/// <summary>
/// Displays in the form's title bar a question and collects an answer from the control DisplayedInfoTextBox.
/// The form is displayed as a dialog box. Throws an exception if "question" is empty.
/// </summary>
public DialogResult AskQuestion(string question, ref string answer)
{
#region CheckOfArguments
#if DEBUG
try
{
GeneralLibrary.GeneralClass.CheckNotEmpty(question);
}
catch
{
throw new ArgumentException("question should be a non-empty string");
}
#endif
#endregion
this.Text = question;
DialogResult ResultOfDialog = this.ShowDialog();
bool RightAnswer = false;
while
(RightAnswer == false)
{
try
{
answer = this.DisplayedInfoTextBox.Text;
GeneralClass.CheckNotEmpty(answer);
RightAnswer = true;
}
catch (Exception MyException)
{
MessageBox.Show("The answer is supposed to be a non-empty string.");
RightAnswer = false;
}
}
return(ResultOfDialog);
}