'宣言 Public Function GenerateAsyncEx() As C1.Win.Document.IAsyncActionWithProgress(Of Double)
'使用法 Dim instance As C1FlexReport Dim value As C1.Win.Document.IAsyncActionWithProgress(Of Double) value = instance.GenerateAsyncEx()
public C1.Win.Document.IAsyncActionWithProgress<double> GenerateAsyncEx()