DesignerVerbCollection.Contains(DesignerVerb) 方法

定义

获取一个值,用以指示集合中是否存在指定的 DesignerVerbGets a value indicating whether the specified DesignerVerb exists in the collection.

public:
 bool Contains(System::ComponentModel::Design::DesignerVerb ^ value);
public bool Contains (System.ComponentModel.Design.DesignerVerb value);
member this.Contains : System.ComponentModel.Design.DesignerVerb -> bool
Public Function Contains (value As DesignerVerb) As Boolean

参数

value
DesignerVerb

要在集合中搜索的 DesignerVerbThe DesignerVerb to search for in the collection.

返回

Boolean

如果集合中存在指定对象,则为 true;否则为 falsetrue if the specified object exists in the collection; otherwise, false.

示例

下面的示例使用 Contains 方法来搜索特定对象的状态 DesignerVerb ,并随后检索找到它的索引值。The following example uses the Contains method to search for the presence of a specific DesignerVerb object and subsequently retrieves the index value at which it was found.

// Tests for the presence of a DesignerVerb in the collection,
// and retrieves its index if it is found.
DesignerVerb^ testVerb = gcnew DesignerVerb( "Example designer verb", gcnew EventHandler( this, &Class1::ExampleEvent ) );
int itemIndex = -1;
if ( collection->Contains( testVerb ) )
         itemIndex = collection->IndexOf( testVerb );
// Tests for the presence of a DesignerVerb in the collection, 
// and retrieves its index if it is found.
DesignerVerb testVerb = new DesignerVerb("Example designer verb", new EventHandler(this.ExampleEvent));
int itemIndex = -1;
if( collection.Contains( testVerb ) )
    itemIndex = collection.IndexOf( testVerb );
' Tests for the presence of a DesignerVerb in the collection, 
' and retrieves its index if it is found.
Dim testVerb As New DesignerVerb("Example designer verb", New EventHandler(AddressOf Me.ExampleEvent))
Dim itemIndex As Integer = -1
If collection.Contains(testVerb) Then
    itemIndex = collection.IndexOf(testVerb)
End If

适用于