My gridview is like this but I am getting error when I select view button to find primary key value column on selected index changed. Please help me to solve the issue.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView1_SelectedIndexChanged">
<Columns >
<asp:TemplateField >
<ItemTemplate >
<asp:Button ID="btnViewComments" Text ="View Comments" runat ="server" CommandName ="select" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField ="forumId" Visible ="false" />
<%--<asp:CommandField ButtonType ="Button" ShowSelectButton ="true" SelectText ="View Comments"/>--%>
<asp:TemplateField HeaderText ="Question">
<ItemTemplate >
<asp:TextBox ID ="txtQuestion" Text ='<%#Eval("question")%>' runat ="server" TextMode ="MultiLine" Height="100" Width ="350"></asp:TextBox>
<%-- <%#Eval("question")%>--%>
</ItemTemplate>
<%--<EditItemTemplate >
<asp:TextBox ID ="txtQuestion" Text ='<%#Eval("question")%>' runat ="server" TextMode ="MultiLine" ></asp:TextBox>
</EditItemTemplate>--%>
</asp:TemplateField>
<asp:TemplateField HeaderText="Poster Name">
<ItemTemplate >
<%#Eval("posterName") %>
</ItemTemplate>
<EditItemTemplate >
<asp:Label ID ="lblPosterName" Text ='<%#Eval("posterName") %>' runat ="server" ></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date">
<ItemTemplate >
<%#Eval("dateTim") %>
</ItemTemplate>
<EditItemTemplate >
<asp:Label ID ="lblDateTime" Text ='<%#Eval("dateTim") %>' runat ="server" ></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
my code is.....
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
Int64 forumId = (Int64)GridView1.SelectedValue;
Session["forumId"] = forumId;
Response.Redirect("Thread.aspx");
}
catch (Exception)
{
throw;
}
}
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