用什么方法可以得到移动到窗体上方的文件的路径
如题 --------------------编程问答-------------------- 意思是拖动到窗体上的文件吧，看看下面msdn中的例子吧下面的代码示例使用户能够将图像或图像文件拖到窗体上，并使它在放置点显示。每次绘制窗体时，都重写 OnPaint 方法以重新绘制图像；否则图像将保持到下一次重新绘制。DragEnter 事件处理方法决定拖到窗体中的数据的类型，并提供适当的反馈。如果 Image 可以从该数据中创建，则 DragDrop 事件处理方法就会在该窗体上显示此图像。因为 DragEventArgs.X 和 DragEventArgs.Y 值为屏幕坐标，所以示例使用 PointToClient 方法将它们转换成工作区坐标。
--------------------编程问答-------------------- 设置窗体允许Drag事件,然后在对应的拖动事件书写代码(DragEnter,DragDrop),具体代码可以参见ls的 --------------------编程问答-------------------- lz要干嘛？ --------------------编程问答-------------------- 这个简单啊,网上搜一下就得到答案了. --------------------编程问答-------------------- LZ的意思是，拖动一个文件到程序上打开吗？
private Image picture;
private Point pictureLocation;
public Form1()
{
// Enable drag-and-drop operations and
// add handlers for DragEnter and DragDrop.
this.AllowDrop = true;
this.DragDrop += new DragEventHandler(this.Form1_DragDrop);
this.DragEnter += new DragEventHandler(this.Form1_DragEnter);
}
protected override void OnPaint(PaintEventArgs e)
{
// If there is an image and it has a location,
// paint it when the Form is repainted.
base.OnPaint(e);
if(this.picture != null && this.pictureLocation != Point.Empty)
{
e.Graphics.DrawImage(this.picture, this.pictureLocation);
}
}
private void Form1_DragDrop(object sender, DragEventArgs e)
{
// Handle FileDrop data.
if(e.Data.GetDataPresent(DataFormats.FileDrop) )
{
// Assign the file names to a string array, in
// case the user has selected multiple files.
//这里就是获取被拖入文件的路径
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
try
{
// Assign the first image to the picture variable.
this.picture = Image.FromFile(files[0]);
// Set the picture location equal to the drop point.
this.pictureLocation = this.PointToClient(new Point(e.X, e.Y) );
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
// Handle Bitmap data.
if(e.Data.GetDataPresent(DataFormats.Bitmap) )
{
try
{
// Create an Image and assign it to the picture variable.
this.picture = (Image)e.Data.GetData(DataFormats.Bitmap);
// Set the picture location equal to the drop point.
this.pictureLocation = this.PointToClient(new Point(e.X, e.Y) );
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
// Force the form to be redrawn with the image.
this.Invalidate();
}
private void Form1_DragEnter(object sender, DragEventArgs e)
{
// If the data is a file or a bitmap, display the copy cursor.
if (e.Data.GetDataPresent(DataFormats.Bitmap) ||
e.Data.GetDataPresent(DataFormats.FileDrop) )
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}
补充：.NET技术 , .NET Framework
