'宣言 Public Function ValidateParametersAsyncEx() As IAsyncOperationWithProgress(Of List(Of ParameterValidationError),Double)
'使用法 Dim instance As C1PdfDocumentSource Dim value As IAsyncOperationWithProgress(Of List(Of ParameterValidationError),Double) value = instance.ValidateParametersAsyncEx()
public IAsyncOperationWithProgress<List<ParameterValidationError>,double> ValidateParametersAsyncEx()