CODEWITHSUNDEEP
wpfuser-controls
Gerard
Gerard

Reputation: 13397

Binding code-behind property of a wpf UserControl

I am trying to create a Wpf UserControl with a variable number of buttons.
In the code behind public string[] MenuItems { get; set; } contains the Text (Content) of the buttons, so every item in the array should correspond to one button.

I tried:

<UserControl x:Class="MyApp.Controls.MenuButtons"
             xmlns:m="clr-namespace:MyApp.Controls"
             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"
             DataContext="{Binding RelativeSource={RelativeSource Self}}">
    <DockPanel LastChildFill="False"
               Background="{StaticResource ControlBackground}"
               DockPanel.Dock="Top"
               Height="35"
               Margin="5,0,0,0">
        <ItemsControl ItemsSource="{Binding MenuItems}">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Button Content="{Binding}"
                            Style="{StaticResource MenuButton}" />
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
    </DockPanel>
</UserControl>

Using the control in a window like this:

<c:MenuButtons MenuItems="..."></c:MenuButtons>

Gives the error: The member "MenuItems" is not recognized or is not accessible.
MenuItems is sometimes recognized in xaml intellisense, sometimes not. The window has iself as datacontext: 

DataContext="{Binding RelativeSource={RelativeSource Self}}"

Upvotes: 0

Views: 3458

Answers (1)

Nitin Purohit
Nitin Purohit

Reputation: 18580

Your MenuItems property should be a DependancyProperty in order to use it as Binding Target.

The type should be string[] not string. 

static readonly DependencyProperty MenuItemsProperty = DependencyProperty.Register("MenuItems", typeof(string[]), typeof(MenuButtons), new PropertyMetadata(null));

Upvotes: 2

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