If you want to set an initial sorting on a column on a Telerik RadGrid, use the “NeedDataSource” event and add a GridSortExpression to the MasterTableView.SortExpressions

        protected void RadGrid_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            // Set datasource here…
            
            if (!IsPostBack)
            {
                // Clear the current sortexpressions
                this.RadGrid.MasterTableView.SortExpressions.Clear();

                // Create "Date" sorting
                GridSortExpression expression = new GridSortExpression();
                expression.FieldName = "Date";
                expression.SortOrder = GridSortOrder.Descending;

                // Set initial sortexpression to the [Date] column
                this.opdrachtenRadGrid.MasterTableView.SortExpressions.AddSortExpression(expression);

            }
        }

In the aspx page:

              <telerik:GridDateTimeColumn
                   DataField="Date"
                   HeaderText="Date"
                   SortExpression="Date"
                   UniqueName="Date"
                   FilterControlWidth="70px"
                   ShowFilterIcon="false"
                   DataType="System.DateTime"
                   CurrentFilterFunction="EqualTo"
                   PickerType="DatePicker"
                   AutoPostBackOnFilter="true"
                   HtmlEncode="false"
                   DataFormatString="{0:dd-MM-yyyy}"
                   meta:resourcekey="Date">
                   <ItemStyle Width="70px" />
               </telerik:GridDateTimeColumn>


Or you could use the “SortExpressions” tag in the MasterTableView tag:

<telerik:RadGrid ID="RadGrid1" runat="server"> <MasterTableView> <SortExpressions> <telerik:GridSortExpression FieldName="Name" SortOrder="Ascending" /> </SortExpressions> <Columns> <telerik:GridBoundColumn AutoPostBackOnFilter="true" CurrentFilterFunction="Contains" DataField="Name" FilterControlWidth="200px" meta:resourcekey="CustomerNameColumn" UniqueName="Name" SortExpression="Name" ShowFilterIcon="true"> <ItemStyle Width="200px" /> </telerik:GridBoundColumn>

……

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