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Radwindow returns argument when manually closed

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This is a migrated thread and some comments may be shown as answers.

Brenden asked on 11 Feb 2009, 09:47 PM

I have created a sample page which is demonstrating the problem I am encountering. When you click the link on the page, it opens a radwindow. Within that radwindow, if you click on the link titled 'close me with argument' the window is closed with an argument, the javascript validates the argument then the page does a postback and the server time is displayed on the page. (I have a radgrid on the page, as this emulates what I am actually doing on my live page). Then after the page has posted back, if you open the radwindow again and simply close the window (click the X on the toolbar) the argument is still passed to the javascript function. How can i prevent this from happening? Below is my sample project using version Q3 2008. Thanks for your help!

Test.aspx (load me)

    
            <%@ Page language="VB" CodeFile="test.aspx.vb" AutoEventWireup="false" Inherits="_test" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 
        
            <html xml:lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head> 
        
                <title></title> 
        
                <script type="text/javascript"> 
        
                function ShowDeleteForm() 
        
                { 
        
                    window.radopen("test2.aspx", "AdWindow"); 
        
                } 
        
                function OnClientClose(oWnd) 
        
                { 
        
                    //get the transferred arguments 
        
                    var arg = oWnd.argument; 
        
                    if(arg) 
        
                    { 
        
                        if (arg.Value == 'true') { 
        
                            __doPostBack("<%=RadGrid1.UniqueID%>", 'DeleteAd;12345');   
        
                        } 
        
                    } 
        
                }     
        
                </script>   
        
            </head> 
        
            <body> 
        
                <form runat="server" id="mainForm" method="post"> 
        
                    <asp:ScriptManager id="ScriptManager1" runat="server" /> 
        
                    <telerik:RadWindowManager ID="RadWindowManager1" runat="server" Skin="Vista"> 
        
                        <Windows> 
        
                            <telerik:RadWindow Skin="Vista" ID="AdWindow" runat="server" Height="200px" Width="400px" 
        
                                Left="150px" ReloadOnShow="true" Modal="true" VisibleStatusbar="false" OnClientClose="OnClientClose" ShowContentDuringLoad="false" /> 
        
                        </Windows> 
        
                    </telerik:RadWindowManager> 
        
                        <telerik:RadAjaxPanel  
        
                            ID="RadAjaxPanel1"  
        
                            runat="server" 
        
                            LoadingPanelID="LoadingPanel1"> 
        
                                <asp:UpdatePanel ID="UpdatePanel3" runat="server"> 
        
                                    <ContentTemplate> 
        
                                        <telerik:RadGrid ID="RadGrid1" runat="server"> 
        
                                        </telerik:RadGrid>    
        
                                        <asp:Literal ID="ltlContent" runat="server"></asp:Literal> 
        
                                        <br /><br /> 
        
                                        <a href="javascript:ShowDeleteForm();">click me</a> 
        
                                    </ContentTemplate>                                                                 
        
                                </asp:UpdatePanel>                                                                 
        
                        </telerik:RadAjaxPanel> 
        
                        <telerik:RadAjaxLoadingPanel ID="LoadingPanel1" runat="server" Transparency="35" BackColor="#E0E0E0"> 
        
                            <img alt="Loading..." src='<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>'  
        
                                style="margin-top: 50px; margin-left: 0px; position:relative;" /> 
        
                        </telerik:RadAjaxLoadingPanel>         
        
                </form> 
        
            </body> 
        
            </html>

Test.aspx.vb

    
            Partial Class _test 
        
                Inherits System.Web.UI.Page 
        
                Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 
        
                    If IsPostBack Then 
        
                        Dim passedArgument As String = Request.Params.[Get]("__EVENTARGUMENT") 
        
                        If Not (passedArgument Is Nothing) And passedArgument <> "" Then 
        
                            If passedArgument.IndexOf("DeleteAd") <> -1 Then 
        
                                Dim strArray As String() 
        
                                strArray = passedArgument.Split(";") 
        
                                postVal(strArray(1)) 
        
                            End If 
        
                        End If 
        
                    End If 
        
                End Sub 
        
                Private Sub postVal(ByVal strVal As String) 
        
                    ltlContent.Text = Date.Now & " - " & strVal 
        
                    RadGrid1.Rebind() 
        
                End Sub 
        
            End Class

Test2.aspx

    
            <%@ Page language="VB" AutoEventWireup="false" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 
        
            <html xml:lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head> 
        
                <title></title> 
        
                <script 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(val) 
        
                    { 
        
                        var oArg = new Object(); 
        
                        oArg.Value = val; 
        
                        var oWnd = GetRadWindow(); 
        
                        oWnd.argument = oArg;   
        
                        oWnd.close(); 
        
                    } 
        
                </script>   
        
            </head> 
        
            <body> 
        
                <form runat="server" id="mainForm" method="post"> 
        
                    <a href="javascript:returnToParent('true');">close me with argument</a> 
        
                </form> 
        
            </body> 
        
            </html>

2 Answers, 1 is accepted

answered on 13 Feb 2009, 09:24 AM

Hi Brenden,

In your logic, you add a new argument to the RadWindow object. In OnClientClose however, after checking for such argument and executing your logic in the check, you don't remove the argument.
What happens is:

RadWindow is opened and an argument has been added to it before closing
OnClientClose fires and checks for argument. Since there is one, your code gets executed.
You open RadWindow again and close it after that by using the X button.
OnClientClose is fired again, however the argument still exist from the previous opening - that is why your code gets executed again.

If you clear the argument after the code's execution, you will not get this problem:

    
            function OnClientClose(oWnd)  
        
            {  
        
                //get the transferred arguments  
        
                var arg = oWnd.argument;  
        
                if(arg)  
        
                {  
        
                    if (arg.Value == 'true') {  
        
                        __doPostBack("<%=RadGrid1.UniqueID%>", 'DeleteAd;12345');    
        
                    }  
        
                } 
        
                //clear the argument 
        
                oWnd.argument = null;  
        
            }

I hope this helps.

Greetings,
Georgi Tunev
the Telerik team

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