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Strange Behaviour of all RadControls Component that involve mouse over or mouse click

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answered on 10 Jul 2007, 03:25 PM

Hello Eriksurya,

The issue you describe cannot be related to DirectX because we are not using DirectX for drawing.

In our attempt to reproduce it, we created a couple of forms under Windows Server 2003 SP1, but were not able to observe any problems. We think that your problem is related to the way you have set the theme to the button, but we will need some additional information on your scenario before giving you a certain solution:

Do you have SP1 for Windows Server 2003 installed?
Have you experienced any theme issues with the QSF application?
Do you experience these theme problems with your custom application? If so, it will be best to send it to us so we can examine and resolve the issue. You can open a new support ticket and attach the app there.
Have you created a new theme for your button? If yes, have you set a state for the OnMouseOut event?
Can you reproduce the issue with a theme other than the default one?
Can you reproduce the issue on a Win XP machine?

Thank you in advance for your assistance.

Sincerely yours,
Jordan
the Telerik team

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answered on 20 Jul 2007, 02:58 AM

Hi there, I think the problem may not be related to OS directly, but instead with Graphics Card.. Because I am having the exact same problem on my Windows 2003 Server R2 and a Windows XP SP2 machine... The symptom is both of the Machine doesnt have a Graphics card. It only use onboard video. And running the same thing on my Windows XP 64bit SP2 is fine...

In my scenario, the control are even worse, all the rad control involves mouse_hover event screwed up.. they are all orange when hovered, cant be back to initial state.... Acts like as if the Mouse Clock event cannot be completed. Press -> Release becomes a Click... but controls just hangs at the Press stage.

Cheers

answered on 25 Mar 2010, 05:56 PM

Hi Leland,

Generally speaking, we have progress in pinpointing this problem, but we would like to get your input as well. In some cases a simple restart of the machine fixed the issue, in others the problem turned out to be in old video drivers, and yet in others, the issues were in the Citrix terminal server system. These resolutions suggest that this issue might not be directly related with RadControls for WinForms but with the specific GDI/RDP context.

We are determined to understand why it is happening and what we can do to overcome it. We will very much appreciate it if you would answer the following questions for us in order to help us pinpoint the problem:

Are the described glitches present on all the machines that remotely connect to the application or on some of them? If some, what are the specifics/differences between them?
What are the hardware specifications?
What is the OS installed on these machines?
What version of Citrix are you running?
Are the machines up to date in terms of drivers? We have had a couple of customers solve similar issues with simple video driver update from the original manufacturer (rather than using the Microsoft driver).
Are the machines up to date in terms of software updates?
Are the machines running DirectX 10?
It is possible that this issue is somehow related to the fact that we use GDI-based animations. We believe that this might be a problem related to GDI and RDP, and the way the RDP transfers painting information - in other words, the only way you can prevent this from happening is to turn off the animations in our controls (which is pretty simple). We have prepared a few scenarios you could perform and help us narrow down the issues that might lead to this.

I would like to ask you to try turning off the Bitmap Cache we use when painting gradients and see whether the issue persists (very important case):

Me.RadGridView1.Behavior.BitmapRepository.DisableBitmapCache = True

After doing this, if the issue persists, you will be able to overcome it by turning off the animations for all controls:

ThemeResolutionService.AllowAnimations = False

or the animations for a separate control:

Me.RadGridView1.ElementTree.SuspendAnimations()

Please write back when you have experimented with the scenarios described above letting us know which of them is helpful.

Thanks for you time. We look forward to receiving further details on that case.

Best wishes,
Vassil
the Telerik team

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answered on 25 Mar 2010, 10:33 PM

Vassil

Here is the environment information you asked about:

    
                            Working Machine         Non-working Machine  
        
            O/S             2003 Standard           2003 Enterprise  
        
            Hardware        Virtual                 Virtual  
        
            Mem             2GB                     4GB  
        
            Citrix          Using Terminal Server   Using Terminal Server  
        
            Drivers         Up to date              Up to date  
        
            Software        Up to date              Up to date  
        
            DirectX 10      No                      No

I should be noted that we also have a non-working 2003 Standard installation, but it was not used for this testing to isolate the issue. We are looking at all hardware and software to narrow down the root cause of this issue.

