCalendar" runat="server" ImageUrl="~/Images/calendar.png"
TabIndex="1" />
<ajaxToolkit:CalendarExtender ID="CalendarExtender2" runat="server" TargetControlID="txtFDate"
Format="dd/MM/yyyy" PopupPosition="BottomRight" PopupButtonID="imgCalendar" />
</td>
<td>
To Date:
</td>
<td>
<asp:TextBox ID="txtTDate" runat="server" Width="110px"></asp:TextBox>
<asp:ImageButton ID="imgCalendar1" runat="server" ImageUrl="~/Images/calendar.png"
TabIndex="2" />
<ajaxToolkit:CalendarExtender ID="CalendarExtender3" runat="server" TargetControlID="txtTDate"
Format="dd/MM/yyyy" PopupPosition="BottomRight" PopupButtonID="imgCalendar1" />
</td>
<td>
<asp:Button ID="btnGo" runat="server" Text="Go" OnClick="btnGo_Click" OnClientClick="return ValidateDate();" />
</td>
<td>
<asp:Button ID="btnReset" runat="server" Text="Reset" OnClick="btnReset_Click" Width="47px" />
</td>
</tr>
</table>
<table style="width: 600px" runat="server" id="tblone">
<tr>
<td>
<asp:GridView ID="grdStudentInfo" runat="server" SkinID="Professional" DataKeyNames="StudentID"
Width="800px" AllowSorting="True" AutoGenerateColumns="False" BackColor="#DEBA84"
BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2"
OnSorting="grdStudentInfo_sorting" AllowPaging="True" OnPageIndexChanging="grdStudentInfo_PageIndexChanging"
OnRowCommand="grdStudent_RowCommand">
<RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
<Columns>
<asp:BoundField HeaderText="Name" DataField="FirstandLastName" SortExpression="FirstandLastName">
<ItemStyle HorizontalAlign="left" Width="100px" />
<HeaderStyle HorizontalAlign="left" Width="100px" />
</asp:BoundField>
<asp:BoundField HeaderText="Amount Due" DataField="FirstInstallmentFee" SortExpression="FirstInstallmentFee">
<ItemStyle HorizontalAlign="left" Width="100px" />
<HeaderStyle HorizontalAlign="left" Width="100px" />
</asp:BoundField>
<asp:BoundField HeaderText="Payment Mode" DataField="FirstInsMode" SortExpression="FirstInsMode">
<ItemStyle HorizontalAlign="left" Width="100px" />
<HeaderStyle HorizontalAlign="left" Width="100px" />
</asp:BoundField>
<asp:BoundField HeaderText="Bank Name" DataField="FirstBankName" SortExpression="FirstBankName">
<ItemStyle HorizontalAlign="left" Width="200px" />
<HeaderStyle HorizontalAlign="left" Width="200px" />
</asp:BoundField>
<asp:BoundField HeaderText="Cheque Number" DataField="FirstChequeNumber" SortExpression="FirstChequeNumber">
<ItemStyle HorizontalAlign="left" Width="200px" />
<HeaderStyle HorizontalAlign="left" Width="200px" />
</asp:BoundField>
<asp:BoundField HeaderText="Due Date" DataField="FirstInstallmentDate" SortExpression="FirstInstallmentDate">
<ItemStyle HorizontalAlign="left" Width="200px" />
<HeaderStyle HorizontalAlign="left" Width="200px" />
</asp:BoundField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:LinkButton ID="lnkEdit" runat="server" CommandName="editStudent" Text="Edit"
CommandArgument='<%#Eval("StudentID")%>'></asp:LinkButton>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" Width="200px" />
<HeaderStyle HorizontalAlign="Left" Width="200px" />
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
<PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
</asp:GridView>
</td>
</tr>
</table>
<table id="tbl3" runat="server">
<tr style="height: 30px;">
<td>
<asp:Button ID="btnExport2PDF" runat="server" Text="Export To PDF" OnClick="btnExport2PDF_Click" />
</td>
<td>
<asp:Button ID="btnExport2XLS" runat="server" Text="Export To XLS" OnClick="btnExport2XLS_Click" />
<asp:HiddenField ID="hidSort" runat="server" Value="1" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
</center>
If I use frm.Controls.Add(tblOne) instead of frm.Controls.Add(divContent) then it works fine because tblone doesn't have an Ajax Control. But divContent has both the table as well as Ajax Controls, and it throws the above exception. I have tried many options like overriding OnInit and OnPreRender but doesn't work for me.

