void _gridClickManager_DoubleClick(object sender, MouseButtonEventArgs e)
{
DataGridRow dgrow = sender as DataGridRow;
PageResourceContentLoader load = new PageResourceContentLoader();
load.BeginLoad(new Uri(page + ".xaml", UriKind.Relative), null, new AsyncCallback(r =>
{
LoadResult ui = load.EndLoad(r);
CustomChildWindow showWin = (CustomChildWindow)ui.LoadedContent;
showWin.ParamValue = dgrow.DataContext;
showWin.Show();
}), 1);
}
public ModalWindow()
{
childWindow = new CustomChildWindow()
{
ShowMaxButton = false,
ShowMinButton = false,
Modal = true,
Resize = false,
MinVertical = 30,
OverlayOpacity = 0.65
};
childWindow.Style = Application.Current.Resources[ChildWindowStyleKey] as Style;
RegisterEvent();
childWindow.Tag = this;
}
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;
}
}
/// <summary>
/// 扩充后的根据名称找对象的方法，如果名字=this, 返回自己；名字=data, 返回数据上下文。
/// 其它，先在界面上找元素，没找到，在自己的资源里找，没找到，一直往上找父资源的，都没有找到，
/// 在应用程序资源中找。
/// </summary>
/// <param name="ui"></param>
public static object FindResource(this FrameworkElement ui, string name)
{
//如果是this，返回所附加到的对象
if (name == "this")
{
return(ui);
}
//是data，返回数据上下文
if (name == "data")
{
return(ui.DataContext);
}
//在界面上找元素
object fui = ui.FindName(name);
if (fui != null)
{
return(fui);
}
//找资源
object result = FindResourceInSelf(ui, name);
if (result != null)
{
return(result);
}
ui = ui.GetParent();
while (ui != null)
{
//在界面上找元素
fui = ui.FindName(name);
if (fui != null)
{
return(fui);
}
result = FindResourceInSelf(ui, name);
if (result != null)
{
return(result);
}
if (ui is CustomChildWindow)
{
CustomChildWindow ccw = (CustomChildWindow)ui;
result = ccw.Parent.FindResource(name);
if (result != null)
{
return(result);
}
}
ui = ui.GetParent();
}
//在界面上没找到，在应用程序中找
if (Application.Current.Resources.Contains(name))
{
return(Application.Current.Resources[name]);
}
//在应用程序中没找到，在应用程序的主页面中找
result = GetResourceFromFrame(name);
if (result != null)
{
return(result);
}
//if (ui is Table)
//{
// return ((Table)ui).MainData;
//}
return(null);
}
