[Solved] Getting a Gridcolumn in a RadGrid to be hidden

[Corey]

Hello everyone,

Here is what i am trying to do.

I am trying to hide a Gridcolumn in a RadGrid.

I have found the code to do it... i just don't seem to get it to fire when i am first loading the Grid.

Here is my setup

Radtabstrip (6 tabs) with RadMultipage with 6 RadPageviews
each tab(views) has a RadGrid in it.  Each one of the grids has a maximum amount of columns that can be displayed and i have a check box control that limits what is displayed.

I have the code that iterates through the checkboxlist and hides the columns... I just cannot get this code to fire when the page first loads...

Where should i be putting this code in (right now it is in the checkboxlist selecteditem changed event... which is good ... but i also need this filtering done on first page load.

Thanks for any ideas...

Corey

[Princy]

Hello Corey,

You can check out the following code and see if it suits your requirement:
aspx:

<telerik:RadTabStrip runat="server" ID="TabStrip1" MultiPageID="Multipage1" SelectedIndex="0">
                <Tabs>
                    <telerik:RadTab runat="server" Text="Tab1" PageViewID="PageView1">
                    </telerik:RadTab>
                    <telerik:RadTab runat="server" Text="Tab2" PageViewID="PageView2">
                    </telerik:RadTab>
                </Tabs>
            </telerik:RadTabStrip>
            <telerik:RadMultiPage runat="server" ID="Multipage1" SelectedIndex="0" RenderSelectedPageOnly="false">
                <telerik:RadPageView runat="server" ID="PageView1">
                    <asp:CheckBoxList ID="CheckBoxList1" AutoPostBack="true" runat="server" OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged">
                        <asp:ListItem Text="CompanyName" Value="CompanyName"></asp:ListItem>
                        <asp:ListItem Text="ContactName" Value="ContactName"></asp:ListItem>

                    </asp:CheckBoxList>
                    <telerik:RadGrid ID="RadGrid1" AllowPaging="true" PageSize="5"
                        DataSourceID="SqlDataSource1" AutoGenerateColumns="true" runat="server" OnPreRender="RadGrid1_PreRender" >
                        <MasterTableView>
                          ..
                        </MasterTableView>
                    </telerik:RadGrid></telerik:RadPageView>
                <telerik:RadPageView ID="PageView2" runat="server">
                  ....
                </telerik:RadPageView>
            </telerik:RadMultiPage>

c#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        foreach (ListItem item in CheckBoxList1.Items)
        {
            if (!item.Selected)
                RadGrid1.MasterTableView.GetColumn(item.Value).Visible = false;
        }
    }

protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        foreach (ListItem item in CheckBoxList1.Items)
        {
            if (item.Selected)
            {
                RadGrid1.MasterTableView.GetColumn(item.Value).Visible = true;
                RadGrid1.Rebind();
            }
        }
    }

Thanks
Princy.