Question

我使用下面的代码来使用服务参考：

var myService = new MyService.MyServiceClient();
myService.DeleteOCDFCompleted += MyServiceDeleteOCDFComplete;
myService.DeleteOCDF(OCDF.OcdfId);

void MyServiceDeleteOCDFComplete(object sender, MyService.DeleteOCDFCompletedEventArgs e)
{
//  OCDFList.Remote(**ocdf that deleted**);
  MessageBox.Show("Delete Completed successfully.");
}

我想从列表中删除已删除的对象，但如何确定MyServiceDeleteOCDFComplete函数中已删除的参数。

换句话说：如何将额外参数发送到服务引用事件。

提前感谢。

Answer 1

您可以使用DeleteOCDF方法的附加参数（称为userState）。该参数可以是任何对象，它将在UserState属性中传递给事件处理程序。

var myService = new MyService.MyServiceClient();
myService.DeleteOCDFCompleted += MyServiceDeleteOCDFComplete;
myService.DeleteOCDF(OCDF.OcdfId, OCDF.OcdfId);

void MyServiceDeleteOCDFComplete(object sender, MyService.DeleteOCDFCompletedEventArgs e)
{
    int ocdfId = (int)e.UserState;
    MessageBox.Show("Delete Completed successfully.");
}

服务引用中的额外参数

1 个答案: