Common: Configurable Column Names for Fixed Columns, Helpers for Error Messages, Checks for Datatable contents and environment

GUIs.Common/DocumentResultList/DocumentResultParams.vb

@@ -4,8 +4,15 @@
     ''' </summary>
     Public WindowGuid As String
     Public Results As New List(Of DocumentResult)
+    Public ColumnNames As New ColumnNames
 End Class
 
 Public Class DocumentResult
     Inherits BaseResult
 End Class
+
+Public Class ColumnNames
+    Public ObjectIdColumn As String = "DocId"
+    Public FullPathColumn As String = "FULL_PATH"
+    Public FilenameColumn As String = "Filename"
+End Class