private bool IsValidData()
{
return
(Validation.IsPresent(txtCountry) && Validation.IsPresent(txtDirector) &&
Validation.IsPresent(txtGenre) && Validation.IsPresent(txtTime) &&
Validation.IsPresent(txtTitle) && Validation.IsPresent(txtYear) &&
Validation.IsInt32(txtYear) && Validation.IsInt32(txtTime) &&
Validation.IsntEmpty(listCast, textCast));
}
private void btnAddCast_Click(object sender, EventArgs e)
{
if (Validation.IsLetter(textCast))
{
Cast Cast = new Cast();
Cast.Castmember = textCast.Text;
this.addListOfCast.Add(Cast);
listCast.Items.Add(Cast);
textCast.Text = "";
}
}