How to resolve the Copy paste issue in WinForms GridGroupingControl when the startup projects is in WPF?
Resolve the copy-paste issue
According to Windows Forms, copy-paste operations cannot be performed on WinForms GridGroupingControl when the startup project is in WPF. While opening the Windows Forms form from the WPF window, the keyboard messages are not passed to the WPF window. Add the EnableWindowsFormsInterop method in the Startup event to enable the copy and paste option.
<Application x:Class="AutoHideDemo.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
StartupUri="Window1.xaml" Startup="Application_Startup" >To enable the
Windows Forms copy and paste options when the Startup project is WPF.
C#
private void Application_Startup(object sender, StartupEventArgs e)
{
WindowsFormsHost.EnableWindowsFormsInterop();
}VB
Private Sub Application_Startup(ByVal sender As Object, ByVal e As StartupEventArgs)
WindowsFormsHost.EnableWindowsFormsInterop()
End SubThe screenshot below illustrates the copy and paste options in GridGroupingControl.

Samples:
C#: Copy paste
VB: Copy paste