I have RadGrid inside of RadWindows. I need to refresh RadGrid every time when RadWindow shows. How to do it?
<script type="text/javascript"> function closeCustomConfirm() { $find("<%=rwApproveInstance.ClientID %>").close(); } function ShowRadWindow() { var oWnd = $find("<%=rwApproveInstance.ClientID %>"); oWnd.show(); }</script><telerik:RadWindowManager runat="server" ID="RadWindowManager1" > <Windows> <telerik:RadWindow ID="rwApproveInstance" Modal="true" Behaviors="Close, Move" VisibleStatusbar="false" Width="800px" Height="700px" runat="server" ReloadOnShow="True" ShowContentDuringLoad="False"> <ContentTemplate> <div class="rwDialogPopup radconfirm"> <div> <telerik:RadGrid ID="rgApprovalInstance" runat="server" AutoGenerateColumns="False" CellSpacing="0" GridLines="None" OnNeedDataSource="rgApprovalInstance_NeedDataSource"> <MasterTableView DataKeyNames="FieldName"> <CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings> <RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column"> <HeaderStyle Width="20px"></HeaderStyle> </RowIndicatorColumn> <ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column"> <HeaderStyle Width="20px"></HeaderStyle> </ExpandCollapseColumn> <Columns> <telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" FilterControlAltText="Filter FieldName column" Groupable="False" HeaderText="FieldName" UniqueName="FieldName" DataField="FieldName"> <HeaderStyle CssClass="documents-table" /> </telerik:GridBoundColumn> <telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="FieldValue" FilterControlAltText="Filter FieldValue column" Groupable="False" HeaderText="FieldValue" ReadOnly="True" UniqueName="FieldValue"> <HeaderStyle CssClass="documents-table" /> </telerik:GridBoundColumn> </Columns> <EditFormSettings> <EditColumn FilterControlAltText="Filter EditCommandColumn column"> </EditColumn> </EditFormSettings> </MasterTableView> </telerik:RadGrid> </div> <div> <telerik:RadButton runat="server" ID="rbConfirm_Cancel" Text="Close" OnClientClicked="closeCustomConfirm"> </telerik:RadButton> </div> </div> </ContentTemplate> </telerik:RadWindow> </Windows></telerik:RadWindowManager>