Question

• I use ValidationSummary(true) to print model validation errors in
  one place and property validation errors near each field.

• In the controller i add a property error : ModelState.AddError(“property”,”error”)

  I see the message validation error for that property but i also got the validation-summary-errors div although i have no model error.
  What am i doing wrong and why is that div generated if i have no model errors?

  <div class="validation-summary-errors">
      <ul>
            <li style="display:none"></li>
      </ul>
  </div>
  

Answer 1

You will have to add it twice like so:

string errorMessage = "The error message";
//will show in the summary
ModelState.AddModelError(string.Empty, errorMessage);
//will show for the prop
ModelState.AddModelError("Prop", errorMessage);

Or you can change your call like so:

@Html.ValidationSummary(false)

Changing the argument to false will include all Property errors. The param name in ValidationSummary is excludePropertyErrors, so by passing true you are excluding them.