来自toolStrip的C#DragDrop

时间:2013-03-12 14:39:51

标签: c# drag-and-drop toolstrip

我正在寻找一种方法来确定在DragDrop事件发生后拖动的toolStrip中的哪个项目,我想要做的就是为工具条中的每个项目制作一个具有不同情况的开关案例,但我似乎无法找到一种比较它们的方法。

更新:简短的代码示例

private void toolStrip1_DragDrop(object sender, DragEventArgs e)
{
    //Here I want something like a DoDragDrop() and send the specific item from the
    //toolstrip..
}

private void panel1_MouseUp(object sender, MouseEventArgs e)
{
    //And here some way to determine which of the items was dragged 
    //(I'm not completely sure if I need a mouseUp event though..)
}

希望能更轻松地获得我想要做的事情。

1 个答案:

答案 0 :(得分:3)

示例中的事件看起来不像要使用的正确事件。

以下是ToolStrip上的一个工作示例,其上有2个ToolStripButtons:

public Form1() {
  InitializeComponent();
  toolStripButton1.MouseDown += toolStripButton_MouseDown;
  toolStripButton2.MouseDown += toolStripButton_MouseDown;

  panel1.DragEnter += panel1_DragEnter;
  panel1.DragDrop += panel1_DragDrop;
}

void toolStripButton_MouseDown(object sender, MouseEventArgs e) {
  this.DoDragDrop(sender, DragDropEffects.Copy);
}

void panel1_DragEnter(object sender, DragEventArgs e) {
  e.Effect = DragDropEffects.Copy;
}

void panel1_DragDrop(object sender, DragEventArgs e) {
  ToolStripButton button = e.Data.GetData(typeof(ToolStripButton))
                           as ToolStripButton;
  if (button != null) {
    if (button.Equals(toolStripButton1)) {
      MessageBox.Show("Dragged and dropped Button 1");
    } else if (button.Equals(toolStripButton2)) {
      MessageBox.Show("Dragged and dropped Button 2");
    }
  }
}