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How to Build a Custom Formatted Label with WPF

, 1 Nov 2007
This article explains how to provide a custom gauge formatter for WPF TextBlocks, Label or any other controls
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;

namespace GaugeFormatter
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>

    public partial class Window1 : System.Windows.Window

        public Window1()

        void ReDo(object s, RoutedEventArgs e)
            ObjectDataProvider odp = Resources["data"] as ObjectDataProvider;

    class DataConverter:IValueConverter
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
            int val = (int)value;
            int max = int.Parse(parameter.ToString());
            return new Point(val == 0 ? 0 : ((double)val / (double)max), 0.5);

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
            throw new Exception("The method or operation is not implemented.");

    class DataSource : ObservableCollection<int>
        Random rnd = new Random();
        public DataSource()

        public DataSource(int max)

        public void Init()

        public void Init(int max)
            for (int i = 0; i < 10; i++)

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About the Author

Tamir Khason
Architect Better Place
Israel Israel
Hello! My name is Tamir Khason, and I am software architect, project manager, system analyst and [of course] programmer. In addition to writing big amount of documentation, I also write code, a lot of code. I used to work as a freelance architect, project manager, trainer, and consultant here, in Israel, but recently join the company with extremely persuasive idea - to make a world better place. I have very pretty wife and 3 charming kids, but unfortunately almost no time for them.
To be updated within articles, I publishing, visit my blog or subscribe RSS feed. Also you can follow me on Twitter to be up to date about my everyday life.

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Web04 | 2.8.140916.1 | Last Updated 1 Nov 2007
Article Copyright 2007 by Tamir Khason
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