/// <summary>
/// Save all changes, for learning the number of changes
/// are shown in the IDE Output window, if there were changes
/// and the result is zero there is an issue if there are no
/// exceptions thrown prior to this save operation.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SaveAllChangesButton_Click(object sender, EventArgs e)
{
try
{
Console.WriteLine(context.SaveChanges());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// Save all changes, for learning the number of changes
/// are shown in the IDE Output window, if there were changes
/// and the result is zero there is an issue if there are no
/// exceptions thrown prior to this save operation.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SaveAllChangesButton_Click(object sender, EventArgs e)
{
Console.WriteLine(context.SaveChanges());
try
{
//context.Customers.Add(new Customer());
}
catch (DbEntityValidationException dbEx)
{
foreach (var entityErr in dbEx.EntityValidationErrors)
{
Console.WriteLine($@"Entity of type ""{entityErr.Entry.Entity.GetType().Name}"" in state ""{entityErr.Entry.State}"" has the following validation errors:");
foreach (var error in entityErr.ValidationErrors)
{
Console.WriteLine($@"- Property: ""{error.PropertyName}"", Value: ""{entityErr.Entry.CurrentValues.GetValue<object>(error.PropertyName)}"", Error: ""{error.ErrorMessage}""");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
