Control.ControlCollection.IList.IndexOf(Object) 方法

定义

有关此成员的说明,请参见 IndexOf(Object)For a description of this member, see IndexOf(Object).

此 API 支持产品基础结构,不能在代码中直接使用。

 virtual int System.Collections.IList.IndexOf(System::Object ^ control) = System::Collections::IList::IndexOf;
int IList.IndexOf (object control);
Function IndexOf (control As Object) As Integer Implements IList.IndexOf

参数

control
Object

要在 Control.ControlCollection 中定位的对象。The object to locate in the Control.ControlCollection.

返回

如果在 Control.ControlCollection 中找到,则为 control 的索引;否则为 -1。The index of control if found in the Control.ControlCollection; otherwise, -1.

实现

注解

此成员是显式接口成员的实现。This member is an explicit interface member implementation. 它只能在 Control.ControlCollection 实例被强制转换为 IList 接口时使用。It can be used only when the Control.ControlCollection instance is cast to an IList interface.

适用于