CODEWITHSUNDEEP
wpfxaml
PeteH
PeteH

Reputation: 2454

WPF - A dialog having a base class other than Window, where that base class implements generics

I have kind-of a similar question to this post.

In a nutshell, if you create a dialog in WPF, you get from Visual Studio:

<Window x:Class="FrontEnd.View.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:DiabetesFrontEnd.View"
        mc:Ignorable="d"
        Title="Window1" Height="300" Width="300">
        ...

created as part of the xaml, and

    public partial class Window1 : Window
    {
    ...

as the code behind. The questionner is asking about what happens to the xaml if you have a scenario with some base class scenario inserted, i.e.

   public partial class Window1 : BaseWindow
{
.....

where

public class BaseWindow : Window
{
...

My question is an extension to this. What if you have the above scenario, but with

public class BaseWindow<T> : Window
{
...

and I'd obviously also have

public partial class Window1 : BaseWindow<SomeConcreteClass>
{
...

Is it possible to represent this hierarchy in xaml? If so, what does the xaml look like? I'm specifically thinking of using generics here, as opposed to objects. I've just hit a scenario where generics looks useful, but I'm not sure how to achieve it in WPF where xaml is involved. Many thanks.

Upvotes: 0

Views: 127

Answers (1)

mm8
mm8

Reputation: 169370

Yes, you should use the x:TypeArguments directive in the XAML markup.

namespace WpfApp1
{
    public class BaseWindow<T> : Window { }

    public class SomeConcreteClass { }
}

Window1.xaml.cs:

public partial class Window1 : BaseWindow<SomeConcreteClass>
{
    public Window1()
    {
        InitializeComponent();
    }
}

Window1.xaml:

<local:BaseWindow x:Class="WpfApp1.Window1"
        x:TypeArguments="local:SomeConcreteClass"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp1"
        mc:Ignorable="d"
        Title="Window1" Height="300" Width="300">
    <Grid>

    </Grid>
</local:BaseWindow>

Upvotes: 1

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