C# XML Parse string

Question

I trying to parse this xml string :

<form name="generatedForm" role="form">  <div class="form-group">    <label for="result">      Calculation Result    </label>    <input class="form-control" name="result" cam-variable-type="Long" cam-variable-name="result" type="text" />    <div ng-if="this.generatedForm.result.$invalid && this.generatedForm.result.$dirty" class="has-error">      <div ng-show="this.generatedForm.result.$error.required" class="help-block">        Required field      </div>      <div ng-show="this.generatedForm.result.$error.camVariableType" class="help-block">        Only a long value is allowed      </div>    </div>  </div>  <div class="form-group">    <label for="correcto">      es correcto?    </label>    <input class="form-control" name="correcto" cam-business-key type="checkbox" />    <div ng-if="this.generatedForm.correcto.$invalid && this.generatedForm.correcto.$dirty" class="has-error">      <div ng-show="this.generatedForm.correcto.$error.required" class="help-block">        Required field      </div>      <div ng-show="this.generatedForm.correcto.$error.camVariableType" class="help-block">        Only a boolean value is allowed      </div>    </div>  </div></form>

The code what I'm using is :

var x =XDocument.Parse("XmlString");

But i recieving System.Xml.XmlException: 'An error occurred while parsing EntityName. Line 1, position 290.'

I tried changig the encoding but the result is the same.

Thanks in advance.