I know this is 3 years too late 😄 but I was just trying to do the same thing in VB .net. Anyway here is my code developed in VB .net for ArcGIS 10.1 hope it helps others.Duncan
Sub ReloadTableCache(ByRef pTable As ITable)
' QI to IDataset so we can get Table name
Dim pDataset As IDataset
pDataset = DirectCast(pTable, IDataset)
' Get a handle on open tables
Dim pTableWindow As ITableWindow3
pTableWindow = New TableWindowClass
Dim pSet As ISet = Nothing
pTableWindow.FindOpenTableWindows(pSet)
If pSet Is Nothing Then Exit Sub ' No tables open, bail out
' Search open tables and reload cache if table if found
pSet.Reset()
Dim pStandaloneTable As IStandaloneTable
Dim pTW As ITableWindow3
pTW = DirectCast(pSet.Next, ITableWindow3)
Do While Not pTW Is Nothing
pStandaloneTable = pTW.StandaloneTable
If pStandaloneTable.Name = pDataset.Name Then
' Matching table found, reload cache
Dim pTableControl As ITableControl
pTableControl = pTW.TableControl
pTableControl.RemoveAndReloadCache()
Exit Do
End If
pTW = DirectCast(pSet.Next, ITableWindow3)
Loop
End Sub