private void tbAffineKeyA_TextChanged(object sender, EventArgs e)
{
if (!regexAffineKeyAText.IsMatch(this.tbAffineKeyA.Text))
{
this.errorProvider1.SetError(this.tbAffineKeyA,
$"数据格式错误，数据为0-25之间的整数");
this.myCipherKeys.AffineKeyA = MyCipherKeys.InvalidIntValue;
return;
}
int affineKeyA = int.Parse(tbAffineKeyA.Text);
if (!AffineCipher.IsKeyASuitable(affineKeyA, out string message))
{
this.errorProvider1.SetError(this.tbAffineKeyA, message);
this.myCipherKeys.AffineKeyA = MyCipherKeys.InvalidIntValue;
return;
}
this.myCipherKeys.AffineKeyA = affineKeyA;
this.errorProvider1.SetError(this.tbAffineKeyA, null);
}