ModelState.AddModelError showing error twice

Question

Hi Experts,

With MVC stuff when there is an error on property leve, we can add error to modelstate but the same error is added to the summary also. How can we avoid to display it twice.

I want to display only public errors in the message summary and all other at property level.

Regards Parminder

Answer 1

When defining your validation summary set the first parameter to true which means Exclude Property Errors.

Eg:

<%= Html.ValidationSummary(true, "Unable to save item. Please correct the errors and try again.")%>

From MSDN:

excludePropertyErrors Type: System.Boolean

true to have the summary display model-level errors only, or false to have the summary display all errors.