Hello, I have problem with databinding. I created small application using structure that I need to demonstrate problem.
I need to change content of label when changing content of property "Promena". I change content of property "Promena" from "Origin text" to "Changed text" using thread but content of label is still the same - databinding isnīt working according to my vision.
Does somebody know, please, why content of label doesnīt change when I change content of property "Promena"?
test.xaml
- <Window x:Class="DispatcherTimer_CodeProject.test"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:src="clr-namespace:DispatcherTimer_CodeProject"
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x:Name="myDispatcherTimer"
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Title="DispatcherTimer"
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WindowStyle="None"
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WindowState="Maximized"
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ResizeMode="NoResize">
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<Window.Resources>
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<src:test x:Key="prevod"/>
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<DataTemplate x:Key="grid1">
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<Grid x:Name="myGrid" Background="Blue" Cursor="None">
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<Grid.RowDefinitions>
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<RowDefinition Height="*"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<Grid.ColumnDefinitions>
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<ColumnDefinition/>
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</Grid.ColumnDefinitions>
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<Label Grid.Row="0"
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Grid.Column="0"
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Name="DatumCas2"
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Content="{Binding Source={StaticResource prevod}, Path=Promena, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
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VerticalContentAlignment="Center"
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HorizontalContentAlignment="Center">
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</Label>
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</Grid>
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</DataTemplate>
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<DataTemplate x:Key="grid2">
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<Grid x:Name="myGrid"
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Background="Black"
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Cursor="None">
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<Grid.RowDefinitions>
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<RowDefinition Height="*"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<Grid.ColumnDefinitions>
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<ColumnDefinition/>
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</Grid.ColumnDefinitions>
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<Label Grid.Row="0"
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Grid.Column="0"
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Foreground="Red"
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FontSize="50"
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Content="CurrentDateAndTime"
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VerticalContentAlignment="Center"
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HorizontalContentAlignment="Center">
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</Label>
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<Label x:Name="DatumCas"
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Grid.Row="1"
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Grid.Column="0"
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Foreground="White"
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FontSize="30"
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VerticalContentAlignment="Top"
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HorizontalContentAlignment="Center">
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</Label>
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</Grid>
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</DataTemplate>
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</Window.Resources>
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</Window>
test.xaml.cs
- using System;
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using System.Windows;
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using System.Windows.Controls;
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using Microsoft.Win32;
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using System.Windows.Input;
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using System.Threading;
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using System.ComponentModel;
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using System.Windows.Threading;
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namespace DispatcherTimer_CodeProject
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{
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public partial class test : Window, INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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private void NotifyPropertyChanged(string info)
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{
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if (PropertyChanged != null)
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PropertyChanged(this, new PropertyChangedEventArgs(info));
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}
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private string promena;
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public string Promena
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{
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get { return promena; }
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set { promena = value; NotifyPropertyChanged("Promena"); }
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}
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public test()
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{
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InitializeComponent();
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Promena = "Origin text";
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this.MouseDoubleClick += new System.Windows.Input.MouseButtonEventHandler(test_MouseDoubleClick);
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this.ContentTemplate = FindResource("grid1") as DataTemplate;
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}
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void test_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
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{
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myDispatcherTimer.Close();
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}
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private void UserControl_Loaded(object sender, RoutedEventArgs e)
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{
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System.Threading.Thread t = new Thread(new ThreadStart(Run));
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t.SetApartmentState(ApartmentState.STA);
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t.Start();
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}
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void Run()
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{
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Thread.Sleep(2000);
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Promena = "Changed text";
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}
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}
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}
