private static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue == null)
{
return;
}
MyFrame c = (MyFrame)d;
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(e.NewValue.ToString(), UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
c.Children.Clear();
c.Children.Add((UIElement)ui.LoadedContent);
}), 1);
}
public static void OnIsOpenChanged(DependencyObject dp, DependencyPropertyChangedEventArgs args)
{
object newVal = args.NewValue;
//IsOpen为True,并且有子窗口名称，创建子窗口并显示
if (newVal != null && (bool)newVal)
{
ChildWindowObj cwo = (ChildWindowObj)dp;
if (cwo.CWName == null)
{
throw new Exception("子窗口名称为空");
}
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(cwo.CWName + ".xaml", UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
CustomChildWindow showWin = (CustomChildWindow)ui.LoadedContent;
if (cwo.ParamObj != null)
{
showWin.ParamValue = cwo.ParamObj;
}
showWin.Show();
showWin.Parent = dp;
//注册关闭事件获取返回值
showWin.Closed += (o, e) =>
{
CustomChildWindow cw = (CustomChildWindow)o;
if (cw.ReturnValue != null)
{
cw.ReturnValue.ToString();
cwo.Result = cw.ReturnValue;
cwo.OnCompleted();
}
cwo.OnCompleted(new AsyncCompletedEventArgs(null, false, null));
};
}), 1);
cwo.IsOpen = false;
}
}
//自定义界面打印
private void CustomPagePrint()
{
CustomChildWindow tipPage = null;
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(messWindowName + ".xaml", UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
tipPage = (CustomChildWindow)ui.LoadedContent;
if (this.ParamObj != null)
{
tipPage.ParamValue = this.ParamObj;
//注册关闭事件获取返回值
tipPage.Closed += (o, e) =>
{
CustomChildWindow cw = (CustomChildWindow)o;
if (cw.ReturnValue != null && (bool)cw.ReturnValue)
{
Print();
}
else
{
State = State.Cancle;
AsyncCompletedEventArgs args1 = new AsyncCompletedEventArgs(null, true, State.Cancle);
OnCompleted(args1);
}
};
tipPage.Show();
}
}), 1);
}
private static void OnPageNameChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Panel c = (Panel)d;
//获取页面缓存
List<NameAndFrame> pages = GetPanelPages(c);
//旧页面变为不可见
if (e.OldValue != null)
{
NameAndFrame oldNaf = GetChildren((string)e.OldValue, pages);
if (oldNaf != null)
{
oldNaf.frame.Visibility = Visibility.Collapsed;
}
}
if (e.NewValue == null)
{
return;
}
string newName = (string)e.NewValue;
//如果不包含页面，说明页面没有打开，打开页面
NameAndFrame newui = GetChildren(newName, pages);
if (newui == null)
{
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(e.NewValue + ".xaml", UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
FrameworkElement page = (FrameworkElement)ui.LoadedContent;
c.Children.Add(page);
//添加到页面缓存中
NameAndFrame newpage = new NameAndFrame(newName, page);
pages.Add(newpage);
}), 1);
}
else
{
//修改页面为可见
newui.frame.Visibility = Visibility.Visible;
//将新的放到栈顶
pages.Remove(newui);
pages.Add(newui);
}
}
private static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ContentControl c = (ContentControl)d;
if (e.NewValue == null)
{
return;
}
// 如果是加载网页组件，产生网页组件，把网页名称给网页组件
if (e.NewValue.Equals("html.xaml"))
{
Html html = new Html();
c.Content = html;
// 把网页名称给网页组件
html.Source = GetHtmlSource((Frame)c);
return;
}
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(e.NewValue + ".xaml", UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
c.Content = ui.LoadedContent;
}), 1);
}
