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Setting textbox text in an update panel from a gridview rowcommand

I am trying to update the values of textboxes within an update panel from the rowcommand of a gridview, also within the update panel. The rowcommand is firing the update panel and running through the OnRowCommand code, however the values of the textboxes simply aren't being updated.
I am not getting any errors, and I have checked that I am not simply entering blank strings by tracing the value of the class I am supplying the values from.
Here is my code:
ASPX
<asp:Panel ID="pnlInspectorExpenses" CssClass="expenses" runat="server" Visible="false">
<asp:HiddenField ID="hdnInsExpID" runat="server" />
<asp:UpdatePanel ID="uPnlInspectorExpenses" runat="server">
<ContentTemplate>
<table>
<tr>
<td class="tableHead tableItem">IMO Number:</td>
<td class="tableField"><asp:Label ID="lblExpensesIMO" runat="server" /></td>
<td></td>
</tr>
<tr>
<td class="tableHead tableItem">Port of Vessel:</td>
<td class="tableField"><asp:Label ID="lblExensesPort" runat="server" /></td>
<td></td>
</tr>
<%--<tr>
<td class="tableHead tableItem">Report No.:</td>
<td class="tableField"><asp:Label ID="lblExpensesReportNo" runat="server" /></td>
<td></td>
</tr>--%>
<tr>
<td class="tableHead tableItem">Client Reference:</td>
<td class="tableField"><asp:Label ID="lblExpensesClientRef" runat="server" /></td>
<td></td>
</tr>
<tr>
<td class="tableHead tableItem">Vessel Type:</td>
<td class="tableField"><asp:Label ID="lblExpensesVesselType" runat="server" /></td>
<td></td>
</tr>
</table>
<table class="tableClass">
<tr>
<th align="left">Date</th>
<th align="left">Expense Description</th>
<th align="left">Type</th>
<th align="left">Currency</th>
<th align="right">Foreign Cost</th>
<th align="right">Exch. Rate</th>
<th align="right">GBP</th>
<th align="left">Receipt No</th>
<th colspan="2"></th>
</tr>
<tr>
<td colspan="10" class="zeroPadding">
<asp:GridView ID="grdInspectorExpenses" runat="server" CssClass="tableClass zeroMargin zeroBorder" DataKeyNames="ExpID" AutoGenerateColumns="false"
OnRowCommand="grdInspectorExpenses_RowCommand">
<Columns>
<asp:BoundField DataField="ExpDate" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Left" DataFormatString="{0:d}" ItemStyle-Width="90px" />
<asp:BoundField DataField="ExpDescription" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Left" ItemStyle-Width="220px" />
<asp:BoundField DataField="ExpType" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Left" ItemStyle-Width="100px" />
<asp:BoundField DataField="ExpCurrency" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Left" ItemStyle-Width="75px" />
<asp:BoundField DataField="ExpForeignCost" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Right" ItemStyle-Width="75px" />
<asp:BoundField DataField="ExpExchangeRate" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Right" ItemStyle-Width="80px" />
<asp:BoundField DataField="ExpLocalCost" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Right" ItemStyle-Width="80px" />
<asp:BoundField DataField="ExpReceiptNo" HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Left" ItemStyle-Width="80px" />
<asp:TemplateField HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="30px">
<ItemTemplate>
<asp:LinkButton ID="btnEditExpense" runat="server" Text="Edit" CommandName="Edit" CommandArgument="<%# Container.DataItemIndex %>" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-CssClass="invisible" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:LinkButton ID="btnDeleteExpense" runat="server" Text="Delete" OnClientClick="javascript: if (!confirm('Are you sure you want delete?')) return false;"
CommandName="Delete" CommandArgument="<%# Container.DataItemIndex %>" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
No expenses have yet been added
</EmptyDataTemplate>
</asp:GridView>
</td>
</tr>
<tr>
<td><asp:TextBox ID="txtInsExpDate" CssClass="datepicker" runat="server" Width="88px" style="padding: 5px 0px;" /></td>
<td><asp:TextBox ID="txtInsExpDesc" runat="server" Width="218px" style="padding: 5px 0;" /></td>
<td>
<asp:DropDownList ID="ddlExpenseType" runat="server" style="width:100px; padding: 4px 0;">
<asp:ListItem Text="General" Value="General" />
<asp:ListItem Text="Accommodation" Value="Accommodation" />
<asp:ListItem Text="Flight" Value="Flight" />
</asp:DropDownList>
</td>
<td><asp:TextBox ID="txtInsExpCurrency" runat="server" Width="68px" style="padding: 5px 0;" /></td>
<td><asp:TextBox ID="txtInsExpForVal" runat="server" Width="78px" style="text-align: right; padding: 5px 0;" /></td>
<td><asp:TextBox ID="txtInsExpExcRate" runat="server" Width="78px" style="text-align: right; padding: 5px 0;" /></td>
<td><asp:TextBox ID="txtInsExpLocVal" runat="server" Width="78px" style="text-align: right; padding: 5px 0;" /></td>
<td><asp:TextBox ID="txtInsExpRecNo" runat="server" Width="78px" style="padding: 5px 0;" /></td>
<td colspan="2" style="width:100px"></td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress5" runat="server" DynamicLayout="true">
<ProgressTemplate>
<div class="overlay" >
<img src="/Portals/_default/Skins/PMIT/Images/radarLoading.gif" />
</div>
</ProgressTemplate>
</asp:UpdateProgress>
</asp:Panel>
ASPX.CS
protected void grdInspectorExpenses_RowCommand(object sender, GridViewCommandEventArgs e)
{
Trace.Warn("0");
if (e.CommandName == "Edit")
{
Trace.Warn("1");
int rowIndex = int.Parse(e.CommandArgument.ToString());
int ExpID = int.Parse(grdInspectorExpenses.DataKeys[rowIndex].Values[0].ToString());
hdnInsExpID.Value = ExpID.ToString();
List<ExpenseInfo> Expenses = IC.ExpenseSelect(ExpID);
ExpenseInfo Expense = Expenses[0];
txtInsExpDate.Text = Expense.ExpDate.ToString();
txtInsExpDesc.Text = Expense.ExpDescription;
ddlExpenseType.Items.FindByValue(Expense.ExpType).Selected = true;
txtInsExpCurrency.Text = Expense.ExpCurrency;
txtInsExpForVal.Text = Expense.ExpForeignCost.ToString();
txtInsExpExcRate.Text = Expense.ExpExchangeRate.ToString();
txtInsExpLocVal.Text = Expense.ExpLocalCost.ToString();
txtInsExpRecNo.Text = Expense.ExpReceiptNo;
Trace.Warn(Expense.ExpReceiptNo);
}
else if (e.CommandName == "Delete")
{
}
}

