[英]Using generic base class for WPF window
Why is this: 为什么是这样:
public abstract class WindowControls<T> : Window
not possible. 不可能。 I can't seem to figure it out.
我似乎无法弄明白。
public partial class AnglesteelWindow : WindowControls<AngleSteel> {
private UCListView uc;
public AnglesteelWindow() {
InitializeComponent();
uc = new UCListView();
uc.SubmitClick += new EventHandler(ButtonPressed);
this.uc.grid.PreviewMouseLeftButtonUp +=
new System.Windows.Input.MouseButtonEventHandler(
this.MousePressed14<AngleSteel>);
stkTest.Children.Add(uc);
uc.amountLabel.Content = "Milimeter";
uc.grid.ItemsSource = DatabaseLogic.MaterialTable("Anglesteel").DefaultView;
base.Material(uc, "Anglesteel");
}
}
I know how generics work, but don't know why it is not possible to make my AnglesteelWindow derive from WindowControls. 我知道泛型如何工作,但不知道为什么不可能让我的AnglesteelWindow从WindowControls派生。 The error it gives me is the following:
它给我的错误如下:
Base class of 'Name of the solution' differs from declared in other parts.
“解决方案名称”的基类与其他部分中声明的不同。
When i look at the so called other part it is the following: 当我看到所谓的其他部分时,它是以下内容:
public partial class AnglesteelWindow :
WindowControls<AngleSteel> System.Windows.Markup.IComponentConnector {
This is made in the AnglesteelWindow.gics file. 这是在AnglesteelWindow.gics文件中进行的。 If i remove it from there it makes no difference at all.
如果我从那里删除它根本没有任何区别。
Adding on @MichaelMairegger answer, you can reach your goal by creating another non-generic class that inherits from the generic class like this: 添加@MichaelMairegger答案,您可以通过创建另一个继承自泛型类的非泛型类来达到目标,如下所示:
public abstract class WindowControlsOfAngleSteel : WindowControls<AngleSteel>
{
}
And make your window class inherit from it like this: 并使您的窗口类继承如下:
From XAML: 来自XAML:
<ns:WindowControlsOfAngleSteel >
</ns:WindowControlsOfAngleSteel >
Where ns
is the namespace where WindowControlsOfAngleSteel
exists. 其中
ns
是WindowControlsOfAngleSteel
存在的命名空间。
In code (optional): 在代码中(可选):
public partial class AnglesteelWindow : WindowControlsOfAngleSteel
{
}
You cannot change the inheritance tree. 您无法更改继承树。
AnglesteelWindow
is partial because it is also declared in AnglesteelWindow.xaml where the root element is Window
. AnglesteelWindow
是部分的,因为它也在AnglesteelWindow.xaml中声明,其中根元素是Window
。 If you want to inherit from another class you have to replace there the Window
root by your base class. 如果你想从另一个类继承,你必须用你的基类替换
Window
root。
public class MyDerivedBaseWindow : Window {}
<ns:MyDerivedBaseWindow >
<!-- WindowContent-->
</ns:MyDerivedBaseWindow >
But you cannot use a Generic class in XAML. 但是你不能在XAML中使用Generic类。 You have to change your logic that the base-window-class that you want to use as window-root is non-generic.
您必须更改逻辑,即要用作window-root的基本窗口类是非泛型的。
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