Allow null default selected values

Author: programcsharp

Build/CommonAssemblyInfo.cs

@@ -15,5 +15,5 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.0.60.0")]
-[assembly: AssemblyFileVersion("1.0.70.0")]
+[assembly: AssemblyVersion("1.0.61.0")]
+[assembly: AssemblyFileVersion("1.0.61.0")]

Griddly.Mvc/GriddlyFilter.cs

@@ -126,10 +126,18 @@ public void SetSelectedItems(object value)
                     {
                         foreach (object valueObject in defaultValues)
                         {
-                            string valueString = valueObject.ToString();
-
-                            foreach (SelectListItem item in SelectableItems.Where(x => x.Value == valueString))
-                                item.Selected = true;
+                            if (valueObject != null)
+                            {
+                                string valueString = valueObject.ToString();
+
+                                foreach (SelectListItem item in SelectableItems.Where(x => x.Value == valueString))
+                                    item.Selected = true;
+                            }
+                            else
+                            {
+                                foreach (SelectListItem item in SelectableItems.Where(x => string.IsNullOrWhiteSpace(x.Value)))
+                                    item.Selected = true;
+                            }
                         }
                     }
                 }