Disabling Keyboard Functionality in DataGrid for MAUI

Environment

Product	Version	Author
DataGrid for MAUI	7.1.0	Dobrinka Yordanova

Description

I want to disable the keyboard functionality for the RadDataGrid to prevent automatic selection of the next row or cell when arrow keys are pressed. I plan to manage this behavior manually.

This KB article also answers the following questions:

• How can I stop the DataGrid in MAUI from responding to keyboard inputs?
• What approach can I use to disable arrow key navigation in DataGrid for MAUI?
• Is it possible to manually control cell or row selection in DataGrid for MAUI without using the keyboard?

Solution

To disable the keyboard functionality in the RadDataGrid, implement a custom KeyDownCommand that overrides the default keyboard behavior. By setting the CanExecute method to return false, keyboard input is effectively ignored, thus disabling the default navigation and selection behavior. Here's how to implement and use the custom command:

1. Define the KeyDownCommand class:

public class KeyDownCommand : DataGridCommand
{
    public KeyDownCommand()
    {
        Id = DataGridCommandId.KeyDown;
    }
    public override bool CanExecute(object parameter)
    {
        // Use 'return false;' if you want to stop executing the command.
        // When using 'return true;' write your custom logic inside the 'Execute' method.
        return false;
    }
    public override void Execute(object parameter)
    {
        // Uncomment the line below in order to execute the default command and enable the keyboard navigation support. Alternatively, write your custom logic implementation.
        //this.Owner.CommandService.ExecuteDefaultCommand(DataGridCommandId.KeyDown, parameter);
    }
}

2. Add the custom command to the RadDataGrid's Commands collection:

this.datagrid.Commands.Add(new KeyDownCommand());

By following these steps, the keyboard functionality of the RadDataGrid will be disabled, and it will no longer respond to arrow keys for navigation and selection.

For more information on commands in RadDataGrid for MAUI, refer to the official Telerik documentation on DataGrid Commands.