[事件] (WPF) 选择文件和文件夹对话框

选择文件夹对话框：WPF中似乎没有打开文件夹对话框，不过可以通过winform的方法打开，调研之前需要引用System.Windows.Forms;

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WordsSearch
{
    //使用方法
    //定义委托
    //public delegate void OpenFolderDialogEventHandler(object sender, OpenFolderDialogEventArgs e);
    ////用event 关键字声明事件对象
    //public event OpenFolderDialogEventHandler OpenFolderDialogEvent;
    ////事件触发方法
    //private void OnOpenFileDialogEvent(object sender, System.EventArgs e)
    //{
    //    OpenFolderDialogEventArgs ea = new OpenFolderDialogEventArgs(this.textblock_filename);
    //    if (OpenFolderDialogEvent != null)
    //        OpenFolderDialogEvent(this, ea);
    //}

    /// <summary>
    /// 选择文件夹事件
    /// </summary>
    public class OpenFolderDialogEventArgs : EventArgs
    {
        //文件夹路径
        private string FolderPath;

        /// <summary>
        /// 事件处理过程
        /// </summary>
        /// <param name="tb">显示路径地址的文本框</param>
        public OpenFolderDialogEventArgs(System.Windows.Controls.TextBox tb)
        {
            //new选择对话对象
            FolderBrowserDialog m_Dialog = new FolderBrowserDialog();
            DialogResult result = m_Dialog.ShowDialog();
            if (result == System.Windows.Forms.DialogResult.Cancel)
            {
                return;
            }
            //取出当前选择路径
            FolderPath = m_Dialog.SelectedPath.Trim();
            //将值赋予相应的文本框
            tb.Text = FolderPath;
        }

        //事件属性
        public string folderPath
        {
            get { return FolderPath; }
        }
    }
}