Control.ControlCollection.IList.Add(Object) Control.ControlCollection.IList.Add(Object) Control.ControlCollection.IList.Add(Object) Method

定义

有关此成员的说明,请参见 Add(Object)For a description of this member, see Add(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.Add(System::Object ^ control) = System::Collections::IList::Add;
int IList.Add (object control);
Function Add (control As Object) As Integer Implements IList.Add

参数

control
Object Object Object

要添加到该集合中的对象。The object to add to this collection.

返回

插入了新元素的位置,-1 指示该项未插入到集合中。The position into which the new element was inserted, or -1 to indicate that the item was not inserted into the collection.

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