Am not able to successfully bind WPF control to C# variable. The resource could not be resolved

Question

The statement:

ItemsSource="{Binding Source={StaticResource TTColumn}, Path=Names}"

gives the error:

The resource TTColumn could not be resolved.

The entire .xaml code is:

<controls:MetroWindow x:Class="XLTT.Views.RemoveColumn" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:controls="http://metro.mahapps.com/winfx/xaml/controls" GlowBrush="{DynamicResource AccentColorBrush}" ShowTitleBar="False" WindowStartupLocation="CenterOwner" ResizeMode="NoResize" WindowStyle="ToolWindow" Height="320" Width="350" Title="Remove Table Column"> <controls:MetroWindow.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" /> <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.AnimatedSingleRowTabControl.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </controls:MetroWindow.Resources> <Grid Margin="20 10"> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <ListBox Margin="5" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" ItemsSource="{Binding Source={StaticResource TTColumn}, Path=Names}" SelectedItem="{Binding SelectedColumn}" Grid.Row="1" BorderBrush="#FFF1F1F1" Background="#FFFFF9F9" Grid.ColumnSpan="3"/> <TextBlock HorizontalAlignment="Stretch" Margin="5 0 5 0" TextWrapping="Wrap" Text="Select Column:" VerticalAlignment="Top" Grid.ColumnSpan="3" FontWeight="Bold" FontFamily="Segoe UI Light" FontSize="24"/> <Button Name="btnOk" Height="30" Content="Remove" HorizontalAlignment="Stretch" Margin="5" VerticalAlignment="Bottom" Width="68" Command="{Binding RemoveColumnCommand}" Grid.Row="2" Grid.Column="1"/> <Button Name="btnCancel" Height="30" Content="Close" HorizontalAlignment="Stretch" Margin="5" VerticalAlignment="Bottom" Width="68" RenderTransformOrigin="1.867,0.75" Click="btnCancel_Click" Grid.Row="2" Grid.Column="2"/> </Grid> </controls:MetroWindow>

Here is the definition of the Names variable that I am trying to bind to WPF.

namespace XLTT.Core.Models { public class TTColumn { private static string[] names = {"one", "two", "three"}; // the name field public static string[] Names // the Name property { get { return names; } set { names = value; } } } }

Robert Harvey · Accepted Answer · 2018-03-26 16:12:42Z

If you want to bind a control to a static property you shoud use the x:Static markup extension instead of the StaticResource one (since TTColumn is not a static resource).

So you have to add a reference to the namespace in your MetroWindow xaml:

<controls:MetroWindow x:Class="XLTT.Views.RemoveColumn" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" ... xmlns:models="clr-namespace:XLTT.Core.Models"

then replace your binding with:

ItemsSource="{Binding Source={x:Static models:TTColumn.Names}}"

I hope this can help you.

Gusdor · Accepted Answer · 2015-07-13 08:46:06Z

You need to define an XAML namespace for XLTT.Core.Models and reference it in the StaticResource extension. For this, we need to know the assembly name that the namespace is declared in - ill refer to this as SampleNamespace

First add the namespace to the MetroWindow element.

<controls:MetroWindow x:Class="XLTT.Views.RemoveColumn" xmlns:models="clr-namespace:XLTT.Core.Models;assembly=SampleNamespace"

Now reference the namespace in the binding.

ItemsSource="{Binding Source={StaticResource models:TTColumn}, Path=Names}"

Collectives™ on Stack Overflow

Am not able to successfully bind WPF control to C# variable. The resource could not be resolved

2 Answers 2

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Related