Implementing Additional Logic for Shift+Enter Keys in DataGrid on Windows

Updated on Jan 14, 2026

Environment

Version	Product	Author
12.1.0	Telerik UI for .NET MAUI DataGrid	Dobrinka Yordanova

Description

I want to implement additional logic for handling Shift+Enter keyboard keys in the DataGrid component on Windows. The RadKeyboardKey enumeration doesn't include the Shift key, and I need a way to determine if the Shift key is pressed.

This knowledge base article also answers the following questions:

• How to detect Shift key press in DataGrid for UI for .NET MAUI?
• How to override default key handling in DataGrid on Windows?
• How to execute custom logic for Shift+Enter keys in .NET MAUI DataGrid?

Solution

To achieve this, extend the key handling logic in the Execute method of the DataGrid KeyDownCommand. Use the Microsoft.UI.Input.InputKeyboardSource.GetKeyStateForCurrentThread method to detect the Shift key press on Windows. Follow these steps:

1. Use the DataGrid KeyDownCommand. Define a class by inheriting from DataGridCommand.
2. Override the Execute method to implement logic for handling the Shift key.
3. Use the IsShiftKeyDown method to detect if the Shift key is pressed.

csharp

using System.Collections.ObjectModel;
using System.Reflection;
using Telerik.Maui.Controls;
using Telerik.Maui.Controls.DataGrid;
#if WINDOWS
using Windows.UI.Core;
#endif

public class ShiftEnterDataGridKeydownCommand : DataGridCommand
{
	public ShiftEnterDataGridKeydownCommand()
	{
		Id = DataGridCommandId.KeyDown;
	}

	public override bool CanExecute(object parameter)
	{
		return true;
	}
	public override void Execute(object parameter)
	{
		if (parameter is KeyboardInfo keyboardInfo)
		{
			if (keyboardInfo.key == Telerik.Maui.RadKeyboardKey.Down)
			{
				var newKey = new KeyboardInfo(Telerik.Maui.RadKeyboardKey.Enter, () => { });
				this.Owner.CommandService.ExecuteDefaultCommand(Id, newKey);

			}
			else if (keyboardInfo.key == Telerik.Maui.RadKeyboardKey.Enter)
			{
				if (IsShiftKeyDown())
				{
					// add your logic here
					return;
				}
			}

			else
			{
				this.Owner.CommandService.ExecuteDefaultCommand(Id, parameter);
			}
		}
	}

	internal static bool IsShiftKeyDown(VisualElement visualElement = null)
	{
#if WINDOWS
		CoreVirtualKeyStates controlStates = Microsoft.UI.Input.InputKeyboardSource.GetKeyStateForCurrentThread(global::Windows.System.VirtualKey.Shift);
		bool isShiftKeyDown = controlStates.HasFlag(CoreVirtualKeyStates.Down);

		return isShiftKeyDown;

#else
		return false;
#endif
	}
}

See Also

• DataGrid Overview
• DataGrid Keyboard Support
• DataGrid Commands