MessageFilterTable<TFilterData>.TryGetValue Method

Reference

Definition

Namespace:: System.ServiceModel.Dispatcher

Assembly:: System.ServiceModel.dll

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

Boolean

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

Freigeben über