I figured this out in the end. It seems that if you name the CommandName "Edit", it calls the 'OnRowEditing' function, which was undefined. Therefore I just renamed the CommandName to "EditExpenses" instead. I did the same for the Delete command as well.

Please set the UpdatePanel's UpdateMode to Always to see if this makes a difference. For rules and conditions when an UpdatePanel content is updated, see here under Remarks: http://msdn.microsoft.com/en-us/library/system.web.ui.updatepanel.updatemode(v=vs.110).aspx

In grid view i cannot access the control id's from <EmptyDataTemplate> in its .ascx.cs file

wcJobShuffling.ascx
//This is an existing code in which a panel navigation contains a grid view.In its ascx.cs the intellisense is not showing the control id's from EmptyDataTemplate.
<asp:Panel ID="navigationJobs" runat="server">
<table width="98%" cellpadding="0" cellspacing="0" align="center">
<tr>
<td valign="middle" colspan="5" class="tab_not_sltd">
<table cellpadding="0" cellspacing="1" style="width: 100%;">
<tr>
<td style="width: 100%">
<table cellpadding="0" cellspacing="1" style="width: 100%;">
<tr>
<td class="print_row" style="height: 3px">
<a class="blue_nor_lnk" href="#"></a>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<tr width="98%" align="center">
<td align="left" valign="middle" width="9%" nowrap>
<asp:ImageButton ID="imgFirstPage" runat="server" align="absmiddle" border="0" SkinID="imgButtonFirst"
OnClick="imgFirstPage_Click" ToolTip="First" CausesValidation="false" />
<asp:ImageButton ID="imgPrevPage" runat="server" align="absmiddle" border="0" SkinID="imgButtonPrev"
OnClick="imgPrevPage_Click" ToolTip="Previous" CausesValidation="false" />
<span class="blue_normal">
<asp:Label ID="lblSPage" runat="server" CssClass=" blue_normal" align="absmiddle"
Width="12px"></asp:Label>
<asp:Label ID="lblto" runat="server" Text="of" CssClass="blue_normal" align="absmiddle"
Width="12px"></asp:Label>
<asp:Label ID="lblEPage" runat="server" CssClass="blue_normal" align="absmiddle"
Width="12px"></asp:Label>
<asp:Label ID="lblof" runat="server" Text="of" CssClass="blue_normal" align="absmiddle"
Visible="false"></asp:Label>
<asp:Label ID="lblTotalRecords" runat="server" CssClass=" blue_normal" align="absmiddle"></asp:Label>
</span>
<asp:ImageButton ID="imgNextPage" runat="server" align="absmiddle" border="0" SkinID="imgButtonNext"
OnClick="imgNextPage_Click" ToolTip="Next" CausesValidation="false" />
<asp:ImageButton ID="imgLastPage" runat="server" align="absmiddle" border="0" SkinID="imgButtonLast"
OnClick="imgLastPage_Click" ToolTip="Last" CausesValidation="false" />
</td>
<td align="left" valign="middle" width="7%" nowrap>
<asp:Label ID="spangoto" runat="server" Text="Go to Page: " CssClass="black_normal"></asp:Label>
<span class="blue_bold">
<asp:DropDownList ID="ddlgoto" runat="server" AutoPostBack="true" CssClass="black_normal"
OnSelectedIndexChanged="ddlgoto_SelectedIndexChanged" Width="40px">
</asp:DropDownList>
</span>
</td>
<td align="left" valign="middle" width="25%" nowrap>
<asp:Label ID="spanRpg" runat="server" Text=" Records Per Page: " CssClass="black_normal"></asp:Label>
<span class="blue_bold">
<asp:DropDownList ID="ddlRows" runat="server" AutoPostBack="true" CssClass="black_normal"
OnSelectedIndexChanged="ddlRows_SelectedIndexChanged" Width="40px">
<asp:ListItem Value="5">5</asp:ListItem>
<asp:ListItem Value="10" Selected="True">10</asp:ListItem>
<asp:ListItem Value="20">20</asp:ListItem>
<asp:ListItem Value="50">50</asp:ListItem>
</asp:DropDownList>
</span>
<asp:Label ID="lblRecords" runat="server" Text="Records found:" CssClass="black_normal"></asp:Label>
<asp:Label ID="lblTotalRecordsFound" runat="server" CssClass="black_bold"></asp:Label>
</td>
<td align="left" valign="middle" style="height: 17px; width: 10%" nowrap>
<asp:HiddenField ID="txtPageNum" runat="server" />
<asp:HiddenField ID="txtTotalpages" runat="server" />
<asp:Label ID="lblpg" CssClass="black_normal" runat="server"
Text="Page" Visible="false"></asp:Label><asp:Label ID="TotalPages" runat="server" Visible="false"></asp:Label><asp:Label ID="lblStatus" runat="server" CssClass="red_lnk"></asp:Label></td>
<td align="right" style="width: 18%">
</td>
</tr>
<tr height="5px" ><td></td></tr>
<tr align="left" style="padding-top: 3px" valign="middle">
<td colspan="5" style="width: 98%" align="left">
<div id="Gridview" width="100%">
<asp:HiddenField ID="hidColor" runat="server" />
<asp:GridView ID="gvJobShuffling" runat="server" AllowPaging="true" AutoGenerateColumns="false"
CellPadding="0" CellSpacing="1" CssClass="grid_bg" GridLines="None" OnRowDataBound="gvJobShuffling_RowDataBound"
OnSelectedIndexChanging="gvJobShuffling_SelectedIndexChanging" PagerStyle-Width="0px"
PageSize="10" ShowFooter="false" Width="100%" OnRowCancelingEdit="gvJobShuffling_RowCancelingEdit"
OnRowEditing="gvJobShuffling_RowEditing" OnRowUpdating="gvJobShuffling_RowUpdating">
<RowStyle CssClass="row_even" />
<PagerStyle CssClass="hide" />
<SelectedRowStyle CssClass="tble_hdr_not_sltd" />
<HeaderStyle CssClass="tble_hdr_not_sltd" />
<EmptyDataRowStyle CssClass="row_odd" HorizontalAlign="Center" />
<FooterStyle CssClass="hide" />
//From Here i am unable to access the control Id's ie...Imtellisense is not showing.
<EmptyDataTemplate>
<table class="confirmation">
<tr>
<td>
<asp:Label Text="Records not found" ID="lblEmpty" runat="server"></asp:Label>
</td>
</tr>
</table>
</EmptyDataTemplate>
<RowStyle CssClass="row_even" />
