拖拽到桌面/浏览器

Following my scenario.

后我的场景。

I got an Application which loads a Filestructure (Folders, Files) from a Database into a WPF ListView. Now I'd like to grab a file from this ListView, drag it over my Desktop (or some open explorer window) and drop it there. Basic Drag and Drop, nothing fancy. This sounds like a "standard" function for a windows application - but google won't help.

我得到了一个应用程序，该应用程序将数据库中的文件结构(文件夹、文件)加载到WPF列表视图中。现在，我想从这个列表视图中抓取一个文件，将它拖到我的桌面(或某个打开的资源管理器窗口)并将它放在那里。基本的拖放，没什么特别的。这听起来像是windows应用程序的“标准”函数——但是谷歌没有帮助。

So how can I achieve this? Interops?

那么，我如何才能做到这一点呢?互操作吗?

Thanks

谢谢

Edit: Thanks for the solution, I still had to do some googling. Here's my complete solution.

编辑:谢谢你的解决方案，我还得上网搜索一下。这是我的完整的解决方案。

1 个解决方案

#1

DragDrop.DoDragDrop can do this as long as you pass it an appropriate DataObject.

DragDrop。只要传递一个合适的DataObject, DoDragDrop就可以这样做。

First copy the files somewhere. You can use System.IO.Path.GetTempPath() if you don't have anywhere better.

首先把文件复制到某个地方。如果你没有更好的地方，你可以使用system . io.p。gettemppath()。

Next create a string array containing the full paths to the files and do the following:

接下来创建一个包含文件完整路径的字符串数组，并执行以下操作:

string[] paths = ...;
DragDrop.DoDragDrop(this, new DataObject(DataFormats.FileDrop, paths),
                    DragDropEffects.Copy);

It is actually possible to do this without pre-copying the files but that gets into some complicated IDataObject interactions, so unless your files are potentially very large and aren't already in the filesystem I would try this method first.

实际上，不需要预先复制文件就可以做到这一点，但是这会涉及到一些复杂的IDataObject交互，所以除非您的文件可能非常大，而且还没有在文件系统中，否则我将首先尝试这个方法。

#1