如何将文件拖放到应用程序中？ [英] How do I drag and drop files into an application?

问题描述

我已经在Borland的 Turbo C ++ 环境中看到了这一点，但我不确定如何解决它正在开发的C＃应用​​程序。有没有最好的做法或疑虑来寻找？

解决方案

一些示例代码：

  public partial class Form1：Form {
 public Form1（）{
 InitializeComponent（）; 
 this.AllowDrop = true; 
 this.DragEnter + = new DragEventHandler（Form1_DragEnter）; 
 this.DragDrop + = new DragEventHandler（Form1_DragDrop）; 
} 
 
 void Form1_DragEnter（object sender，DragEventArgs e）{
 if（e.Data.GetDataPresent（DataFormats.FileDrop））e.Effect = DragDropEffects.Copy; 
} 
 
 void Form1_DragDrop（object sender，DragEventArgs e）{
 string [] files =（string []）e.Data.GetData（DataFormats.FileDrop）; 
 foreach（文件中的字符串文件）Console.WriteLine（file）; 
} 
} 
  

I've seen this done in Borland's Turbo C++ environment, but I'm not sure how to go about it for a C# application I'm working on. Are there best practices or gotchas to look out for?

解决方案

Some sample code:

  public partial class Form1 : Form {
    public Form1() {
      InitializeComponent();
      this.AllowDrop = true;
      this.DragEnter += new DragEventHandler(Form1_DragEnter);
      this.DragDrop += new DragEventHandler(Form1_DragDrop);
    }

    void Form1_DragEnter(object sender, DragEventArgs e) {
      if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy;
    }

    void Form1_DragDrop(object sender, DragEventArgs e) {
      string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
      foreach (string file in files) Console.WriteLine(file);
    }
  }

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