Exception while trying to use Prompt

[Venu Gadde]

Hello,

I am getting an exception when trying to use the RadWindow.Prompt. As soon as I click the button that launches the prompt window, IE throws exception. Please see code below (copied from the demos). I am using the 808 hotfix.

Exeption details:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; .NET4.0E)
Timestamp: Thu, 11 Aug 2011 15:24:41 UTC

Message: Unhandled Error in Silverlight Application
Code: 4004   
Category: ManagedRuntimeError      
Message: System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Windows.Controls.DialogParameters.IsEqual(DialogParameters newObj)
   at Telerik.Windows.Controls.DialogParameters.op_Equality(DialogParameters one, DialogParameters two)
   at Telerik.Windows.Controls.DialogParameters.op_Inequality(DialogParameters one, DialogParameters two)
   at Telerik.Windows.Controls.RadPrompt.OnApplyTemplate()
   at System.Windows.FrameworkElement.OnApplyTemplate(IntPtr nativeTarget)    

Line: 120
Char: 13
Code: 0
URI: http://localhost:7067/

 

Thank you,

Venu Gadde.
-------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Telerik.Windows.Controls;
 
namespace Prompt
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, RoutedEventArgs e)
        {
            string promptText = "Rename employee:";
            RadWindow.Prompt(promptText, new EventHandler<WindowClosedEventArgs>(OnPromptClosed));
        }
 
        private void OnPromptClosed(object sender, WindowClosedEventArgs e)
        {
            RadWindow.Alert(String.Format("DialogResult: {0}, PromptResult: {1}", e.DialogResult, e.PromptResult));
            if (e.PromptResult != null && e.PromptResult != string.Empty)
            {
                string promptResult = e.PromptResult;
            }
        }
    }
}

[Miroslav Nedyalkov]

Hi Venu,

 Thank you for contacting us. We were able to fix this problem and the fix will be included in the next internal build (this Monday).

Kind regards,
Miroslav Nedyalkov
the Telerik team