Binding to Loaded XAML File

Question

I have a project that saves a canvas containing numerous UI Controls.  However when I load the canvas again all of the controls are present with the correct values. But all of the Bindings to the control properties are no longer updated when the source
changes. Why is this ?. Whats missing. I tried Resetting the dataContext and many other things that People have suggest but with no success. I don't have enough experience with WPF to fully understand yet what has gone wrong.
Open and save code taken from (http://www.codeproject.com/Articles/24681/WPF-Diagram-Designer-Part)
the Controls are contained in a separate Control library
Developer of bits

Answer 1

Hi thanks for you efforts. However
giovhan  has pointed me the the right direction . However here is the code you requested.  According to
giovhan  I have the rebind all of the Xaml bindings back to the source properties. All of them !
Here is the Control XAML
<base:BaseUserControl x:Class="WPFControlLibrary.Controls.HorizontalGauge"
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"
xmlns:base="clr-namespace:WPFControlLibrary.Base"
mc:Ignorable="d"
d:DesignHeight="100" d:DesignWidth="300"
>
<Grid>
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition Height="*"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<Label Tag="lblDescription" Content="{Binding Description }" HorizontalAlignment="Center" Grid.Row="2" VerticalAlignment="Stretch" FontWeight="Bold" FontSize="14"/>
<Grid Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Label Tag="lblleftboundary" Grid.Column="0" Content="{Binding MinValueString}" HorizontalAlignment="Left" FontWeight="Bold"
/>
<Label Tag="lblMiddleBoundary" Grid.Column="1" Content="50" HorizontalAlignment="Center" FontWeight="Bold"/>
<Label Tag="lblUpperBoundary" Grid.Column="2" Content="{Binding MaxValueString}" HorizontalAlignment="Right" FontWeight="Bold"/>
</Grid>
<ProgressBar HorizontalAlignment="Stretch" Grid.Row="1" VerticalAlignment="Stretch" BorderThickness="3" Cursor="Arrow" Foreground="{Binding ProgressBarForground}" Value="{Binding ProgressBarValue}" Background="Black" Maximum="{Binding maxValue}" Minimum="{Binding minValue}" >
<ProgressBar.BorderBrush>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFB2B2B2" Offset="0"/>
<GradientStop Color="#FF5F7A9B" Offset="1"/>
</LinearGradientBrush>
</ProgressBar.BorderBrush>
</ProgressBar>
</Grid>
</Grid>
</base:BaseUserControl>
And here is the code behind (Reduced)
namespace WPFControlLibrary.Controls
using System.Windows.Media;
using Dan.monitor.Common;
using WPFControlLibrary.Base;
[MonitorControl(true)]
public partial class HorizontalGauge : BaseUserControl, IMonitorControl
private float _progressBarValue;
private SolidColorBrush progressBarForground;
public HorizontalGauge()
this.InitializeComponent();
this.PrepareControl();
private void PrepareControl()
this.DataContext = this;
this.NewValueReceived += this.HorizontalGauge_NewValueReceived;
private void HorizontalGauge_NewValueReceived(NewMetricEventValue e)
if (e.Value != null)
this.ProgressBarValue = (float)e.Value.Raw;
public float ProgressBarValue
get
return this._progressBarValue;
set
this._progressBarValue = value;
this.CheckColorStatus(value);
this.CallPropertyChange("ProgressBarValue");
public SolidColorBrush ProgressBarForground
get
return this.progressBarForground;
set
if (this.progressBarForground != value)
this.progressBarForground = value;
this.CallPropertyChange("ProgressBarForground");
private void CheckColorStatus(float value)
if (value <= this.Ok)
this.ProgressBarForground = new SolidColorBrush(this.OkColor);
if (value > this.Warn)
this.ProgressBarForground = new SolidColorBrush(this.WarnColor);
if (value >= this.Alert)
this.ProgressBarForground = new SolidColorBrush(this.AlertColor);
And here is the base Control
Developer of bits