DesignerVerbCollection.Contains(DesignerVerb) 方法

定义

命名空间:

System.ComponentModel.Design

程序集:

System.ComponentModel.TypeConverter.dll

Source:

DesignerVerbCollection.cs

获取一个值，用以指示集合中是否存在指定的 DesignerVerb。

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 DesignerVerb。

返回

Boolean

如果集合中存在指定对象，则为 true；否则为 false。

示例

以下示例使用 Contains 方法搜索是否存在特定 DesignerVerb 对象，然后检索找到该对象的索引值。

// 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