How to have no validation when selecting a value on dropdown

Question

On this form to create a link when I select another committee type the form validates for all of the blank fields that are required. I am trying to figure out a way so those fields don't validate when I select another committee type in the dropdown. Currently when I debug it doesn't get to the post action method in the controller for obvious reasons that the form validates before even getting into the controller.

If you need to see more code like the action method in controller or view model I can provide that as well.

View

    <div class="form-group col-md-8">
       <div asp-validation-summary="All" id="validation-error" class="text-danger custom-validation- 
        summary"></div>
     </div>

     <input id="link-id" asp-for="@Model.LinkId" type="hidden" />
     <input name="FetchCategories" type="hidden"/>
    <div class="form-group col-md-8 col-lg-4">
      <div class="form-group">
           @{
        var authorizedCommitteeTypes = await Model.CommitteeType
            .ToSelectListAsync(AuthorizationService, User, AuthRequirements.AdminCommitteeType);

        if (authorizedCommitteeTypes.Count == 1)
        {
            <input id="committeeType" name="committeeType" type="hidden" 
            value="@authorizedCommitteeTypes.FirstOrDefault()?.Value" />
        }
        else
        {
            <label class="control-label">Committee Type</label>
            <select id="add-edit-committee-type"
                    name="committeeType"
                    asp-for="@Model.CommitteeType"
                    asp-items="@authorizedCommitteeTypes"
                    class="form-control">
            </select>
        }
    }
       </div>
  </div>
    <div class="form-group col-md-8 col-lg-4">
     <label class="control-label">Category</label>
   @{
    if (Model != null && Model.AvailableCategories != null)
       {
         var availableCategories =
            new SelectList(
                Model.AvailableCategories.OrderBy(c => c.Order),
                dataValueField: "CategoryId",
                dataTextField: "Title",
                selectedValue: Model.CategoryId);

        <select id="dropdown-linkCategories" required
                asp-for="@Model.CategoryId"
                asp-items="@availableCategories"
                class="form-control">
            <option>-- Select --</option>
        </select>
       }
      else
       {
        <select id="dropdown-linkCategories"
                class="form-control">
            <option>-- Select --</option>
        </select>
        }
      }
     </div>


   <div class="form-group col-md-8 col-lg-4">
    <label class="control-label">Title</label>
  <input id="title" asp-for="Title" name="Title" class="form-control" />
 </div>

 <div class="form-group col-md-8 col-lg-4">
    <label class="control-label">Display Order</label>
   <div>
     <input id="order" asp-for="Order" name="Order" class="form-control" />
     </div>
  </div>

   <div class="form-group col-md-8 col-lg-4">
    <label class="control-label">URL</label>
     <input id="url" asp-for="URL" name="URL" class="form-control" />
 </div>

 <div class="form-group col-md-8 col-lg-12">
   <label class="control-label">Description</label>
     <textarea class="rtextDescription" name="Description" id="Description" row="1" cols="60"
          data-val-maxlength-max="200" asp-for="Description"
          data-val-maxlength="Max length for Description is 200"></textarea>
   </div>

  @{

    if (Model.LinkId == 0)
    {
        <div class="form-group col-md-12">
            <input type="submit" id="link-submit"
                   class="btn btn-forum col-sm-12 col-md-2 col-lg-2"
                   value="Add" />
            <a asp-area="Admin"
               asp-controller="Link"
               asp-action="Index"
               class="btn btn-forum col-sm-12 col-md-2 col-lg-2">Back to Links</a>
        </div>
    }
    else
    {
        <div class="form-group col-md-8 col-lg-12">
            <input type="submit" value="Save" id="edit-submit"
                   class="btn btn-forum col-sm-12 col-md-2 col-lg-2" />

            <a asp-area="Admin"
                asp-controller="Link"
               asp-action="Index"
               class="btn btn-forum col-sm-12 col-md-2 col-lg-2">Back to Links</a>
         </div>
      }
  }

JS

$(document).on("change", "#form-create-link #add-edit-committee-type", function () {
$('input[name="FetchCategories"]').val(true);  
$(this).closest('form').submit()
});