发送数据到非父窗口
问题描述:
我有2个部分类,窗口A(frmSchedule)和窗口B(frmAddLesson)。窗口A中有一个数据绑定的ListView控件。窗口A打开窗口B,该窗口旨在创建一个新的课程对象,并且我想将该课程数据放回到窗口A.我可以通过哪些方式实现此目标?有没有简单的方法在C#中使用应用程序范围变量?发送数据到非父窗口
我试过从单个基类派生两个部分类,然后使用该类将课程数据导回第一个窗口,但我无法弄清楚。 :(
欲了解更多信息,我已经奠定了这里的程序:
我有一个主窗口(fmrSchedule)绑定到一个ObservableCollection ListView控件: (为简单起见,我会假装课程对象仅具有1个数据的该事项)
<ListView Name="lstLessons" Margin="204,15,192,125" ItemsSource="{Binding Path=LessonList}">
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding Time}">Time</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
在代码:
public partial class frmSchedule : Window
{
public frmSchedule()
{
InitializeComponent();
//ListView sample data
aLesson = new Lesson();
aLesson.Time = 9;
m_myLessons.Add(aLesson);
lstLessons.ItemsSource = LessonList;
}
Lesson aLesson;
private ObservableCollection<Lesson> m_myLessons = new ObservableCollection<Lesson>();
public ObservableCollection<Lesson> LessonList { get { return m_myLessons; } }
//Add Lesson
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
//New frmAddLesson window
frmAddLesson addLesson = new frmAddLesson();
addLesson.Show();
}
的btnAdd按钮控制打开第二形式(frmAddLesson),其用于创建一个新的课程对象被添加到该课程列表在主窗口:(在此情况下,时间是基于一个组合框选择集)
public partial class frmAddLesson : Window
{
public frmAddLesson(System.DateTime? DateTime)
{
InitializeComponent();
dateTime = DateTime;
radPrivate.IsChecked = true;
}
//DateTime from calendar selection
private DateTime? dateTime;
//Lesson object
private Lesson theLesson;
//ADD LESSON
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
//Create new Lesson object
theLesson = new Lesson();
//Set Lesson property
theLesson.Time = (int)cmbTime.SelectedValue; //Time
this.Close();
}
}
的课类:
public class Lesson
{
public Lesson()
{
//Stuff for later
}
private int m_Time;
public int Time { get { return m_Time; } set { m_Time = value; } }
}
答
public partial class frmSchedule : Window
{
...
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
//New frmAddLesson window
frmAddLesson addLesson = new frmAddLesson(this);
addLesson.Show();
}
public void AddLesson(Lesson lesson)
{
...
}
}
public partial class frmAddLesson : Window
{
public frmAddLesson(frmSchedule schedule)
{
InitializeComponent();
this.schedule = schedule;
...
}
frmSchedule schedule;
//ADD LESSON
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
//Create new Lesson object
var theLesson = new Lesson();
//Set Lesson property
theLesson.Time = (int)cmbTime.SelectedValue; //Time
schedule.AddLesson(theLesson);
this.Close();
}
}
我不知道我怎么不知道,你可以做到这一点...非常感谢! – 2012-03-07 04:33:48