Hello, Andrzej,
You can use the following workaround:
this.radMaskedEditBox1.MaskedEditBoxElement.ClearButton.Click += ClearButton_Click;
private void ClearButton_Click(object sender, EventArgs e)
{
this.radMaskedEditBox1.Value = null;
}
Regards,
Nadya | Tech Support Engineer
Progress Telerik
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