HeaderText not setting

[Ben]

I have a simple grid and I'm trying to set the header text on the back end. However, whenever I try to set it, the header just doesn't show up. I'm simply doing this

<telerik:RadGrid ID="rptExams" runat="server" AutoGenerateColumns="false" Skin="MetroTouch" AllowSorting="true" OnInit="rptExams_Init"
   AllowFilteringByColumn="true" OnPreRender="rptExams_PreRender">
       <AlternatingItemStyle CssClass="trAlt" />
       <MasterTableView>
           <Columns>
               <telerik:GridBoundColumn UniqueName="excat_code" SortExpression="excat_code" DataField="excat_code">
               </telerik:GridBoundColumn>
           </Columns>
       </MasterTableView>
   </telerik:RadGrid>

protected void rptExams_PreRender(object sender, EventArgs e)
{
    GridColumn col = rptExams.Columns[0];
    col.HeaderText = "asdfasdf";
}//rptExams PreRender

But there is no column header at all. Any ideas why?

[Ben]

I just noticed that if I do a filter or a sort, the header text then does get set, just not on the page load. Don't know if that helps any.

[Princy]

Hi Ben,

Please Rebind() the grid in the PreRender event after setting the HeaderText.

C#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
{
  RadGrid1.MasterTableView.GetColumn("ColumnUniqueName").HeaderText = "Header Text";
  RadGrid1.Rebind();
}

Thanks,
Princy

[Eyup]

Hello Ben,

Please note that the HeaderText property should be set very early in the life cycle - even before the item is created. In order to modify it later in the cycle, you will need to directly access and change the text of the cell itself:

Copy Code

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridDataItem && e.Item.ItemIndex == 2) // custom condition
    {
        GridDataItem dataItem = e.Item as GridDataItem;
        string dataKeyID = dataItem.GetDataKeyValue("OrderID").ToString();

        GridHeaderItem headerItem = e.Item.OwnerTableView.GetItems(GridItemType.Header)[0] as GridHeaderItem;
        foreach (TableCell cell in headerItem.Cells)
        {
            if (cell.Text == "Reporting Period")
            {
                cell.Text = "Success";
                break;
            }
        }
    }
}

Hope this helps.

Regards,
Eyup
Telerik