I need to hide columns in GridView Then access the values of these in the GridViewSelectedIndexChanged using vb.net. When I set DataBound columns is false cant acces the values. Please help.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" BorderStyle="Outset" CellPadding="4" DataSourceID="odsA02_Tracking"
Font-Size="Small" ForeColor="#333333" GridLines="Vertical" Style="border-right: #0000ff thin solid;
table-layout: auto; border-top: #0000ff thin solid; font-size: x-small; border-left: #0000ff thin solid;
border-bottom: #0000ff thin solid; font-family: Arial; border-collapse: separate" PageSize="30">
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="Since" HeaderText="Submit
Date" ReadOnly="True" SortExpression="Since" />
<asp:BoundField DataField="Started_By" HeaderText="Submitted By" SortExpression="Started_By" />
<asp:BoundField DataField="FullName" HeaderText="Client Name" ReadOnly="True" SortExpression="FullName" />
<asp:BoundField DataField="Product_Desc" HeaderText="Product" ReadOnly="True" SortExpression="Product_Desc" />
<asp:BoundField DataField="Branch_List" HeaderText="Branch" ReadOnly="True" SortExpression="Branch_List" />
<asp:BoundField DataField="Event_AssignedID" HeaderText="Assigned To" ReadOnly="True"
SortExpression="Event_AssignedID" />
<asp:BoundField DataField="DaysElapsed" HeaderText="Days Open" ReadOnly="True" SortExpression="DaysElapsed" />
<asp:BoundField DataField="Status" HeaderText="Status" SortExpression="Status" />
<asp:BoundField DataField="Instance_ID" HeaderText="Instance_ID" SortExpression="Instance_ID" Visible=True />
<asp:TemplateField Visible=False>
<ItemTemplate>
<asp:HiddenField ID=hdnSeqID Value='<%#Eval("Seq_ID") %>' runat=server/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="FormCode" Visible=false>
<ItemTemplate>
<asp:HiddenField ID=hdnFormCode Value='<%#Eval("Form_Code") %>' runat=server/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged
Dim Instance_ID As String
Dim Seq_ID As String
Dim Form_Code As String
Dim PARMS As String
Dim DestinationURL As String
Dim DestinationParms As String
'fill text box's with values from selected row
' store values from selected row
Dim seqID As String = CType(GridView1.SelectedRow.FindControl("hdnSeqID"), HiddenField).Value
Dim formCode As String = CType(GridView1.SelectedRow.FindControl("hdnFormCode"), HiddenField).Value
End Sub