It could be due to the placement of ToolkitScriptManager in your code. See if this resolves your problem:
Error: Extender controls may not be registered before PreRender

Finally i have resolved this problem by using JavaScript code & it works better for me, i would like to thanks for all who gives their valuable time & feedback.
The code is here :
<script>
function Panel1() {
var panel = document.getElementById("<%=printablediv.ClientID %>");
var printWindow = window.open('', '', 'height=400,width=800');
printWindow.document.write('<html><head><title>newTable</title>');
printWindow.document.write('</head><body >');
printWindow.document.write(panel.innerHTML);
printWindow.document.write('</body></html>');
printWindow.document.close();
setTimeout(function() {
printWindow.print();
printWindow.close();
}, 1000);
return false;
}
</script>

Gridview Calendar Extender get date

I have a GridView which allows users to enter data using a EmptyDataTemplate. There is a text box having a calendarextender. I want to get the date entered (format MM/dd/yyyy) and pass it to the database.
Please let me know how to do it.
My code:
<asp:GridView ID="GV_Rotl_Asgt" runat="server" EnableModelValidation="True"
BackColor="White" BorderColor="#999999" BorderStyle="None"
BorderWidth="1px" CellPadding="3" Font-Names="Arial"
Font-Size="8pt" GridLines="Vertical"
AllowSorting="True" EnableSortingAndPagingCallbacks="True" AutoGenerateColumns="False"
Width="1196px"
ShowFooter="True" OnRowCommand="GV_RowCommand" DataKeyNames="Emplid">
<FooterStyle BackColor="#CCCCCCC" ForeColor="Black" />
<PagerSettings PageButtonCount="1000" />
<RowStyle BackColor="#EEEEEE" ForeColor="Black" />
<Columns>
<asp:TemplateField HeaderText="Action" HeaderStyle-ForeColor="#00349C">
<ItemTemplate>
<asp:LinkButton ID="btnEdit" Text="Edit" runat="server" CommandName="Edit" CssClass="infotitle" /> <br />
<asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="Delete" CssClass="infotitle"/>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="btnUpdate" Text="Update" runat="server" CommandName="Update" CssClass="infotitle" />
<asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" CssClass="infotitle"/>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton runat="server" ID="Insert" Text="Insert" CommandName="InsertNew" CssClass="infotitle" />
<asp:LinkButton runat="server" ID="Cancel" Text="Cancel" CommandName="CancelNew" CssClass="infotitle" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
<table id="NoDatatbl" width="100%" style="margin-right: 0px">
<tr>
<td class="ColumnHead" width="150px">
To Date</td>
<td class="ColumnHead" width="150px">
From Date</td>
<td class="ColumnHead" width="150px">
Rotational Assignment</td>
<td class="ColumnHead" width="150px">
Location</td>
<td class="ColumnHead" width="150px">
</td>
</tr>
</table>
<table id="NoDatatbl1" width="100%" style="margin-right: 0px">
<tr>
<td class="ColumnHead" width="150px">
<asp:TextBox runat="server" ID="NodataToDt" format="MM/dd/yyyy"/>
<asp:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="NodataToDt" format="MM/dd/yyyy"/>
</td>
<td class="ColumnHead" width="150px">
<asp:TextBox runat="server" ID="NodatafrmDt" format="MM/dd/yyyy"/>
<asp:CalendarExtender ID="CalendarExtender2" runat="server" TargetControlID="NodatafrmDt" format="MM/dd/yyyy"/>
<asp:CompareValidator ID="CompareValidator1" runat="server" ControlToValidate="NodatafrmDt" ControlToCompare="NodataToDt" Operator="GreaterThanEqual"
Display="Dynamic" ErrorMessage="From Date should be greater than To Date"
Type="Date"></asp:CompareValidator>
<asp:ValidatorCalloutExtender ID="CompareValidator1_ValidatorCalloutExtender" runat="server" Enabled="True" TargetControlID="CompareValidator1">
</asp:ValidatorCalloutExtender>
</td>
<td class="ColumnHead" width="150px">
<asp:TextBox runat="server" ID="NodataRotl" /></td>
<td class="ColumnHead" width="150px">
<asp:TextBox runat="server" ID="NodataLoc" /></td>
<td class="ColumnHead" width="150px">
<asp:LinkButton runat="server" ID="LinkButton1" Text="Insert" CommandName="NoDataInsert" CssClass="infotitle" />
</td>
</tr>
</table>
</EmptyDataTemplate>
</asp:GridView>
Basically, I want to fetch the values from the NodataToDt & NodatafrmDt textboxes in codebehind and pass the values to my stored procedure.
Thanks

In your code behind:
// Find the 2 text boxes within your GridView control
TextBox toDateTextBox = (TextBox)GV_Rotl_Asgt.FindControl("NodataToDt");
TextBox fromDateTextBox = (TextBox)GV_Rotl_Asgt.FindControl("NodatafrmDt");
// Grab the values out of those text boxes
string toDate = toDateTextBox.Text;
string fromDate = fromDateTextBox.Text;
From there, you can do whatever you need with those two string values.

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.