I have created MainWindow as a 'MasterPage' and inside this window I want to switch between other views which are UserControls. Inside MainViewModel which is DataContext of MainWindow I have created ObservableCollection as my 'pages'. Here is my XAML of view changes:
<UserControl Grid.Row="1" Content="{Binding CurrentView.Content}"/>
View changing is working as expected but CurrentView still has MainWindow`s DataContext even when I set DataContext inside specific UserControl as example:
<UserControl.DataContext>
<viewModels:DesignerViewModel/>
</UserControl.DataContext>
You can use Prism framework for this issue. He can navigate your content control between your user controls easily.
I used a TabControl to switch between UserControls see below XAML:
<TabControl Grid.Row="1" Margin="5" Name="tabControl" SelectionChanged="tabControl_SelectionChanged">
<TabItem IsSelected="True" FontSize="20">
<TabItem.Header>
<StackPanel Orientation="Horizontal">
<Image Source="/Images/basket.png" Width="20" Height="20" Margin="0,0,5,0"/>
<TextBlock Text="Orders" VerticalAlignment="Center" />
</StackPanel>
</TabItem.Header>
<UserControl Name="ucOrder" />
</TabItem>
<TabItem IsSelected="True" FontSize="20">
<TabItem.Header>
<StackPanel Orientation="Horizontal">
<Image Source="/Images/report.png" Width="20" Height="20" Margin="0,0,5,0"/>
<TextBlock Text="Order Reports" VerticalAlignment="Center" />
</StackPanel>
</TabItem.Header>
<UserControl Name="ucReports" />
</TabItem>
</TabControl>
As you can see i have some text and images included in the tabitem aswell, i just want you to notice the Usercontrol in each of them.
You need to create a UserControl, like this:
<UserControl x:Class="Order.ucOrderOversigt"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="600" Loaded="UserControl_Loaded" Unloaded="UserControl_Unloaded">
<UserControl.Resources>
<!-- Resources -->
</UserControl.Resources>
<Grid >
<!-- GUI-->
</Grid>
</UserControl>
And the following .cs code:
namespace WPFBestilling.Order
{
public partial class ucOrderOversigt: UserControl
{
public ucOrderOversigt()
{
//constructor
}
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
//Loaded
}
private void UserControl_Unloaded(object sender, RoutedEventArgs e)
{
//Unloaded
}
}
}
Then lastly to switch between the tabs in the main window, you need some .cs code to do so. Like this:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
ucOrder.Content = new ucOrderOversigt();
ucReports.Content = new ucReportOversigt();
}
private void tabControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//if something needs to happend when you shift between tabs
}
private void Window_Closing(object sender, CancelEventArgs e)
{
//Window closing
}
}
I hope it helps, if you have any questions just shoot :)
You should set the CurrentView
property to an instance of a view model and use a ContentControl
to display and map a view with a view model, eg:
<ContentControl Content="{Binding Binding CurrentView}">
<ContentControl.Resources>
<DataTemplate DataType="local:DesignerViewModel">
<local:DesignerUserControl />
</DataTemplate>
<DataTemplate DataType="local:TypeBViewModel">
<local:TypeBUserControl />
</DataTemplate>
</ContentControl.Resources>
</ContentControl>
The type of the CurrentView
should either be a common base type for all the view models or object
.
You then define a DataTemplate
per view model type like above and remove this from the UserControls
:
<UserControl.DataContext>
<viewModels:DesignerViewModel/>
</UserControl.DataContext>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.