将Class作为参数传递给图像单击事件处理程序

Question

我有一个Trip对象，该对象是从TripsByTripIds列表中获取的，我希望将其作为参数传递给下面的图像单击事件处理程序。 我如何通过？

  foreach (Tripclass Trip in TripsByTripIds )
  {
      ImageButton imageButton = new ImageButton();
      imageButton.ImageUrl = "~/" +Trip.CorridorName+"/"+Trip.Time+"/"+Trip.ImgFileName;
      imageButton.Height = Unit.Pixel(100);
      imageButton.Style.Add("padding", "5px");
      imageButton.Width = Unit.Pixel(100);
      imageButton.Click += new ImageClickEventHandler(imageButton_Click);
      AMSPanel1.Controls.Add(imageButton);
      AMSPanel1.Height = Unit.Pixel(860);
  }

  protected void imageButton_Click(object sender, ImageClickEventArgs fi)
  {
      testimage.ImageUrl = ((ImageButton)sender).ImageUrl;
      lblTime.Text = Trip.Time; 
      lblLocation.Text = Trip.Location; //can't access trip object here
  }    

Answer 1

我前几天从堆栈中的一个帖子中找到答案。我还没有保存该链接。 但是下面的解决方案解决了我的问题

  foreach (Tripclass Trip in TripsByTripIds )
  {
      ImageButton imageButton = new ImageButton();
      imageButton.ImageUrl = "~/" + Trip.CorridorName + "/" + Trip.Time + "/" + Trip.ImgFileName;
      imageButton.Height = Unit.Pixel(100);
      imageButton.Style.Add("padding", "5px");
      imageButton.Width = Unit.Pixel(100);
      imageButton.Click += new ImageClickEventHandler((a, b) => imageButton_Click(a, b,Trip));
      AMSPanel1.Controls.Add(imageButton);
      AMSPanel1.Height = Unit.Pixel(860);
  }

  protected void imageButton_Click(object sender, ImageClickEventArgs e, Tripclass Trip)
  {
      testimage.ImageUrl = ((ImageButton)sender).ImageUrl;
      lblTime.Text = Trip.Time; 
      lblLocation.Text = Trip.Location; //I can access trip object here
  }   

Answer 2

如果可以将其表示为文本，则可以将其值添加到CommandArgument属性