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PostBack using RadAjaxManager

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VnDevil
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VnDevil asked on 19 Jun 2010, 06:33 AM
Hi,

I want to PostBack RadGrid with RadAjaxManager when close RadWindow, but ajaxRequestWithTarget doesn't work in my code below, please help me fix this

ASPX Page
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"
<head id="Head1" runat="server"
    <title>Untitled Page</title> 
</head> 
<body> 
    <form id="form1" runat="server"
    <asp:ScriptManager ID="ScriptManager1" runat="server"
    </asp:ScriptManager> 
    <telerik:RadWindowManager ID="RadWindowManager1" runat="server"
    </telerik:RadWindowManager> 
    <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server"
        <script language="javascript" type="text/javascript"
            function openConfirmDeleteMany() { 
                var oWnd = radopen("ConfirmDeleteMany.aspx", "ConfirmDeleteManyWindow"); 
                oWnd.SetSize(400, 200); 
                oWnd.SetTitle('Title'); 
                oWnd.Center(); 
            } 
 
            function OnDeleteWindowClientClose(oWnd, args) { 
                if (args) { 
                    var hdfDeleteOption = document.getElementById("<%= hdfDeleteOption.ClientID %>"); 
                    hdfDeleteOption.value = args
                    var ajaxManager = $find("<%= RadAjaxManager1.ClientID %>"); 
                    ajaxManager.ajaxRequestWithTarget('<%= RadGrid1.UniqueID %>', ''); 
                } 
            } 
        </script> 
 
    </telerik:RadCodeBlock> 
    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"
        <AjaxSettings> 
            <telerik:AjaxSetting AjaxControlID="RadGrid1"
            </telerik:AjaxSetting> 
        </AjaxSettings> 
    </telerik:RadAjaxManager> 
    <asp:HiddenField ID="hdfDeleteOption" runat="server" /> 
    <telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="AccessDataSource1" GridLines="None" 
        AllowPaging="true" PageSize="20" AllowSorting="true" Skin="Vista" AllowFilteringByColumn="true" 
        OnItemDataBound="RadGrid1_ItemDataBound" OnItemCommand="RadGrid1_ItemCommand"
        <MasterTableView AutoGenerateColumns="False" DataKeyNames="EmployeeID" DataSourceID="AccessDataSource1"
            <Columns> 
                <telerik:GridBoundColumn DataField="EmployeeID" DataType="System.Int32" HeaderText="EmployeeID" 
                    ReadOnly="True" SortExpression="EmployeeID" UniqueName="EmployeeID"
                </telerik:GridBoundColumn> 
                <telerik:GridBoundColumn DataField="LastName" HeaderText="LastName" SortExpression="LastName" 
                    UniqueName="LastName"
                </telerik:GridBoundColumn> 
                <telerik:GridBoundColumn DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" 
                    UniqueName="FirstName"
                </telerik:GridBoundColumn> 
                <telerik:GridBoundColumn DataField="Title" HeaderText="Title" SortExpression="Title" 
                    UniqueName="Title"
                </telerik:GridBoundColumn> 
                <telerik:GridTemplateColumn> 
                    <ItemTemplate> 
                        <asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="cmdDelete" /> 
                    </ItemTemplate> 
                </telerik:GridTemplateColumn> 
            </Columns> 
        </MasterTableView> 
    </telerik:RadGrid> 
    <asp:AccessDataSource ID="AccessDataSource1" DataFile="~/App_Data/Nwind.mdb" SelectCommand="SELECT [EmployeeID], [LastName], [FirstName], [Title] FROM [Employees]" 
        runat="server"></asp:AccessDataSource> 
    </form> 
</body> 
</html> 

Code-behind:
        protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e) 
        { 
            if (e.Item is GridDataItem) 
            { 
                var item = e.Item as GridDataItem; 
                var btnDelete = (LinkButton)item.FindControl("btnDelete"); 
                btnDelete.OnClientClick = "openConfirmDeleteMany(); return false;"
            } 
        } 
 
        protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e) 
        { 
            if(e.CommandName == "cmdDelete"
            { 
                Response.Write(RadGrid1.MasterTableView.DataKeyValues[e.Item.ItemIndex]["EmployeeID"]); 
            } 
        } 


ConfirmDeleteMany.aspx
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head id="Head1" runat="server"
    <link href="/App_Themes/Administrator/adminStyle.css" rel="stylesheet" /> 
    <script src="/Scripts/Portal.js"type="text/javascript" language="javascript"></script> 
</head> 
<body> 
    <form id="form1" runat="server"
    <asp:ScriptManager ID="ScriptManager1" runat="server" /> 
 
    <script language="javascript" type="text/javascript"
 
        function GetRadWindow() { 
            var oWindow = null
            if (window.radWindow) oWindow = window.radWindow; 
            else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow; 
            return oWindow; 
        } 
         
        function returnToParent() { 
 
            if (confirm('Are you sure?')) { 
                var comboBox = $find("<%= ddlDeleteOption.ClientID %>"); 
                var item = comboBox.get_selectedItem(); 
                //alert(item.get_value()); 
                //get a reference to the current RadWindow 
                var oWndRad = GetRadWindow(); 
 
                var openerPage = oWndRad.BrowserWindow; 
                openerPage.OnDeleteWindowClientClose(oWndRad, item.get_value()); 
                oWndRad.close(); 
            } 
        } 
    </script> 
 
    <table cellpadding="2" cellspacing="2" border="0" width="100%"
        <tr> 
            <td> 
                <telerik:RadComboBox ID="ddlDeleteOption" runat="server"
                    <Items> 
                        <telerik:RadComboBoxItem Text="Delete One" Value="ONE" /> 
                        <telerik:RadComboBoxItem Text="Delete All" Value="ALL" /> 
                    </Items> 
                </telerik:RadComboBox> 
            </td> 
        </tr> 
        <tr> 
            <td> 
                <asp:Button ID="btnSubmit" Text="Submit" runat="server" OnClientClick="returnToParent(); return false;" /> 
            </td> 
        </tr> 
    </table> 
    </form> 
</body> 
</html> 



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Pavlina
Telerik team
answered on 21 Jun 2010, 12:06 PM
Hello,

Try to change your AjaxSettings as shown below and see if it makes a difference.
ASPX:
<telerik:RadAjaxManager id="RadAjaxManager1" runat="server">
  <AjaxSettings>
     <telerik:AjaxSettings AjaxControlID="RadGrid1" >
        <UpdatedControls>
           <telerik:AjaxUpdatedControl ControlID="RadGrid1"></telerik:AjaxUpdatedControl>
        </UpdatedControls>
     </telerik:AjaxSettings>
   </AjaxSettings>
</telerik:RadAjaxManager>

For more information, please refer to these articles:
http://www.telerik.com/help/aspnet-ajax/ajxclientsideapi.html
http://demos.telerik.com/aspnet-ajax/ajax/examples/manager/clientsideapi/defaultcs.aspx

Regards,
Pavlina
the Telerik team
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VnDevil
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Pavlina
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