DataRow and ColumnError property

How do I utilise this.
I do:

VB Code:

Public Function ValidateFields(ByRef Data As Mowlem.Booking.BusinessRules.BookingData.BookingEditRow) As Boolean
        If Data.AssetKey < 1 Then
            Data.SetColumnError("AssetKey", "Required")
        End If
 
        'Blah blah blah
 
End function

So I validate the row, and add errors to it.
How do i show these in the UI?
What I mean is, can .NET automatically bind these or something, or do i manually have to write code to handle and display these errors?

Woka

Your datarow has the seterror method, which should throw an exception.

Errr...I can set the error message for a datarow, but I am setting them for each datacolumn.
I was wondering if .NET handled this automatically with out me writting extra plumbing code to display this column errors.

I can set the error for a datarow, but this doesn't automatically throw an error. I would have to write code to handle thius?

Woof

Ok, if you want an exception to be thrown automatically, that won't happen. The error description gets stored with the column and you can use GetColumnError() to get the error associated there. But if you want it to be thrown so that you must explicitly handle it, then you'd have to override or create a few new methods.