Windows form textbox numbers only

private void textBox1_TextChanged(object sender, EventArgs e)
{
    if (System.Text.RegularExpressions.Regex.IsMatch(textBox1.Text, "[^0-9]"))
    {
        MessageBox.Show("Please enter only numbers.");
        textBox1.Text = textBox1.Text.Remove(textBox1.Text.Length - 1);
    }
}

Windows form textbox only allow numbers

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
        e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);
    }

Similar codes

3 votes349 views1 answer
C#image to bytes
C#
0 vote328 views4 answers
Custom attribute for auth permission check .net
C#
1 vote364 views1 answer
How to parent something unity
C#Unity
0 vote343 views1 answer
Unity cancel momentum
C#
3 votes330 views2 answers
Raycasthit2d unity
C#
0 vote322 views1 answer
How to input data several times in c#
C#
11 votes338 views9 answers
Trump
C#
1 vote314 views1 answer
C# declare inline string array
C#
0 vote340 views2 answers
How to write excel content type while returning from mvc view
C#
0 vote350 views1 answer
Unity line renderer opacity
C#