Replace invalid characters

Author: Caitlin Bales

Templates/CSharp/Model/ComplexType.cs.tt

@@ -61,7 +61,7 @@ namespace <#=complex.Namespace.GetNamespaceName()#>
         /// Gets or sets <#=property.Name#>.
 <# if (property.LongDescription != null) {
 #>
-        /// <#=property.LongDescription#>
+        /// <#=property.GetSanitizedLongDescription()#>
 <# } #>
         /// </summary>
         <#=attributeDefinition#>
@@ -76,7 +76,7 @@ namespace <#=complex.Namespace.GetNamespaceName()#>
         /// Gets or sets <#=property.Name#>.
 <# if (property.LongDescription != null) {
 #>
-        /// <#=property.LongDescription#>
+        /// <#=property.GetSanitizedLongDescription()#>
 <# } #>
         /// </summary>
         <#=attributeDefinition#>

Templates/CSharp/Model/EntityType.cs.tt

@@ -88,7 +88,7 @@ namespace <#=entity.Namespace.GetNamespaceName()#>
         /// Gets or sets <#=property.Name.SplitCamelCase().ToLower()#>.
 <# if (property.LongDescription != null) {
 #>
-        /// <#=property.LongDescription#>
+        /// <#=property.GetSanitizedLongDescription()#>
 <# } #>
         /// </summary>
         <#=attributeDefinition#>
@@ -103,7 +103,7 @@ namespace <#=entity.Namespace.GetNamespaceName()#>
         /// Gets or sets <#=property.Name.SplitCamelCase().ToLower()#>.
 <# if (property.LongDescription != null) {
 #>
-        /// <#=property.LongDescription#>
+        /// <#=property.GetSanitizedLongDescription()#>
 <# } #>
         /// </summary>
         <#=attributeDefinition#>
@@ -119,7 +119,7 @@ namespace <#=entity.Namespace.GetNamespaceName()#>
         /// Gets or sets <#=property.Name.SplitCamelCase().ToLower()#>.
 <# if (property.LongDescription != null) {
 #>
-        /// <#=property.LongDescription#>
+        /// <#=property.GetSanitizedLongDescription()#>
 <# } #>
         /// </summary>
         <#=attributeDefinition#>

src/GraphODataTemplateWriter/CodeHelpers/CSharp/TypeHelperCSharp.cs

@@ -211,6 +211,15 @@ public static string GetToLowerFirstCharName(this OdcmProperty property)
             return property.Name.ToLowerFirstChar();
         }
 
+        public static string GetSanitizedLongDescription(this OdcmProperty property)
+        {
+            if (property.LongDescription != null)
+            {
+                return property.LongDescription.Replace("<", "&lt;").Replace(">", "&gt;").Replace("&", "&amp;");
+            }
+            return null;
+        }
+
         public static string GetSanitizedPropertyName(this OdcmProperty property)
         {
             return GetSanitizedPropertyName(property.Name);