OpenClipboard failed. 0x800401D0(CLIPBRD_E_CANT_OPEN)

[crosslife]

Unable to reproduce this error. How can we manually catch similar exceptions?

[Santhosh Govindasamy]

Hi crosslife,

Thank you for reaching out.

Based on provided information, we analyzed reported scenario, The error OpenClipboard failed. 0x800401D0(CLIPBRD_E_CANT_OPEN) typically occurs when an application attempts to access the system clipboard but encounters issues opening it. This could happen due to several reasons, such as:

1. Clipboard Locking: If another process is holding a lock on the clipboard (e.g., another application is actively using the clipboard), it can prevent your application from accessing it.

2. Clipboard Access Permissions: If your application doesn't have the required permissions to access the clipboard, it can fail to open it.

        3.     Multithreading Issues: Accessing the clipboard across multiple threads can sometimes lead to issues, especially if one thread opens the clipboard while another is trying to use it.

To overcome the issue Kindly ensure the below details.

1.Check if any other application is interacting with the clipboard during the time of the error.

2.Ensure the application has the necessary permissions for clipboard access.

3.Try to clear the clipboard and test again.

Regards,
Santhosh.G

[crosslife]

This crash occurs intermittently. I want to catch it in the code, and furthermore, I want to be able to catch any exceptions thrown by SfSpreadsheet. How should I do this?

[Santhosh Govindasamy]

Hi crosslife,

Thank you for your response.

From the provided information, your requirement want to capture any exceptions thrown by the spreadsheet.

This can be accomplished using the `DispatcherUnhandledException` event in the `App.xaml.cs` file. This event is triggered whenever an exception occurs on the UI thread and sets up a global exception handler for unhandled exceptions in a WPF application.

For your reference attached the sample please review it.

Code Snippet:

public App()

 {

     DispatcherUnhandledException += App_DispatcherUnhandledException;

 }


private void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)

{

    // Log the exception or display an error message

    MessageBox.Show($"An unexpected error occurred: {e.Exception.Message}", "Error", MessageBoxButton.OK, MessageBoxImage.Error);

 

    // Optionally, prevent the application from shutting down

    e.Handled = true;

}

Thanks for your cooperation.

Regards,
Santhosh.G

Attachment: SpreadSheetDemo_cf1b048f.zip

[crosslife]

This method catches all exceptions, but I only want to catch exceptions thrown by SfSpreadsheet.

[Santhosh Govindasamy]

Hi crosslife,

Thank you for your response.

Based on the provided information, you only want to catch exceptions thrown by SfSpreadsheet. This can be achieved by checking whether the exception originates from SfSpreadsheet in the App_DispatcherUnhandledException method.

Code snippet:

private void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)

 {

     // Check if the exception originates from SfSpreadsheet

     if (e.Exception.Source == "Syncfusion.SfSpreadsheet.WPF")

     {

         // Log the exception or display an error message

         MessageBox.Show($"An unexpected error occurred in SfSpreadsheet: {e.Exception.Message}", "Error", MessageBoxButton.OK, MessageBoxImage.Error);

 

         // Optionally, prevent the application from shutting down

         e.Handled = true;

     }

     else

     {

         // Let other exceptions propagate normally

         e.Handled = false;

     }

 }

 

Thanks for your cooperation.

Regards,
Santhosh.G

[Ivy Gray]

It helped me, thank you so much.

[Santhosh Govindasamy]

Hi crosslife,

We are glad to know that the reported problem has been resolved at your end. Please let us know if you have any further queries on this. We are happy to help.

Regards,
Santhosh.G