<AlternatingRowStyle CssClass="row_odd" />
<Columns>
<asp:TemplateField >
<HeaderTemplate>
Form ID
`` </HeaderTemplate>
<ItemTemplate>
<asp:Label ID="lblBranchID" runat="server" Text='<%# Bind("BranchID")%>'></asp:Label>
<asp:Label ID="lblProcessID" runat="server" Text='<%# Bind("ProcessID")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblBranchID" runat="server" Text='<%# Bind("BranchID")%>'></asp:Label>
<asp:Label ID="lblProcessID" runat="server" Text='<%# Bind("ProcessID")%>'></asp:Label>
</EditItemTemplate>
<ItemStyle Width="0%" />
<HeaderStyle />
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td style="display: none" valign="middle">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td align="left" width="125px">
<a>Bill Number</a>
</td>
<td style="width: 6px">
</td>
</tr>
</table>
</td>
<td id="Img1dsc" align="right" valign="middle">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td align="left" width="125px">
<a>Bill Number</a>
</td>
<td style="width: 6px">
</td>
</tr>
</table>
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table width="100%">
<tr>
<td>
<asp:Label ID="lblJobNumber" runat="server" Text='<%# Bind("JobNumber") %>'></asp:Label>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle Width="10%" />
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td id="Img3asc" align="right" style="display: none" valign="middle">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td align="left" width="70%">
<a>Assign To</a>
</td>
<td style="width: 6px">
</td>
</tr>
</table>
</td>
<td id="Img3dsc" align="right" valign="middle">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td align="left" width="70%">
<a>Assign To</a>
</td>
<td style="width: 6px">
</td>
</tr>
</table>
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table width="100%">
<tr>
<td>
<%# Eval("AssignedToUserName")%>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle Width="10%" />
//Actually in this EditItemTemplate i need to bind the ddlAssignTo.DataSource but this control property is not visible in intellinsense in wcJobsShuffling.ascx.cs
<EditItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" style="padding-left: 3px">
<tr>
<td align="left" valign="middle">
<asp:DropDownList ID="ddlAssignTo" runat="server" OnSelectedIndexChanged="ddlAssignTo_SelectionIndexChanged">
</asp:DropDownList>
</td>
<td align="left" valign="middle" visible="false">
<asp:Label ID="lblSupervisorID" runat="server" Text='<%# Bind("AssignedToUserSupervisorUserID") %>' Visible="false"></asp:Label>
<asp:Label ID="lblJobId" runat="server" Text='<%# Bind("JobID") %>' Visible="false"></asp:Label>
<asp:Label ID="lblAssignedToUserName" runat="server" Text='<%# Bind("AssignedToUserName") %>'
Visible="false"></asp:Label>
</td>
</tr>
</table>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-Width="5%">
<HeaderTemplate>
<table cellpadding="0" cellspacing="0">
<tr>
<td align="right" valign="middle" width="20%">
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table cellpadding="0" cellspacing="0" border="0" style="padding-left: 3px">
<tr>
<td align="right" height="19px" valign="middle">
<asp:ImageButton SkinID="imgButtonEdit" runat="server" ID="imgEdit" ImageAlign="AbsMiddle"
CommandName="Edit" ToolTip="Edit" CausesValidation="false" />
</td>
</tr>
</table>
</ItemTemplate>
<EditItemTemplate>
<table cellpadding="0" cellspacing="0">
<tr>
<td align="right" valign="middle" nowrap>
<asp:ImageButton SkinID="imgButtonUpdate" runat="server" ID="imgUpdate" ImageAlign="AbsMiddle"
CommandName="Update" ValidationGroup="GSave" ToolTip="Update" CausesValidation="false" />
<asp:ImageButton SkinID="imgButtonCancel" runat="server" ID="imgGCancel" ImageAlign="AbsMiddle"
CommandName="Cancel" ToolTip="Cancel" CausesValidation="false" />
</td>
</tr>
</table>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</td>
</tr>
<tr>
<td align="left" valign="middle" width="9%" style="padding-top: 5px">
<asp:ImageButton ID="imgFirstPage1" runat="server" align="absmiddle" border="0" SkinID="imgButtonFirst"
OnClick="imgFirstPage_Click" ToolTip="First" CausesValidation="false" />
<asp:ImageButton ID="imgPrevPage1" runat="server" align="absmiddle" border="0" SkinID="imgButtonPrev"
OnClick="imgPrevPage_Click" ToolTip="Previous" CausesValidation="false" />
<span class="blue_normal">
<asp:Label ID="lblpg1" runat="server" CssClass="blue_normal" align="absmiddle"></asp:Label>
<asp:Label ID="lblSPage1" runat="server" CssClass=" blue_normal" Width="12px" align="absmiddle"></asp:Label>
<asp:Label ID="lblto1" runat="server" Text="of" CssClass="blue_normal" Width="12px"
align="absmiddle"></asp:Label>
<asp:Label ID="lblEPage1" runat="server" CssClass="blue_normal" Width="12px" align="absmiddle"></asp:Label>
<asp:Label ID="lblOf1" runat="server" Text="of" CssClass="blue_normal" Visible="false"
align="absmiddle"></asp:Label>
<asp:Label ID="lblTotPages" runat="server" CssClass=" blue_normal" align="absmiddle"></asp:Label>
</span>
<asp:ImageButton ID="imgNextPage1" runat="server" align="absmiddle" border="0" SkinID="imgButtonNext"
OnClick="imgNextPage_Click" ToolTip="Next" CausesValidation="false" />
<asp:ImageButton ID="imgLastPage1" runat="server" align="absmiddle" border="0" SkinID="imgButtonNext"
OnClick="imgLastPage_Click" ToolTip="Last" CausesValidation="false" />
<asp:HiddenField ID="hidSort" runat="server" />
<asp:HiddenField ID="hidImageSort1" runat="server" />
<asp:HiddenField ID="hidImageSort2" runat="server" />
</td>
</tr>
</table>
</asp:Panel>

