Custom ValidationSummary template Asp.net MVC 3

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My approach is to use a custom ValidationSummary.cshtml:

@model ModelStateDictionary

@if(!Model.IsValid)
{
    <div class="validation-summary-errors">
        <ul>
            @foreach (var modelError in 
                     Model.SelectMany(keyValuePair => keyValuePair.Value.Errors))
            {
                <li>@modelError.ErrorMessage</li>
            }
        </ul>
    </div>
}

Put this partial view in your Shared folder and refer to it from your code:

@Html.Partial("_ValidationSummary", ViewData.ModelState);

This way you remain in full control of your html.

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