C#实现文件夹选择框

       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;

        }

    }

}