Page is not refreshing on button click

In my project there are number of page inheriting the same masterpage and all are responding except 1 or 2 page, there is no change in code every thing is right.
I inserted breakpoint on button click button no effect.
How can i check the Problem.
Please help
Here is the code of my page
<%# Page Title="Product Stock" Language="C#" MasterPageFile="~/admin/AdminMaster.master" AutoEventWireup="true" CodeFile="ProductStock.aspx.cs" Inherits="admin_ProductStock" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<style type="text/css">
.auto-style3 {
width: 259px;
}
.auto-style4 {
width: 479px;
}
.auto-style5 {
height: 65px;
}
.auto-style6 {
width: 479px;
height: 65px;
}
.auto-style7 {
height: 74px;
}
.auto-style8 {
width: 479px;
height: 74px;
}
.auto-style9 {
width: 69px;
}
.auto-style10 {
height: 74px;
width: 68px;
}
.auto-style11 {
height: 65px;
width: 68px;
}
.auto-style12 {
width: 68px;
}
.auto-style13 {
width: 451px;
}
.auto-style14 {
width: 451px;
height: 74px;
}
.auto-style15 {
width: 451px;
height: 65px;
}
</style>
</asp:Content>
<asp:Content ID="Content2" runat="server" contentplaceholderid="ContentPlaceHolder1">
<table style="width:100%;">
<tr>
<td>
<asp:Image ID="Image1" runat="server" Height="123px" ImageUrl="~/admin/images/insert.jpg" Width="158px" />
</td>
<td class="auto-style4">
<asp:Label ID="lblinsertion" runat="server" BackColor="#FFFF66" Font-Bold="True" Font-Italic="True" Font-Names="Euphemia" Font-Size="XX-Large" Font-Underline="True" ForeColor="#009900" Text="Insert Product Stock Information"></asp:Label>
</td>
<td class="auto-style12"> </td>
</tr>
<tr>
<td class="auto-style5">
<asp:Label ID="lblproductname" runat="server" Text="Product Name" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td class="auto-style6">
<asp:DropDownList ID="ddlprdctname" runat="server" Width="235px" ValidationGroup="vg1"></asp:DropDownList>
</td>
<td class="auto-style11">
<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ControlToValidate="ddlprdctname" ErrorMessage="Select Product Name" ValidationGroup="vg1"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblquantity" runat="server" Text="Quantity" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td class="auto-style4">
<asp:TextBox ID="txtquantity" runat="server" Width="235px" ValidationGroup="vg1"></asp:TextBox>
</td>
<td class="auto-style12">
<asp:RequiredFieldValidator ID="RequiredFieldValidator8" runat="server" ControlToValidate="txtquantity" ErrorMessage="Enter Quantity" ValidationGroup="vg1"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblstocktype" runat="server" Text="Stock Type" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td class="auto-style4">
<asp:DropDownList ID="ddlstocktype" runat="server" Width="235px" Height="42px" ValidationGroup="vg1"></asp:DropDownList>
</td>
<td class="auto-style12">
<asp:RequiredFieldValidator ID="RequiredFieldValidator9" runat="server" ControlToValidate="ddlstocktype" ErrorMessage="Please Enter Stock Type" ValidationGroup="vg1"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblstockdate" runat="server" Text="Stock Date" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td class="auto-style4">
<asp:TextBox ID="txtstockdate" runat="server" ValidationGroup="vg1" Height="55px" Width="235px"></asp:TextBox>
</td>
<td class="auto-style12">
<asp:Label ID="lbldateformat" runat="server" Text="dd/mm/yy"></asp:Label>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="txtstockdate" ErrorMessage="Please Enter Stock Date" ValidationGroup="vg1"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="auto-style3"></td>
<td class="auto-style4">
<asp:Button ID="btnInsert" runat="server" Text="Insert" Width="125px" ValidationGroup="vg1" OnClick="btnInsert_Click" />
</td>
<td>
<asp:Button ID="check" runat="server" Text="Lets Check" />
</td>
<td class="auto-style12"> </td>
</tr>
<tr>
<td colspan="3">
<asp:Label ID="lblmsg" runat="server" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
</tr>
</table>
</asp:Content>
<asp:Content ID="Content3" runat="server" contentplaceholderid="ContentPlaceHolder2">
<asp:Panel ID="ViewPanel" runat="server">
<table style="width:100%;">
<tr>
<td class="auto-style3">
<asp:Image ID="Image2" runat="server" Height="100px" ImageUrl="~/admin/images/view.jpg" Width="133px" />
</td>
<td>
<asp:Label ID="Label1" runat="server" BackColor="Yellow" Font-Bold="True" Font-Italic="True" Font-Names="Euphemia" Font-Size="XX-Large" Font-Underline="True" ForeColor="#009900" Text="View All Information"></asp:Label>
</td>
<td> </td>
</tr>
</table>
<asp:GridView ID="gridview" AutoGenerateColumns="false" runat="server" style="margin-left: 0px" AllowPaging="True" AllowSorting="True" CellPadding="3" Height="238px" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="Solid" BorderWidth="1px" CellSpacing="2" OnRowCommand="gridview_RowCommand" OnPageIndexChanging="gridview_PageIndexChanging">
<Columns>
