WPF中的Window.ShowDialog()打开的窗口中的按钮Close()事件
我经常会使用ShowDialog().Value；这个遇到实现下面的功能时，ShowDialog()出的窗体Close()时，并不能返回值。
错误代码如下：
0 AddDataWay addDataWay = new AddDataWay(); 1 if (addDataWay.ShowDialog().Value) // 2 { 3 int selectedWay = addDataWay.SelectWay(); 4 if (selectedWay == 1) 5 { 6 } 7 else 8 { 9 } 10 }
跟改为：
0 AddDataWay addDataWay = new AddDataWay();
1 if (addDataWay.ShowDialog().HasValue) // 2 { 3 int selectedWay = addDataWay.SelectWay(); 4 if (selectedWay == 1) 5 { 6 } 7 else 8 { 9 } 10 }
AddDataWay窗口代码：
1 public partial class AddDataWay : DXWindow 2 { 3 #region 成员变量 4 public static int selectedWay=1; // 选择方式默认云端 5 #endregion 6 7 public AddDataWay() 8 { 9 this.InitializeComponent(); 10 } 11 12 private void DXWindow_Loaded(object sender, RoutedEventArgs e) 13 { 14 } 15 16 /// <summary> 17 /// 云端-0 18 /// </summary> 19 /// <param name="sender"></param> 20 /// <param name="e"></param> 21 private void ImportFromTheCloud_Click(object sender, RoutedEventArgs e) 22 { 23 selectedWay = 0; 24 this.Close(); 25 } 26 27 /// <summary> 28 /// 本地-1 29 /// </summary> 30 /// <param name="sender"></param> 31 /// <param name="e"></param> 32 private void ImportFromTheLocal_Click(object sender, RoutedEventArgs e) 33 { 34 selectedWay = 1; 35 this.Close(); 36 } 37 }