EventDescriptorCollection.Find(String, Boolean) 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
获取集合中具有指定名称的事件的说明。
public:
virtual System::ComponentModel::EventDescriptor ^ Find(System::String ^ name, bool ignoreCase);public virtual System.ComponentModel.EventDescriptor? Find(string name, bool ignoreCase);public virtual System.ComponentModel.EventDescriptor Find(string name, bool ignoreCase);abstract member Find : string * bool -> System.ComponentModel.EventDescriptor
override this.Find : string * bool -> System.ComponentModel.EventDescriptorPublic Overridable Function Find (name As String, ignoreCase As Boolean) As EventDescriptor参数
- name
- String
要从集合中获取的事件的名称。
- ignoreCase
- Boolean
true 如果想要忽略事件的情况，则为否则，为 false.
返回
EventDescriptor具有指定名称或null事件不存在。
示例
下面的代码示例查找特定的 EventDescriptor。 它在文本框中打印此 EventDescriptor 组件的类型。 它要求 button1 并在 textBox1 窗体上实例化。
private:
void FindEvent()
{
// Creates a new collection and assigns it the events for button1.
EventDescriptorCollection^ events = TypeDescriptor::GetEvents( button1 );
// Sets an EventDescriptor to the specific event.
EventDescriptor^ myEvent = events->Find( "Resize", false );
// Prints the event name and event description.
textBox1->Text = String::Concat( myEvent->Name, ": ", myEvent->Description );
}
void FindEvent()
{
// Creates a new collection and assigns it the events for button1.
EventDescriptorCollection events = TypeDescriptor.GetEvents(button1);
// Sets an EventDescriptor to the specific event.
EventDescriptor myEvent = events.Find("Resize", false);
// Prints the event name and event description.
textBox1.Text = myEvent.Name + ": " + myEvent.Description;
}
Private Sub FindEvent()
' Creates a new collection and assigns it the events for button1.
Dim events As EventDescriptorCollection = TypeDescriptor.GetEvents(button1)
' Sets an EventDescriptor to the specific event.
Dim myEvent As EventDescriptor = events.Find("Resize", False)
' Prints the event name and event description.
textBox1.Text = myEvent.Name & ": " & myEvent.Description
End Sub
注解
注释
HostProtectionAttribute应用于此类的属性具有以下Resources属性值： Synchronization 这 HostProtectionAttribute 不会影响桌面应用程序（通常通过双击图标、键入命令或在浏览器中输入 URL 来启动）。 有关详细信息，请参阅 HostProtectionAttribute 类或 SQL Server 编程和主机保护属性。
