Pasting Value With Spaces in Front and Back Does Not Work

Updated on Sep 24, 2025

Environment

Product Version	2020.3.1020
Product	RadNumericUpDown for WPF

Description

Pasting a copied numeric value that contains untrimmed text does not work. In this case nothing happens.

Solution

Subscribe the RadNumericUpDown control to the DataObject's Pastring event and implement the pasting manually.

C#

	DataObject.AddPastingHandler(this.numericUpDown, OnNumericUpDownPaste);

C#

	private void OnNumericUpDownPaste(object sender, DataObjectPastingEventArgs e)
	{
		var copiedString = e.DataObject.GetData(typeof(string)) as string;
		if (copiedString != null)
		{
			copiedString = copiedString.Trim();
			double number = 0;
			var success = double.TryParse(copiedString, out number);
			if (success)
			{
				this.numericUpDown.SetCurrentValue(RadNumericUpDown.ValueProperty, number);
				e.CancelCommand();
			}
		}
	}