Displaying Sort Icon by default.

[Puttu]

I want to show Sort Icon on a column by default when the RADGrid loads for the firsttime. Currently, the Sort Icon appears only after I click it. Is there any property of RADGrid that shows Sort Icon by default?

[Shinu]

Hi,

You can achieve this by setting the SortExpression for the Grid in the PreRender event. Set the FieldName for the SortExpression with  the DataField of the desired column.

CS:

  protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        GridSortExpression SortExp = new GridSortExpression();
        SortExp.FieldName = "ProductName";
        SortExp.SortOrder = GridSortOrder.Ascending;
        RadGrid1.MasterTableView.SortExpressions.Add(SortExp);
        RadGrid1.MasterTableView.Rebind();
    }

Shinu.

[CHETAN JAITLY]

Hi,
As per this code for default sort icon, It create a problem when we add another code for header click event of sorting.
as for ex I have written in radgrid_prerender event I have written the code for sorting on header click event. Now if I am paste this sort icon default code in pre render it always sort by that default column. If I clicked on any other column then also it sort by default column.

Protected Sub RadGridContacts_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadGridContacts.PreRender                
       GridSortExpression SortExp = new GridSortExpression(); 
        SortExp.FieldName = "Email"; 
        SortExp.SortOrder = GridSortOrder.Ascending; 
        RadGridContacts.MasterTableView.SortExpressions.Add(SortExp); 
        RadGridContacts.MasterTableView.Rebind(); 
        Dim iCounter As Integer = 0
        For Each col As GridColumn In RadGridContacts.MasterTableView.RenderColumns
            For Each header As GridHeaderItem In RadGridContacts.MasterTableView.GetItems(GridItemType.Header)
                If iCounter > 3 Then
                    header(col.UniqueName).Attributes.Add("OnClick", "return SortColumn('" & col.UniqueName & "');")
               End If
               iCounter = iCounter + 1
           Next
       Next
  End sub

Thanks,
Jalps