(12) WPF 对话框控件

一、OpenFileDialog

 

        OpenFileDialog openFileDialog;
        Nullable<bool> b;
        public MainWindow()
        {
            InitializeComponent();
        }

        private void btn_Click(object sender, RoutedEventArgs e)
        {
            openFileDialog = new OpenFileDialog();

            //默认名称
            openFileDialog.FileName = "file";
            //弹出框标题名称，默认 "打开"
            openFileDialog.Title = "读取文档";
            //过滤器
            openFileDialog.Filter = "图像文件(*.bmp, *.jpg)|*.bmp;*.jpg|word文档(*.doc)|*.doc|所有文件(*.*)|*.*";
            //默认打开路径
            openFileDialog.InitialDirectory = "d:";
            //注册点击打开事件
            //openFileDialog.FileOk += Open_Click;
            //点击打开返回true，取消返回false
            b = openFileDialog.ShowDialog();
            if (b == true)
            {
                string file = openFileDialog.FileName;
                MessageBox.Show("你选择的文件是：" + file.ToString());
            }
            MessageBox.Show(b.ToString());
        }

        //public void Open_Click(object sender, CancelEventArgs e)
        //{
        //    if (b == true)
        //    {
        //        string file = openFileDialog.FileName;
        //        MessageBox.Show("你选择的文件是：" + file.ToString());
        //    }
        //    else
        //    {
        //        MessageBox.Show(b.ToString());
        //    }
        //}

发现不需要用事件触发，ShowDialog会返回一个bool值

 

  

二、SaveFileDialog

 同上

 

三、PrintDialog

 暂略 https://www.cnblogs.com/buchizaodian/p/11652742.html