DataConnectionSupport.RaiseStateChanged 方法

引发可在封闭 DataConnection 实例的状态更改事件。

命名空间： Microsoft.VisualStudio.Data
程序集： Microsoft.VisualStudio.Data（在 Microsoft.VisualStudio.Data.dll 中）

语法

声明
Protected Sub RaiseStateChanged ( _
    oldState As DataConnectionState, _
    newState As DataConnectionState _
)

protected void RaiseStateChanged(
    DataConnectionState oldState,
    DataConnectionState newState
)

protected:
void RaiseStateChanged(
    DataConnectionState oldState, 
    DataConnectionState newState
)

member RaiseStateChanged : 
        oldState:DataConnectionState * 
        newState:DataConnectionState -> unit

protected function RaiseStateChanged(
    oldState : DataConnectionState, 
    newState : DataConnectionState
)

oldState
类型：Microsoft.VisualStudio.Data.DataConnectionState
连接的状态在引发 StateChanged 操作之前的。

newState
类型：Microsoft.VisualStudio.Data.DataConnectionState
连接的状态继引发 StateChanged 事件的后面。

DataConnectionState 选件类的默认实现提供三种状态: open、 closed和 broken。