<asp:BoundField HeaderText="Stock ID" DataField="StockID" />
<asp:BoundField HeaderText="Product Name" DataField="ProductID" />
<asp:BoundField HeaderText="Quantity" DataField="Quantity" />
<asp:BoundField HeaderText="Stock Type" DataField="StockType" />
<asp:BoundField HeaderText="Stock Date" DataField="StockDate" />
<asp:TemplateField HeaderText="Delete Record">
<ItemTemplate>
<asp:Button ID="delete" OnClientClick="return confirm('Are You Sure To Delete The Record?')" Text="Delete This Record" CommandName="del" CommandArgument='<%# Eval("StockID") %>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit Record">
<ItemTemplate>
<asp:Button ID="update" CommandName="upd" Text="Edit this Record" CommandArgument='<%# Eval("StockID") %>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
<HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
<PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
<RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#FFF1D4" />
<SortedAscendingHeaderStyle BackColor="#B95C30" />
<SortedDescendingCellStyle BackColor="#F1E5CE" />
<SortedDescendingHeaderStyle BackColor="#93451F" />
</asp:GridView>
<asp:Label ID="lblMessage" runat="server" Text=""></asp:Label>
</asp:Panel>
<br />
</asp:Content>
<asp:Content ID="Content4" ContentPlaceHolderID="ContentPlaceHolder3" Runat="Server">
<asp:Label ID="lblupdate" runat="server" Text="Select the record to be updated" Font-Names="Segoe Print" Font-Size=20></asp:Label>
<asp:Panel ID="UpdatePanel" runat="server">
<table style="width:100%;">
<tr>
<td>
<asp:Image ID="Image3" runat="server" Height="123px" ImageUrl="~/admin/images/insert.jpg" Width="158px" />
</td>
<td >
<asp:Label ID="lblupdupdation" runat="server" BackColor="#FFFF66" Font-Bold="True" Font-Italic="True" Font-Names="Euphemia" Font-Size="XX-Large" Font-Underline="True" ForeColor="#009900" Text="Update Product Stock Information"></asp:Label>
</td>
<td > </td>
</tr>
<tr>
<td>
<asp:Label ID="lblupdstockid" runat="server" Text="Quantity" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtupdstockid" runat="server" ReadOnly="true" Width="235px"></asp:TextBox>
</td>
</tr>
<tr>
<td >
<asp:Label ID="lblupdproductname" runat="server" Text="Product Name" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td >
<asp:DropDownList ID="ddlupdprdctname" runat="server" Width="235px"></asp:DropDownList>
</td>
<td >
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="ddlupdprdctname" ErrorMessage="Enter Product Name"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblupdquantity" runat="server" Text="Quantity" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtupdquantity" runat="server" Width="235px"></asp:TextBox>
</td>
<td >
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtupdquantity" ErrorMessage="Enter Quantity"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblupdstocktype" runat="server" Text="Stock Type" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td >
<asp:DropDownList ID="ddlupdstocktype" runat="server" Width="235px"></asp:DropDownList>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="ddlupdstocktype" ErrorMessage="Please Enter Stock Type"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblupdstockdate" runat="server" Text="Stock Date" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtupdstockdate" runat="server" ValidationGroup="vg1" Height="16px" Width="235px"></asp:TextBox>
</td>
<td >
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="txtupdstockdate" ErrorMessage="Please Enter Stock Date" ValidationGroup="vg1"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td></td>
<td >
<asp:Button ID="btnUpdate" runat="server" Text="Update" Width="125px" ValidationGroup="vg1" OnClick="btnUpdate_Click" />
</td>
<td > </td>
</tr>
<tr>
<td colspan="3">
<asp:Label ID="lblupdmsg" runat="server" Font-Bold="True" Font-Italic="True" Font-Size="Medium"></asp:Label>
</td>
</tr>
</table>
</asp:Panel>
</asp:Content>
My Client side code for button
protected void btnInsert_Click(object sender, EventArgs e)
{
try
{
int productID, quantity;
string stockType;
DateTime stockDate;
productID = int.Parse(ddlprdctname.SelectedValue);
quantity = int.Parse(txtquantity.Text.Trim());
stockType = ddlstocktype.SelectedValue.ToString().Trim();
stockDate = DateTime.Parse(txtstockdate.Text.Trim());
ProductStock prdctstock = new ProductStock();
prdctstock.ProductID = productID;
prdctstock.Quantity = quantity;
prdctstock.StockType = stockType;
prdctstock.StockDate = stockDate;
if (new InsertAction().InsertData(prdctstock))
{
lblmsg.Text = "Inserted Sucessfully";
ViewPanel.Visible = true;
}
else
{
lblmsg.Text = "Please Check all the fields";
}
BindGridView();
ProductInfo prdctinfo = new ProductInfo();
if (stockType == "In")
{
prdctinfo.Quantity += quantity;
}
if (stockType == "Out")
{
prdctinfo.Quantity -= quantity;
}
}
catch (Exception ex)
{
if (ex is FormatException)
{
lblmsg.Text = "Character value are not allowed";
}
else
{
lblmsg.Text = ex.Message;
}
}
}

