ASP.NET MVC we use client side validation using jQuery.validate plugin, which will be based on Model – Data Annotation validation attributes.

In some cases we might want to disable such validation on a button click wherever it is not needed.

For example:

The below code block will register validation block for Title property in the Model, will result in client side validations fired when user click on button.

<div class="editor-field">
          @Html.EditorFor(model => model.Title)
          @Html.ValidationMessageFor(model => model.Title)
     </div>
<input type="submit" name="backButton" value="Back" title="Go back to Prev step." /> 

We can disable the client side validation check for a button using the “disableValidation=true” attribute for the button.

<script type="text/javascript">
  document.getElementById("backButton").disableValidation = true;
</script>

OR

<input type="submit" name="backButton" value="Back" 
 title="Go back to Prev Step" disableValidation="true" />

OR

You disable client-side validation on a button by adding the css style class “cancel” to it.

That will look like below example:

<input type="submit" name="backButton" value="Back"
 title="Go back to Prev Step" class="mybtn-style cancel" />

These are the different ways you can disable the client side validations. Hope it was helpful.