/// <summary>
/// Checking author's input and sending it to the database
/// </summary>
/// <returns>True if author sent to DB, otherwise false</returns>
private bool AddItemAuthor()
{
AuthorAddViewModel viewmodel = (AuthorAddViewModel)DataContext;
Author author = viewmodel.MyAuthor;
if (string.IsNullOrEmpty(author.LastName))
{
MessageBox.Show("Last name cannnot be empty.");
return(false);
}
try
{
int id = MSAConnectionDB.SaveAuthorToDB(author);
author.AuthorId = id;
Authors.AddAuthor(author);
ActivateMainWindow();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
return(true);
}