I created a Winform App with a RadMenu and place 4 Root entries.
This application shows the in blue originally, and highlights to yellow, but on one machine the menu stays highlighted, but on the other it does not.

I then added the line:
Me.RadMenu1.Behavior.BitmapRepository.DisableBitmapCache = True

And still had the same results.

I could not seem to find anything under ThemeResolutionService for AllowAnimations, and could not find anything when searching your sight, so if you could provide a little more help with this setting, I would be happy to test it.

I could not find anything on SuspendAnimations, but I did try the DropdownAnimationEnable, and tried changing the Frames and Easing too, but always got the same end result however adding frames just made it take longer to display.

If there is something else you would like me to try let me know.
-Lee

answered on 26 Mar 2010, 09:57 PM

Vassil

I expanded my test application to include a grid I added 3 numeric columns to the grid and when the GroupExpandAnimationType is set to slide then we get very erratic results when the grid is grouped and you try to expand or collapse a group. When the GroupExpandAnimationType is set to none then it works properly.

    
            Public Class Form1  
        
                Public Sub New()  
        
                    ' This call is required by the Windows Form Designer.  
        
                    InitializeComponent()  
        
                    ' Add any initialization after the InitializeComponent() call.  
        
                    For i As Integer = 1 To 500  
        
                        Me.RadGridView1.Rows.Add(i, i \ 10, i \ 100)  
        
                    Next 
        
                    Me.RadGridView1.Behavior.BitmapRepository.DisableBitmapCache = True 
        
                End Sub 
        
            End Class

The only property I could find was the DisableBitmapCache and when that was true but the GroupExpandAnimationType was Slide the problem persisted. It looks like we will have to set the animations to none on the effected controls.

Oh if you would like I can record a video displaying the issue.
-Lee

answered on 29 Mar 2010, 01:16 PM

Hi Leland,

Thanks for getting back to us and for the provided details.

1. Could you please share with us which version of RadControls for WinForms you are using?

2. If you are not using the latest version of RadControls for WinForms, we would like to ask you to download and install this version and try the same steps described earlier. Since a couple of our customers who also experienced this issue confirmed for us that the disabling of the bitmap cache resolves it, we believe it might help in your case as well.

3. In case you download the latest version, also try again setting the AllowAnimations property of the ThemeResolutionService:

ThemeResolutionService.AllowAnimations = False

I hope these steps will help you resolve the case and look forward to receiving further details on your case.

Best wishes,

Deyan
the Telerik team

answered on 29 Mar 2010, 08:12 PM

Deyan,

We upgraded the test application from the 2009-Q3 SP1 release to the 2010-Q1 release, and the application originally demonstrated the same issue on two of the servers. We then rebooted and it was better on those servers in that the grid opened and closed and did not get losted in the display of data, but the animation was still jerky. I then added the following line:

    
              Telerik.WinControls.ThemeResolutionService.AllowAnimations = _  
        
                Not System.Windows.Forms.SystemInformation.TerminalServerSession

This allowed the animations on the local client, and turned them off for the remote desktop client.

Thank you for your help.
-Lee

answered on 31 Mar 2010, 02:34 PM

Hi Leland,

Thanks for getting back to us and for the further feedback on the case.

It seems that these visual glitches are related to the animations we have in our controls which are based on GDI rendering. We believe that in certain cases (most probably in certain hardware configurations and maybe network bandwidth) the GDI animations fail to execute correctly when over RDP. Obviously, the only decent solution in this case is to turn off the animations. However, some of our customers reported that they did not experience this behavior when they turned off the bitmap caching we use when animating gradients. Therefore, we wanted you to first turn off this cache and see whether it brings any value since in this way you would still be able to use animations in your application.

I have updated your Telerik points for taking your time to investigate the case locally and sharing the results with us.

You can write back anytime you need assistance or have any questions.

Greetings,
Deyan
the Telerik team

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Strange Behaviour of all RadControls Component that involve mouse over or mouse click

18 Answers, 1 is accepted