Gridview edit not working - asp.net

Question

I have the following gridview:
<asp:GridView ID="GrdAll" runat="server" AutoGenerateColumns="false" ShowHeader="false"
Width="40%" GridLines="None" CellPadding="2" CellSpacing="2">
<AlternatingRowStyle CssClass="AltColor22" />
<RowStyle CssClass="AltColor21" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<table width="100%" class="TableBorder">
<tr>
<td valign="top" align="left">
<asp:Label ID="lblName" runat="server" />
<hr />
</td>
</tr>
<tr>
<td valign="top" align="left" class="TableBorder">
<asp:GridView ID="GrdContent" runat="server" AutoGenerateColumns="False"
Width="100%" GridLines="None" CellPadding="2" CellSpacing="2"
OnRowDataBound="GrdContent_RowDataBound" OnRowEditing="GrdContent_RowEditing"><%----%>
<Columns>
<asp:TemplateField HeaderText="Kiosk ID" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblKiosID" runat="server"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtKiosk" runat="server" Text ='<%#Eval("HBEmailID") %>'></asp:TextBox>
</EditItemTemplate>
<HeaderStyle HorizontalAlign="Left" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Email ID" HeaderStyle-HorizontalAlign="Left">
<HeaderStyle HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblEmail" runat="server"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtEmail" runat="server" Text ='<%#Eval("HBEmailID") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Edit"
Text="Edit" ></asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="LinkButton3" runat="server" CommandName="Update"
Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CommandName="Cancel"
Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
In this, edit functionality is not working.
In clicking of edit button, it shows me nothing. (It should show me textbox to edit)
Following is code:
Protected Sub GrdContent_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs)
Dim row As GridViewRow = DirectCast(TryCast(sender, Control).Parent.Parent, GridViewRow)
Dim index As Integer = row.RowIndex
CType(row.FindControl("GrdContent"), GridView).EditIndex = e.NewEditIndex
DBName = CType(row.FindControl("lblName"), Label).Text
bindContentGrid(CType(row.FindControl("GrdContent"), GridView), DBName)
End Sub
Please help me, it does not gives me error, but it also not showing me textbox to edit.

Answer 1

The issue could be on the following code
bindContentGrid(CType(row.FindControl("GrdContent"), GridView), DBName)
If that code does not return any records, then nothing will be displayed. Make sure it is returning some rows.