Hello, I am using SaveAsXML() to persist grid settings that include a very simple operator condition (i.e. if x = y then change bg color to red).  However every time I load the settings from XML, I get the following exception.  If I remove the conditional format and save grid settings then the LoadFromXML() method works fine.  I am afraid the error message does not give me too much to work with.....

By the way, I was able to reproduce this error in your sample app.  I added two buttons to the frmConditionalFormatting.vb form.  One button calls SaveAsXML() the other calls LoadFromXML().  After the form is loaded, I called the first button to save settings and then subsequently called the second button to load settings.  I got the same exception shown attached below.

 "System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Collections.Hashtable.HashtableEnumerator..ctor(Hashtable hashtable, Int32 getObjRetType)
   at System.Collections.Hashtable.ValueCollection.GetEnumerator()
   at Infragistics.Win.ConditionValueAppearance..ctor(SerializationInfo info, StreamingContext context)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle._SerializationInvoke(Object target, SignatureStruct& declaringTypeSig, SerializationInfo info, StreamingContext context)
   at System.RuntimeMethodHandle.SerializationInvoke(Object target, SignatureStruct declaringTypeSig, SerializationInfo info, StreamingContext context)
   at System.Reflection.RuntimeConstructorInfo.SerializationInvoke(Object target, SerializationInfo info, StreamingContext context)
   at System.Runtime.Serialization.ObjectManager.CompleteISerializableObject(Object obj, SerializationInfo info, StreamingContext context)
   at System.Runtime.Serialization.ObjectManager.FixupSpecialObject(ObjectHolder holder)
   at System.Runtime.Serialization.ObjectManager.DoFixups()
   at System.Runtime.Serialization.Formatters.Soap.ObjectReader.Deserialize(HeaderHandler handler, ISerParser serParser)
   at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize(Stream serializationStream, HeaderHandler handler)
   at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize(Stream serializationStream)
   at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadHelper(Stream stream, PropertyCategories propertyCategories, IFormatter formatter)
   at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadFromXml(Stream stream, PropertyCategories propertyCategories)
   at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadFromXml(String filename)
   at DirectTrucking.frmList.TestToolStripMenuItem_Click(Object sender, EventArgs e) in C:\Documents and Settings\DevUser1\My Documents\Visual Studio 2005\Projects\XXXXXXX\TestProject\TestForm1.vb:line 251"