Posts tagged gridview

There is a problem when we set BoundField visibility to false, the column isn’t rendered to the client. A work around would be to use a HiddenField within a TemplateField instead.

<asp:TemplateField HeaderText="MemberID">
    <ItemTemplate>
        <asp:LinkButton ID="lbtn_memberid" runat="server" CommandName="GetMemberID" CommandArgument='<%# DataBinder.Eval(Container, "DataItem.memberid") %>'
            Text='<%# DataBinder.Eval(Container, "DataItem.memberid") %>'></asp:LinkButton>
    </ItemTemplate>
</asp:TemplateField>

<asp:TemplateField>
    <ItemTemplate>
        <asp:HiddenField ID="fieldid" runat="server" Value='<%# Eval("fieldname") %>' />
    </ItemTemplate>
</asp:TemplateField>

Back Code:

    Protected Sub gridview1_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gridview1.RowCommand

        If e.CommandName = "GetMemberID" Then

            Session("GetMemberID") = e.CommandArgument.ToString()

            Dim gv As GridViewRow = DirectCast(DirectCast(e.CommandSource, LinkButton).NamingContainer, GridViewRow)

            Dim i As Integer = gv.RowIndex

            Dim row As GridViewRow = gridview1.Rows(i)

            Dim hidden As HiddenField = DirectCast(row.Cells(0).FindControl("fieldid"), HiddenField)

            Dim fieldid As Integer = CInt(hidden.Value)

        End If

    End Sub