Added FailOnMatch to XPath Validation Rule

@@ -412,6 +412,7 @@ The extraction rule was created under the following request:
                     validationTextReference.Type = typeof(XPathValidationRule);
                     validationTextReference.Type = typeof(XPathValidationRule);
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("XPathToSearch", this.XPathTextBox.Text));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("XPathToSearch", this.XPathTextBox.Text));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("Index", "0"));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("Index", "0"));
+                    validationTextReference.Properties.Add(new PluginOrRuleProperty("FailOnMatch", "False"));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("IgnoreCase", "True"));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("IgnoreCase", "True"));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("ExpectedValue", expectedValue));
                     validationTextReference.Properties.Add(new PluginOrRuleProperty("ExpectedValue", expectedValue));
 
 

@@ -60,6 +60,15 @@ namespace WebTest.WebService.Plugin.Runtime
             set { ignoreCase = value; }
             set { ignoreCase = value; }
         }
         }
 
 
+        private bool failOnMatch = false;
+        [DisplayName("FailOnMatch")]
+        [Description("Fails the validation if the xpath evaluates to the expected value. If it does not, or the xpath does not exist, the validation passes.")]
+        public bool FailOnMatch
+        {
+            get { return failOnMatch; }
+            set { failOnMatch = value; }
+        }
+
         /// <summary>
         /// <summary>
         /// The Validation method.  The parameter e contains the Web test context.
         /// The Validation method.  The parameter e contains the Web test context.
         /// </summary>
         /// </summary>
@@ -86,6 +95,7 @@ namespace WebTest.WebService.Plugin.Runtime
 
 
                 XPathNodeIterator iterator = contentHandler.EvaluateXPath(XPathToSearch);
                 XPathNodeIterator iterator = contentHandler.EvaluateXPath(XPathToSearch);
                 int i = 0;
                 int i = 0;
+                bool found = false;
                 while (iterator.MoveNext())
                 while (iterator.MoveNext())
                 {
                 {
                     XPathNavigator nav2 = iterator.Current.Clone();
                     XPathNavigator nav2 = iterator.Current.Clone();
@@ -104,15 +114,22 @@ namespace WebTest.WebService.Plugin.Runtime
 
 
                         if (ignoreCase)
                         if (ignoreCase)
                         {
                         {
-                            e.IsValid = ExpectedValue.Equals(value, StringComparison.OrdinalIgnoreCase);
+                            found = ExpectedValue.Equals(value, StringComparison.OrdinalIgnoreCase);
                         }
                         }
                         else
                         else
                         {
                         {
-                            e.IsValid = ExpectedValue.Equals(value, StringComparison.Ordinal);
+                            found = ExpectedValue.Equals(value, StringComparison.Ordinal);
                         }
                         }
 
 
-                        if (i == Index || e.IsValid)
+                        if (i == Index || found)
+                        {
+                            if(failOnMatch)
+                            {
+                                e.IsValid = false;
+                            } else
                             {
                             {
+                                e.IsValid = true;
+                            }
                             return;
                             return;
                         }
                         }
                     }
                     }
@@ -124,7 +141,15 @@ namespace WebTest.WebService.Plugin.Runtime
                 e.Message = ex.Message;
                 e.Message = ex.Message;
             }
             }
 
 
+            // No match or no content
+            if (failOnMatch)
+            {
+                e.IsValid = true;
+            }
+            else
+            {
                 e.IsValid = false;
                 e.IsValid = false;
+            }
             return;
             return;
         }
         }
     }
     }