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

[Solved] RadAjaxManagerProxy Issue

11 Answers 1071 Views

Ajax

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

11 Answers, 1 is accepted

answered on 02 Apr 2008, 10:10 AM

Hello Jonathan,

You can achieve that getting the RadAjaxManager control instance through GetCurrent() static method via server-side code block. The code would look like this:

    
                <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server"> 
        
                    <script type="text/javascript"> 
        
                        function myUserControlClickHandler() 
        
                        { 
        
                            $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").AjaxRequest("content"); 
        
                        } 
        
                    </script> 
        
                </telerik:RadCodeBlock>

This is applicable both for WebUserControls and ContentPages containing RadAjaxManagerProxy control.

Regards,
Konstantin Petkov
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

answered on 08 Apr 2008, 07:22 AM

AjaxRequestFromContentPage.zip

Hello Scott,

You can use some content page's code as follows:

    
                <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server"> 
        
                    <script type="text/javascript"> 
        
                        function myContentClickHandler() 
        
                        { 
        
                            $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").AjaxRequest("content"); 
        
                        } 
        
                    </script> 
        
                </telerik:RadCodeBlock>

I have attached an example for your convenience.

All the best,
Konstantin Petkov
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

answered on 08 Apr 2008, 01:29 PM

Thank you for your reply. The problem with this is that the "content" code is on the master page. I don't want to execute code on a master page. I want to execute code on a content page.

I have a RadAjaxManagerProxy on my content page, but there is no onAjaxRequest event like there is with the RadAjaxManager. So if I'm going to have to use the RadAjaxManager, I have no problem referencing that, but I want to execute code on my content pages, not on the master page.

What I'm trying to do is just run some server side code on my content page from a javascript function on my content page. I thought I was onto something when I saw you can use the onAjaxRequest event.

answered on 08 Apr 2008, 01:59 PM

RequestWithTargetWithinContentPage.zip

Hello Scott,

You can achieve that through the other client-side function: ajaxRequestWithTarget. I have updated the page with additional button which executes that. An AJAX setting should be added for the target button as AJAX initiator:

    
            <%@ Page Language="C#" MasterPageFile="~/MasterPage.master"  %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <script runat="server"> 
        
                protected void Button1_Click(object sender, EventArgs e) 
        
                { 
        
                    Label2.Text = DateTime.Now.ToLongTimeString(); 
        
                }     
        
            </script> 
        
            <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> 
        
                <telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy" runat="server"> 
        
                    <AjaxSettings> 
        
                        <telerik:AjaxSetting AjaxControlID="Button1"> 
        
                            <UpdatedControls> 
        
                                <telerik:AjaxUpdatedControl ControlID="Label2" /> 
        
                            </UpdatedControls> 
        
                        </telerik:AjaxSetting> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManagerProxy> 
        
                <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server"> 
        
                    <script type="text/javascript"> 
        
                        function myContentClickHandler() 
        
                        { 
        
                            $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").ajaxRequest("content"); 
        
                        } 
        
                        function myContentClickTargetHandler() 
        
                        { 
        
                            $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").ajaxRequestWithTarget("<%= Button1.UniqueID %>", ""); 
        
                        } 
        
                    </script> 
        
                </telerik:RadCodeBlock> 
        
                <asp:Button ID="Button1" runat="server" OnClientClick="myContentClickHandler(); return false;" Text="content button" OnClick="Button1_Click"/> 
        
                <asp:Button ID="Button2" runat="server" OnClientClick="myContentClickTargetHandler(); return false;" Text="content button target"/> 
        
                <asp:Label ID="Label2" runat="server"></asp:Label> 
        
            </asp:Content>

The updated example is attached as well.

Sincerely yours,
Konstantin Petkov
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

answered on 23 Dec 2008, 01:13 AM

I get the following error message when I try the ajaxRequestWithTarget

Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

It seems like I'm on the right track but adding this to my webcontrol didn't seem to help.

protected

override void Render(HtmlTextWriter writer) {

Page.ClientScript.RegisterForEventValidation(grdAppointments.UniqueID,

this.ToString());

base.Render(writer);

}

cheers,
Stephen

answered on 27 Apr 2009, 10:54 AM

Hi Maria

I understand you can author a JavaScript function as below:

function myContentClickTargetHandler()

{

$find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").ajaxRequestWithTarget("<%= Button1.UniqueID %>", "");

}

to launch an Ajax request to the content page's Button1 control with ajaxRequestWitharget. However, if the control in the content page is a RadGrid, things are not that easy. For example, if we use your RadWindow as the popup window to insert a record for a RadGrid that is placed inside a content page, you would call GetRadWindow().BrowserWindow.refreshGrid('navigateToInserted') to refresh the RadGrid in the content page after inserting. Inside refreshGrid function of the content page, you probably need to call something like:

$find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").ajaxRequestWithTarget("<%= RadGrid1.UniqueID >", "navigateToInserted");

But what RadGrid event do we need to use to handle this Ajax request, and furthermore, how can we navigate to the inserted record? The challenge here is it is easy for the button control because you can use OnClick to handle Ajax request, secondly, in your demo: http://demos.telerik.com/aspnet-ajax/controls/examples/integration/gridandwindow/defaultcs.aspx?product=grid, there is no content page, so you don’t have this Ajax manager proxy issue.

Cheers

William