Put the breakpoint somewhere where it hits. Look at the call stack and step over to the point when you find why it is not going to the method you want to trigger.
Can't do much without more information.
Hope this helps

I saw few unwanted code's
1) please remove the ValidationGroup="vg1" in your all asp.net controls except button .
2) Don't use panel , some time the button click not working on using panel control, so please use table instead of panel .(or remove the asp:panel control )
3) and must check the button click event same as server side .
4) If you give me our server side code then i will response you !!

Changing datagridview style under condition

Here is a code that I have in one of my ASPX pages:
<asp:GridView
ID="GridView1"
runat="server"
AutoGenerateColumns="False"
HorizontalAlign="Center"
ShowHeader="False"
DataSourceID="sqlTEST1">
<Columns>
<asp:BoundField DataField="stale" Visible="false" />
<asp:BoundField DataField="bad" Visible="false" />
<asp:BoundField DataField="ping" Visible="false" />
<asp:BoundField DataField="max_tags" Visible="false" />
<asp:BoundField DataField="aval_chck" Visible="false" />
<asp:TemplateField>
<ItemTemplate>
<%
if (Eval("aval_chck").ToString()=="1")
{
<table border="0" cellpadding="2" cellspacing="1">
<tr>
<td class="rowsBLACKMAINOFF" colspan="3"><asp:Label ID="Label2" runat="server" Text='<%# Bind("instalacja") %>'></asp:Label></td>
</tr>
<tr>
<td class="rowsBLACKROWOFF"><asp:Label ID="Label2" runat="server" Text='<%# Bind("stale") %>'></asp:Label></td>
<td class="rowsBLACKROWOFF"><asp:Label ID="Label3" runat="server" Text='<%# Bind("bad") %>'></asp:Label></td>
<td class="rowsBLACKROWOFF"><asp:Label ID="Label4" runat="server" Text='<%# Bind("ping") %>'></asp:Label></td>
</tr>
</table>
}
else
{
<table border="0" cellpadding="2" cellspacing="1">
<tr>
<td class="rowsBLACKMAIN" colspan="3"><asp:Label ID="Label2" runat="server" Text='<%# Bind("instalacja") %>'></asp:Label></td>
</tr>
<tr>
<td class="rowsNORMALc"> </td>
<td class="rowsNORMALc"> </td>
<td class="rowsNORMALc"> </td>
</tr>
</table>
}
%>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I know it doesn't work at all.
I only wrote logically what I want to achieve
I would like to make that statement work or do something similar to that.
Any ideas?

