Delete confirmation with RadAjaxLoadingPanel is not working ???

[Nurietin]

Delete confirmation with RadAjaxLoadingPanel is not working ???

<asp:Button ID="btnDel" runat="server" Text="delete" OnClick="OnDeleteNom" OnClientClick="javascript:return confirm('delete item?')" />

code behind

protected void OnDeleteNom(object sender, EventArgs e)
{
//??? 
never comes here
}
 
Thanks,
Mehmedov

[Eyup]

Hi Nurietin,

It is very difficult to determine the exact cause of the problem just from the provided information. Can you please elaborate some more on the issue.
If you are using ajax, try to disable it and see if the problem persists.
An alternate approach would be to  enable your script debugging and confirm that no javascript errors are interfering.

It'd be best if you can provide us some more information on your project or send us the full markup of the page as well as the related code behind. Thus we will be able to further research on the problem and do our best to provide a proper solution.

Kind regards,
Eyup
the Telerik team

[Nurietin]

Hi,Eyup
this is Documents.aspx 

<%@ Page Title="Documents" Language="C#" AutoEventWireup="false" CodeBehind="Documents.aspx.cs"
Inherits="Archimed.Web.HotelRegister.Documents" %>

<%@ Register TagPrefix="dv" TagName="DocumentView" Src="Controls/DocumentView.ascx" %>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" />
<telerik:RadAjaxPanel ID="pnlRadAjax" runat="server" LoadingPanelID="RadAjaxLoadingPanel1">
<dv:DocumentView ID="dv:DocumentView  " runat="server" />
</telerik:RadAjaxPanel>

this is  DocumentView.ascx (asp control)

<%@ Control Language="C#" AutoEventWireup="false" CodeBehind="DocumentView.ascx.cs"
Inherits="Archimed.Web.HotelRegister.Controls.DocumentView" %>
<asp:Button ID="btnCopy" runat="server" Text="Copy" OnClick="OnCopy" />
<asp:Button ID="btnDelID" runat="server" Text="delete" OnClick="OnDelete" OnClientClick="javascript:return confirm('Confirm delete?')"/>

OnDelete method not firing on code behind  but OnCopy is fine
???

[Eyup]

Hi Nurietin,

In order to solve your issue you have two options:

• remove the return statement from your javascript on OnClientClick event:

<asp:Button ... OnClientClick="javascript: confirm('Confirm delete?')" />

• replace your javascript declaration with a relevant function:

<asp:Button ... OnClientClick="DeleteConfirmation()" />

JavaScript:

<script type="text/javascript">
    {
        function DeleteConfirmation(sender, args) {
           confirm('Confirm delete?')
        }
    }
</script>

Hope this helps. Good luck with your project.

Regards,
Eyup
the Telerik team

[Nurietin]

Hi,
Eyup

how can I get confirm result from DeleteConfirmation java script function??
in code behind 
 

protected void onDelete(Object sender, EventArgs e)
{
    ???
}

 

 

Thanks,
Nurietin

 

[Princy]

Hi,

To get the confirm value in the server you can invoke an AJAX request through the RadAjaxManager as follows.

ASPX:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" onajaxrequest="RadAjaxManager1_AjaxRequest">
</telerik:RadAjaxManager>
<asp:Button ID="Button1" runat="server" OnClientClick="DeleteConfirmation();" />

JS:

<script type="text/javascript">
 function DeleteConfirmation(sender, args)
  {
   var value = confirm("dfg");
   ajaxmanager = $find("<%= RadAjaxManager1.ClientID%>");
   if (!value)
    {
     ajaxmanager.ajaxRequest("Cancel");
    }
   else
    {
     ajaxmanager.ajaxRequest("Ok");
    }
  }
</script>

C#:

protected void RadAjaxManager1_AjaxRequest(object sender, Telerik.Web.UI.AjaxRequestEventArgs e)
 {
  if (e.Argument == "Ok")
   {
    Response.Write("OK");
   }
  else if(e.Argument == "Cancel")
   {
    Response.Write("CANCEL");
   }
 }

Thanks,
Princy.

[Nurietin]

Hi, Princy
now I have got this error ???
Microsoft JScript runtime error: Unable to get value of the property 'ajaxRequest': object is null or undefined

var

 

 

value = confirm(Confirm?');

ajaxmanager = $find(

 

"<%= pnlRadAjax.ClientID%>");

 

if (!value) {

ajaxmanager.ajaxRequest(

 

"Cancel");

}

 

else {

ajaxmanager.ajaxRequest(

 

"Ok");

}

[Eyup]

Hi Nurietin,

You can also try the following approach:

• create a hidden field in your mark-up:

<asp:HiddenField ID="hidden1" runat="server" />

• assign it the result from your confirmation demand:

<script type="text/javascript">
    {
        function DeleteConfirmation(sender, args) {
           var hiddenField = $find("<%= hidden1.ClientID%>");
           var result = confirm('Confirm delete?')
           $get('<%=hidden1.ClientID %>').value = result;
       }
    }
</script>

• use this value in the code behind for further action:

protected void OnDelete(object sender, EventArgs e)
   {
       if (bool.Parse(hidden1.Value))
       {
           //do something if confirmed
       }
       else
       {
           //do something else if canceled
       }
   }

All the best,
Eyup
the Telerik team

[Nurietin]

Hi,
I have <asp:HiddenField ID="hidden1" runat="server" />
But the problem again is
Microsoft JScript runtime error: Unable to set value of the property 'value': object is null or undefined

var hiddenField = $find("<%= hidden1.ClientID%>");

variable hiddenField is null

 

 

 

[Nurietin]

I found the solution 

<input id="HiddenConfirmResult" type="hidden" runat="server" />

<script type="text/javascript">
function DeleteConfirmation() {


var result = confirm("Confirm delete ?");
document.getElementById('<%=HiddenConfirmResult.ClientID%>').value = result;
}
</script>

code behind 

if (bool.Parse(HiddenConfirmResult.Value))
{
   //true
}
else
{
} // false