[Solved] Bind RadDropDown in the filtertemplate in codebehind

[Mahesh]

Hi All,

I need to put a fdropdown filter in the radgrid. I tried to follow the radgrid demo. But in my case, i need to bind the filter dropdown only in codebehind.

The grid is bound in the needdatasource with an arraylist.

the aspx code is like below,

<telerik:GridTemplateColumn UniqueName="Column1" SortExpression="Column1" HeaderStyle-ForeColor="#245E9E"
HeaderText="Column 1" ItemStyle-Wrap="true" Resizable="true" AutoPostBackOnFilter="true"
CurrentFilterFunction="EqualTo" DataField="Column1">
<FilterTemplate>
<telerik:RadComboBox ID="RadComboBoxColumn1" DataTextField="Column1" DataValueField="Column1"
Height="200px" AppendDataBoundItems="true" 
SelectedValue='<%# ((GridItem)Container).OwnerTableView.GetColumn("Column1").CurrentFilterValue %>' 
runat="server" OnClientSelectedIndexChanged="TitleIndexChanged">
<Items>
<telerik:RadComboBoxItem Text="All" />
</Items>
</telerik:RadComboBox>
<telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">
<script type="text/javascript">
function TitleIndexChanged(sender, args)
{
var tableView = $find("<%# ((GridItem)Container).OwnerTableView.ClientID %>");
tableView.filter("Column1", args.get_item().get_value(), "EqualTo");
}
</script>
</telerik:RadScriptBlock>
</FilterTemplate>
<ItemTemplate>
<asp:Label ID="LblColumn1" Text='<%#Eval("Column1")%>' runat="server">
</asp:Label>
<asp:Label ID="LblDataSourceType" Text='<%#Eval("DataSourceType")%>' runat="server" Visible="false">
</asp:Label>
</ItemTemplate>
<HeaderStyle Width="280px" />
<ItemStyle Font-Names="Arial" Font-Size="11px" Wrap="true" />
</telerik:GridTemplateColumn>

Can anybody please help on this an explain me how can i bind the filter dropdown from codebehind?

Thanks in advance

Thanks,
Mahesh O A

[Eyup]

Hi Mahesh,

You have several options to bind the combo dynamically:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridFilteringItem)
    {
        GridFilteringItem filterItem = e.Item as GridFilteringItem;
        RadComboBox combo = filterItem.FindControl("RadComboBoxColumn1") as RadComboBox;

        combo.DataSource = new string[] { "Berlin", "Hanari Carnes", "London" };
    }
}

Or:

<telerik:RadComboBox ... OnInit="RadComboBoxColumn1_Init">

C#:

protected void RadComboBoxColumn1_Init(object sender, EventArgs e)
{
    RadComboBox combo = sender as RadComboBox;
    combo.DataSource = new string[] { "Berlin", "Hanari Carnes", "London" };
}

Hope this helps. Please give it a try and let me know if it works for you.

Regards,
Eyup
Telerik