Try GridView.RowDataBound Event
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdatabound.aspx

ASP.NET: How do "update" a field in the <EditItemTemplate> that has a null value in the database (SQL)

I am using a FormView control. The allows me to update records in the database. However, when a database field is null I can not update the field on the form. It works fine when the field is not a null value. I am not using any code behind (C#) to bind the data or manipulate the data.
I have read that when there is a null value in the database that there is no record in the "dataset". Can anyone show me how to bind a value in the form when there is a null value previously.
Thanks,
J
...
Total Records
<div style="width:1024px; text-align: justify; overflow:hidden; padding-top:0px">
<asp:GridView ID="DealershipGrid"
runat="server"
AllowPaging="True"
AllowSorting="True"
AutoGenerateColumns="False"
CellPadding="2"
DataKeyNames="Dealership_Id"
DataSourceID="DealershipsDS"
ForeColor="#333333"
GridLines="None"
Font-Names="Tahoma"
Font-Size="9pt"
Font-Bold="False"
Width="1024px" PageSize="10">
<PagerSettings Position="TopAndBottom" />
<FooterStyle BackColor="#8b1111" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#FFFFFF" ForeColor="#333333" Font-Names="Tahoma" Font-Size="8pt" />
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField
DataField="Dealership_Id"
HeaderText="ID"
InsertVisible="False"
ReadOnly="True"
SortExpression="Dealership_Id"
HeaderStyle-Width="3%"
ItemStyle-Width="3%"
FooterStyle-Width="3%" >
<FooterStyle Width="3%"></FooterStyle>
<HeaderStyle Width="3%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="3%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_Name"
HeaderText="Dealership"
SortExpression="Dealership_Name"
HeaderStyle-Width="18%"
ItemStyle-Width="18%"
FooterStyle-Width="18%">
<FooterStyle Width="18%"></FooterStyle>
<HeaderStyle Width="18%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="18%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_BranchName"
HeaderText="Branch"
SortExpression="Dealership_BranchName"
HeaderStyle-Width="18%"
ItemStyle-Width="18%"
FooterStyle-Width="18%">
<FooterStyle Width="18%"></FooterStyle>
<HeaderStyle Width="18%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="18%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_Phone1"
HeaderText="Phone"
SortExpression="Dealership_Phone1"
HeaderStyle-Width="9%"
ItemStyle-Width="9%"
FooterStyle-Width="9%" >
<FooterStyle Width="9%"></FooterStyle>
<HeaderStyle Width="9%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="9%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_Email1"
HeaderText="Email"
SortExpression="Dealership_Email1"
HeaderStyle-Width="37%"
ItemStyle-Width="37%"
FooterStyle-Width="37%">
<FooterStyle Width="37%"></FooterStyle>
<HeaderStyle Width="37%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="37%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_State"
HeaderText="State"
SortExpression="Dealership_State"
HeaderStyle-Width="5%"
ItemStyle-Width="5%"
FooterStyle-Width="5%" >
<FooterStyle Width="5%"></FooterStyle>
<HeaderStyle Width="5%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="5%"></ItemStyle>
</asp:BoundField>
<asp:BoundField
DataField="Dealership_ZipCode"
HeaderText="Zip Code"
SortExpression="Dealership_ZipCode"
HeaderStyle-Width="6%"
ItemStyle-Width="6%"
FooterStyle-Width="6%" >
<FooterStyle Width="6%"></FooterStyle>
<HeaderStyle Width="6%" HorizontalAlign="Left"></HeaderStyle>
<ItemStyle Width="6%"></ItemStyle>
</asp:BoundField>
</Columns>
<PagerStyle BackColor="White" ForeColor="Maroon" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="False" ForeColor="#333333" />
<HeaderStyle BackColor="#AB1414" Font-Bold="True" ForeColor="White" Font-Names="Tahoma" Font-Size="9pt" HorizontalAlign="Left" />
<EditRowStyle BackColor="#999999" ForeColor="Black" />
<AlternatingRowStyle BackColor="Silver" ForeColor="Black" />
</asp:GridView>
ConnectionString="<%$ ConnectionStrings:driveaway2day2 %>"
SelectCommand="SELECT [Dealership_Id], [Dealership_Name], [Dealership_BranchName], [Dealership_Phone1], [Dealership_Email1], [Dealership_State], [Dealership_ZipCode] FROM [CAR_Dealership] ORDER BY [Dealership_Name]" EnableViewState="False" OnSelected="DealershipsDS_Selected" >
</asp:SqlDataSource>
Dealership Details
Dealership ID
<%# Eval("Dealership_Id")%>
Email 1
<%# Eval("Dealership_Email1")%>
Dealership
<%# Eval("Dealership_Name")%>
Email 2
<%# Eval("Dealership_Email2")%>
Branch Name
<%# Eval("Dealership_BranchName")%>
Email 3
<%# Eval("Dealership_Email3")%>
Phone 1
<%# Eval("Dealership_Phone1")%>
Address
<%# Eval("Dealership_Address")%>
Phone 2
<%# Eval("Dealership_Phone2")%>
City
<%# Eval("Dealership_City")%>
Phone 3
<%# Eval("Dealership_Phone3")%>
State
<%# Eval("Dealership_State")%>
Fax
<%# Eval("Dealership_Fax")%>
Zip Code
<%# Eval("Dealership_ZipCode")%>
<tr>
<td colspan="4" style="padding-top:5px;height:15px; background-color:#E2DED6;"> </td>
</tr>
<tr>
<td colspan="4" style="padding-top:5px;height:15px;"> </td>
</tr>
<tr>
<td colspan="2" style="padding-top:5px;">
<asp:Button ID="btnEdit" runat="Server" CommandName="Edit" Text="Edit" Font-Names="Tahoma" Font-Size="10px" />
<asp:Button ID="btnInsert" runat="Server" CommandName="New" Text="New" Font-Names="tahoma" Font-Size="10px" />
