MessageFilterTable<TFilterData>.TryGetValue Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Checks whether a filter is stored in the filter table.
public:
virtual bool TryGetValue(System::ServiceModel::Dispatcher::MessageFilter ^ filter, [Runtime::InteropServices::Out] TFilterData % data);
public bool TryGetValue (System.ServiceModel.Dispatcher.MessageFilter filter, out TFilterData data);
abstract member TryGetValue : System.ServiceModel.Dispatcher.MessageFilter * 'FilterData -> bool
override this.TryGetValue : System.ServiceModel.Dispatcher.MessageFilter * 'FilterData -> bool
Public Function TryGetValue (filter As MessageFilter, ByRef data As TFilterData) As Boolean
Parameters
- filter
- MessageFilter
The filter
that is used as a key to retrieve the data.
- data
- TFilterData
The data
associated with the filter
.
Returns
true
if there is a filter in the filter table that has data associated with it; otherwise false
.
Remarks
This method is an efficient way to check whether a filter is in the filter table because when the filter is not present, it returns false
instead of throwing an exception. If you try to retrieve the filter from the table and it is not there, an exception is thrown.
Applies to
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