ReadOnly Property IsTrial As Boolean

bool IsTrial {get;}

// Create a workbook set.
            SpreadsheetGear.IWorkbookSet workbookSet = SpreadsheetGear.Factory.GetWorkbookSet();
 
            // Assert that this is not an evaluation/trial version of SpreadsheetGear.
            System.Diagnostics.Debug.Assert(!workbookSet.IsTrial);

' Create a workbook set.
            Dim workbookSet As IWorkbookSet = Factory.GetWorkbookSet()
 
            ' Assert that this is not an evaluation/trial version of SpreadsheetGear.
            System.Diagnostics.Debug.Assert(Not workbookSet.IsTrial)