I have a GridView with some data and a couple LinkButton columns. If the user doesn't have a specific role, I remove one of the LinkButton columns from the GridView.
My problem is that when I remove the column, the RowCommand event won't fire anymore and all the LinkButtons disappear when I click them.
Note: I'm not re-binding the grid on PostBack, I'm not disabling ViewState, and I tried setting CausesValidation="false"
with no change. Everyone I've found online with this problem has had one of those issues.
If I comment out the code that removes the column, everything works without issue.
EDIT: If I hide the column instead of removing it with gvMyGrid.Columns(0).Visible = False
, everything works.
Why would removing the column prevent that event from firing?
Here's my GridView:
<asp:GridView ID="gvMyGrid" runat="server" Visible="true" EmptyDataText="Nothing to show." AutoGenerateColumns="false" ShowHeaderWhenEmpty="true" Width="100%" AllowSorting="True">
<HeaderStyle Font-Bold="True" ForeColor="White" Height="15px" BackColor="#46596b" Wrap="False"></HeaderStyle>
<Columns>
<asp:TemplateField HeaderText="">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="25" />
<ItemTemplate>
<asp:LinkButton ID="lnkFirst" CommandName="FirstCommand" CommandArgument='<%# Eval("MyID") %>' runat="server" Text='First'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="data1" HeaderText="Data1"><ItemStyle Width="70px"></ItemStyle></asp:BoundField>
<asp:BoundField DataField="data2" HeaderText="Data2"></asp:BoundField>
<asp:TemplateField HeaderText="">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="25" />
<ItemTemplate>
<asp:LinkButton ID="lnkSecond" CommandName="SecondCommand" CommandArgument='<%# Eval("MyID") %>' runat="server" Text='Second'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
In my code behind:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
If Session("SpecialRole") <> "First" Then
gvMyGrid.Columns.RemoveAt(0) 'Row Command fires if I comment this out
End If
BindMyGrid()
End If
End Sub