C#实现文件夹选择框

文章來源： http://blog.csdn.net/timewolf/article/details/815931

     大家都用过C#里的文件打开/保存对话框吧?方便明快且易上手.但是可惜的是,C#居然没提供同样的文件夹选择框,很多人通过P/I invoke使用了系统的一些函数来实现对话框,那是相当地不方便啊~~其实,C#的FolderNameEditor类在某种程度上就实现了文件夹选择框的功能,只不过没有完全包装出来.呵呵,今天就给读者放出一个使用C#自己的类实现的对话框,使用起来就跟OpenFileDialog一样简单易用.

       给文件夹选择框类起名叫OpenFolderDialog,类设计如下:

public class OpenFolderDialog : FolderNameEditor, IDisposable
 
{
   FolderNameEditor.FolderBrowser fDialog = new FolderNameEditor.FolderBrowser();
  
    public OpenFolderDialog()
   {
    }

    public DialogResult ShowDialog()
    {
        return ShowDialog("Select a folder:");
    }
 
    public DialogResult ShowDialog(string description)
    {
        fDialog.Description = description;
        return fDialog.ShowDialog();
    }
 
    public string Path
    {
        get
        {
            return fDialog.DirectoryPath;
        }
    }
 
    public void Dispose()
    {
        fDialog.Dispose();
    }
}

使用实例:

private void selectFolderButton_Click(object sender, EventArgs e)
 
{
 
    using (OpenFolderDialog openFolderDlg = new OpenFolderDialog())
 
    {
 
        if (openFolderDlg.ShowDialog() == DialogResult.OK)
 
        {
 
            this.outFolderTextBox.Text = openFolderDlg.Path;
 
        }
 
    }
 
}

下面是对照的OpenFolderDialog使用实例,对照一下,是不是很相似?

private void selectFileButton_Click(object sender, EventArgs e)
 
{
 
    using (OpenFileDialog openDlg = new OpenFileDialog())
 
    {
 
        openDlg.Filter = @"All text Files(*.txt)|*.txt";
 
        openDlg.Multiselect = false;
 
        openDlg.RestoreDirectory = true;
 
        openDlg.FilterIndex = 1;
 
 
 
        if (openDlg.ShowDialog() == DialogResult.OK)
 
        {
 
            this.filePathTextBox.Text = openDlg.FileName;
 
        }
 
    }
 
}