Any solution for this?

How to resolve this "Validation occurs after the RowAdding event, thus, b/c you're canceling the add, no validation occurs..."

I think the attributes if it is integer/decimal value have to be given as [Range(typeof(...)...]

So i gave this for my combo's id and it works.

But the row gets added inspite of the values not entered and the error message is getting displayed after the newly added row is getting added to grid

It does not display when its add new row

Any pointers

Yes the sample is same for add row but the original one has combo

The validation occurs for textboxes(i.e if i give [Required] attribute for the controls that are textboxes but not for the combo

If this is for the same application as your last question about RowAdded not firing, then the same thing applies. 

Validation occurs after the RowAdding event, thus, b/c you're canceling the add, no validation occurs.

-SteveZ