Error text issue

[Simon]

Hello,

I did implement IDataErrorInfo and INotifyDataErrorInfo in order to validate the data in a RadGridView.

However, the error message is not displayed as expected.

If my error message is "ABCDEF"

It will be displayed like this:

ABCDEF
A
B
C
D
E
F


And if I click elsewhere in the grid, only the first letter of the message will be displayed (in this case, only the letter A).

Is the RadGridView supposed to handle IDataErrorInfo and INotifyDataErrorInfo or should I use the CellValidating event to set the error message?

[Nedyalko Nikolov]

Hello Simon,

The problem comes from the fact that INotifyDataErrorInfo.GetErrors() method returns IEnumerable and because string is IEnumerable<Char> that's why the error message is shown that way. You could handle this in the following way:

public IEnumerable GetErrors(string propertyName)
{
  return new List<string>(){"ABCDEF"};
  //instead of
  //return "ABCDEF";
}

Let me know if this doesn't help.

Kind regards,
Nedyalko Nikolov
the Telerik team

[Simon]

Sorry for the late answer but you were right about this... it solved my problem.

Thank you!