void AddNonGacReference(ProjectReference refInfo)
 {
     gacRefPanel.SignalRefChange (refInfo.Reference, true);
     projectRefPanel.SignalRefChange (refInfo.Reference, true);
     refTreeStore.AppendValues (System.IO.Path.GetFileName (refInfo.Reference), refInfo.ReferenceType.ToString (), System.IO.Path.GetFullPath (refInfo.GetReferencedFileName ()), refInfo);
 }
 void AddGacReference(ProjectReference refInfo, Project referencedProject)
 {
     gacRefPanel.SignalRefChange (refInfo.Reference, true);
     projectRefPanel.SignalRefChange (refInfo.Reference, true);
     refTreeStore.AppendValues (System.IO.Path.GetFileNameWithoutExtension (refInfo.GetReferencedFileName ()), refInfo.ReferenceType.ToString (), refInfo.Reference, refInfo);
 }