C# TextBox 限定數字輸入防呆
C# TextBox 限定數字輸入防呆
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (((int)e.KeyChar < 48 | (int)e.KeyChar > 57) & (int)e.KeyChar!=8)
{
e.Handled = true;
}
}
C# TextBox 限定數字輸入防呆
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (((int)e.KeyChar < 48 | (int)e.KeyChar > 57) & (int)e.KeyChar!=8)
{
e.Handled = true;
}
}