<asp:Button ID="btnDelete" runat="Server" CommandName="Delete" Text="Delete" OnClientClick="return confirm('Are you sure to Delete?');" Font-Size="10px" Font-Names="tahoma" />
</td>
</tr>
</table>
</ItemTemplate>
<EditItemTemplate>
<table border="0" width="1024px" style="padding-top:0px;">
<tr>
<td height="20px" colspan="4" style="padding-top:0px;"> </td>
</tr>
<tr>
<td colspan="4" style="padding-left:3px;height:20px; background-color:#E2DED6; font-family: Tahoma; font-size:12px; color:#000000; font-weight:bold; width:1024px;">Dealership Details</td>
</tr>
<tr>
<td>
<table width="800px">
<tr>
<td colspan="4" style="padding-top:5px;height:5px;"> </td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Dealership ID</td>
<td style="padding-top:5px;" width="300px"><%# Eval("Dealership_Id")%></td>
<td style="padding-top:5px;" width="100px">Email 1</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox1" runat="Server" Text='<%# Bind("Dealership_Email1")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Dealership</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox2" runat="Server" Text='<%# Bind("Dealership_Name")%>'>
</asp:TextBox></td>
<td style="padding-top:5px;" width="100px">Email 2</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox3" runat="Server" Text='<%# Bind("Dealership_Email2")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Branch Name</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox4" runat="Server" Text='<%# Bind("Dealership_BranchName")%>'>
</asp:TextBox>
</td>
<td style="padding-top:5px;" width="100px">Email 3</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox5" runat="Server" Text='<%# Bind("Dealership_Email3")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Phone 1</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox6" runat="Server" Text='<%# Bind("Dealership_Phone1")%>'>
</asp:TextBox>
</td>
<td style="padding-top:5px;" width="100px">Address</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox7" runat="Server" Text='<%# Bind("Dealership_Address")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Phone 2</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox8" runat="Server" Text='<%# Bind("Dealership_Phone2")%>'>
</asp:TextBox>
</td>
<td style="padding-top:5px;" width="100px">City</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox9" runat="Server" Text='<%# Bind("Dealership_City")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Phone 3</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox10" runat="Server" Text='<%# Bind("Dealership_Phone3")%>'>
</asp:TextBox>
</td>
<td style="padding-top:5px;" width="100px">State</td>
<td style="padding-top:5px;" width="300px">
<asp:DropDownList class="aclDetDD" ID="myDropDownList" runat="server"
AppendDataBoundItems="True"
DataSourceID="StatesDS"
DataValueField="Dealership_State"
DataTextField="name"
SelectedValue='<%#Bind("Dealership_State") %>'>
<asp:ListItem Value="">Select a State...
</asp:ListItem>
</asp:DropDownList>
<asp:XmlDataSource ID="StatesDS" runat="server" DataFile="~/Ddl/States.xml">
</asp:XmlDataSource>
</td>
</tr>
<tr>
<td style="padding-top:5px;" width="100px">Fax</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox12" runat="Server" Text='<%# Bind("Dealership_Fax")%>'>
</asp:TextBox>
</td>
<td style="padding-top:5px;" width="100px">Zip Code</td>
<td style="padding-top:5px;" width="300px">
<asp:TextBox class="aclDetTxt" ID="TextBox13" runat="Server" Text='<%# Bind("Dealership_ZipCode")%>'>
</asp:TextBox>
</td>
</tr>
<tr>
<td colspan="4" style="padding-top:5px;height:5px;"> </td>
</tr>
</tr>
</table>
</td>
<tr>
<td colspan="4" style="padding-top:5px;height:15px; background-color:#E2DED6;"> </td>
</tr>
<tr>
<td colspan="4" style="padding-top:5px;height:15px;"> </td>
</tr>
<asp:RequiredFieldValidator ID="req1" runat="Server" ControlToValidate="TextBox1" ErrorMessage="Email 1 is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="Server" ControlToValidate="TextBox2" ErrorMessage="Dealership is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="Server" ControlToValidate="TextBox6" ErrorMessage="Phone 1 is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="Server" ControlToValidate="TextBox7" ErrorMessage="Address is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="Server" ControlToValidate="TextBox9" ErrorMessage="City is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="Server" ControlToValidate="TextBox13" ErrorMessage="Zip Code is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="Server" ControlToValidate="TextBox4" ErrorMessage="Branch/Location is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="Server" ControlToValidate="myDropDownList" ErrorMessage="State is Required" Text="Enter Correct Information.">
</asp:RequiredFieldValidator>
<tr>
<td colspan="2" style="padding-top:5px;">
<asp:Button ID="btnUpdate" runat="Server" CommandName="Update" Text="Update" Font-Names="tahoma" Font-Size="10px" />
<asp:Button ID="Button1" runat="Server" CommandName="Cancel" Text="Cancel" CausesValidation="False" Font-Names="tahoma" Font-Size="10px" />
</td>
</tr>
<asp:ValidationSummary ID="ValidationSummary" runat="Server" ShowMessageBox="true" />
</table>
</EditItemTemplate>
Dealership Details
Dealership ID
<%# Eval("Dealership_Id")%>
Email 1
'>
Dealership
'>
Email 2
'>
Branch Name
'>
Email 3
'>
Phone 1
'>
Address
'>
Phone 2
'>
City
'>
Phone 3
'>
State

You might have to set null fields to default values in your dataset.