| private txt_aeskey_TextChanged ( object sender, EventArgs e ) : void | ||
| sender | object | |
| e | EventArgs | |
| return | void | |
private void txt_aeskey_TextChanged(object sender, EventArgs e)
{
var txt = (TextBox)sender;
string item = txt.Text;
if (!(Regex.IsMatch(item, "^[0-9a-fA-F]+$")))
{
if(item.Length != 0)
txt.Text = item.Remove(item.Length - 1, 1);
txt.SelectionStart = txt.Text.Length;
}
}
}