ClipboardWatcher, Common: Improve checking for client

GUIs.ClipboardWatcher/ProfileSearches.vb

@@ -15,6 +15,7 @@ Public Class ProfileSearches
     Private ReadOnly _Environment As Environment
     Private ReadOnly _Client As Client
     Private ReadOnly _ClipboardContents As String
+    Private ReadOnly _ClientIsOnline As Boolean = False
 
     Public Class Search
         Public Guid As Integer
@@ -30,8 +31,10 @@ Public Class ProfileSearches
 
         _Environment = pEnvironment
         _ClipboardContents = pClipboardContents
+        _ClientIsOnline = _Environment.Service.Client IsNot Nothing AndAlso _Environment.Service.Client.IsOnline = True
+
         Try
-            If _Environment.Service.Client IsNot Nothing AndAlso _Environment.Service.Client.IsOnline = True Then
+            If _ClientIsOnline Then
                 Try
                     Dim oSplit() As String = _Environment.Service.Address.Split(":")
                     Dim oAppServerAddress As String = oSplit(0)
@@ -89,7 +92,8 @@ Public Class ProfileSearches
     Private Function DoLoadDocumentSearches(ProfileId As Integer) As List(Of Search)
         Dim oSQL As String = $"SELECT * FROM TBCW_PROF_DOC_SEARCH WHERE ACTIVE = 1 AND PROFILE_ID = {ProfileId} ORDER BY TAB_INDEX"
         Dim oSearchesDataTable As DataTable
-        If _Environment.Service.Client.IsOnline = True Then
+
+        If _ClientIsOnline Then
             Dim oTableResult As TableResult = _Client.GetDatatableByName("TBCW_PROF_DOC_SEARCH", $"PROFILE_ID = {ProfileId} AND ACTIVE = 1", "TAB_INDEX")
             oSearchesDataTable = oTableResult.Table
             If oSearchesDataTable Is Nothing Then
@@ -99,6 +103,7 @@ Public Class ProfileSearches
         Else
             oSearchesDataTable = _Environment.Database.GetDatatable(oSQL)
         End If
+
         Dim oDocSearches As New List(Of Search)
         If Not IsNothing(oSearchesDataTable) Then
             Dim oCounter As Integer = 0
@@ -154,7 +159,7 @@ Public Class ProfileSearches
         Try
             Dim oSQL As String = $"SELECT * FROM TBCW_PROF_DATA_SEARCH WHERE ACTIVE = 1 AND PROFILE_ID = {ProfileId} ORDER BY TAB_INDEX"
             Dim oSearchesDataTable As DataTable
-            If _Environment.Service.Client.IsOnline = True Then
+            If _ClientIsOnline Then
                 Dim oTableResult As TableResult = _Client.GetDatatableByName("TBCW_PROF_DATA_SEARCH", $"PROFILE_ID = {ProfileId} AND ACTIVE = 1", "TAB_INDEX")
                 oSearchesDataTable = oTableResult.Table
                 If oSearchesDataTable Is Nothing Then

GUIs.Common/DocumentResultList/frmDocumentResultList.vb

@@ -55,6 +55,8 @@ Public Class frmDocumentResultList
     Private Property ResultLists As List(Of DocumentResult)
 
     Private IsLoading As Boolean = True
+    Private ClientIsOnline As Boolean = False
+
     Private _DragBoxFromMouseDown As Rectangle
     Private _ScreenOffset As Point
     Private _CurrentDocument As DocumentResultList.Document = Nothing
@@ -125,17 +127,28 @@ Public Class frmDocumentResultList
     End Sub
 
     Private Function GetOperationMode() As OperationMode
-        Dim oOperationMode As OperationMode
+        Dim oOperationMode As OperationMode = OperationMode.NoAppServer
 
-        If Environment.Service IsNot Nothing AndAlso Environment.Service.Client.IsOnline AndAlso Environment.Service.Address <> String.Empty Then
-            oOperationMode = OperationMode.WithAppServer
-        Else
-            oOperationMode = OperationMode.NoAppServer
-        End If
+        Try
+            If Environment.Service.Client IsNot Nothing AndAlso Environment.Service.Client.IsOnline Then
+                oOperationMode = OperationMode.WithAppServer
+            Else
+                oOperationMode = OperationMode.NoAppServer
+            End If
 
-        If Params.OperationModeOverride <> OperationMode.None Then
-            oOperationMode = Params.OperationModeOverride
-        End If
+            Logger.Debug("OperationMode set to [{0}]", oOperationMode)
+
+            If Params.OperationModeOverride <> OperationMode.None Then
+                Logger.Debug("Overriding OperationMode with [{0}]", Params.OperationModeOverride)
+                oOperationMode = Params.OperationModeOverride
+            End If
+
+            Logger.Debug("OperationMode is now [{0}]", oOperationMode)
+
+        Catch ex As Exception
+            Logger.Error(ex)
+            Logger.Warn("Error while determining OperationMode. Setting to [{0}]", oOperationMode)
+        End Try
 
         Return oOperationMode
     End Function