WPF

<telerik:GridViewDataColumn Header="From"
                            IsReadOnly="True"
                            DataMemberBinding="{Binding StartDT, StringFormat='{}{0:yyyy/MM/dd h:mm}'}"
                            IsVisible="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl},Mode=FindAncestor},Path=DataContext.ShowTimes}"
                            Width="150"/>

Silverlight/C#  project, I added an image object  with a default image, the following code was created
<Image Height="403" HorizontalAlignment="Left" Margin="1212,86,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="360" Source="/reposMTX;component/Images/09.JPG" />

How can I change the image when a button is clicked?
I tried this

image1.Source = new BitmapImage(new Uri("http://tpsa11/images/shi.bmp", UriKind.RelativeOrAbsolute));

but does not seem to work

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid Name="grid" >
        <Button Background="Yellow" Width="100" Height="100" Name="obj" />
    </Grid>
</Window>

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        System.Windows.Forms.PropertyGrid grid = new System.Windows.Forms.PropertyGrid();
        grid.SelectedObject = this; // Display the entire MainWindow's properties in the PropertyGrid
        grid.Width = 200;
        grid.Height = 100;

        System.Windows.Forms.Integration.WindowsFormsHost host = new System.Windows.Forms.Integration.WindowsFormsHost();
        host.Child = grid;

        StackPanel panel = new StackPanel();
        panel.Children.Add(host);

        obj.ToolTip = panel;
    }
}

<system.serviceModel>

    <bindings>
      <customBinding>
          <binding name="MyhttpsBinding">
          <binaryMessageEncoding/>
          <httpsTransport/> 
          </binding>
          <binding name="MyhttpBinding">
              <binaryMessageEncoding/>
              <httpTransport/>
          </binding>
      </customBinding>
    </bindings>

    <services>
      <service name="MyData" behaviorConfiguration="MyData">
        <endpoint address="" binding="customBinding" bindingConfiguration="MyData.customBinding.https" contract="MyData"/>
        <endpoint address="" binding="customBinding" bindingConfiguration="MyData.customBinding.http" contract="MyData"/>
        <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"/>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
      </service>
    </services>

    <behaviors>
      <serviceBehaviors>
        <behavior name="MyData" >
          <serviceMetadata httpsGetEnabled="true" httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
          <dataContractSerializer maxItemsInObjectGraph="2147483646"/>
        </behavior>
        <behavior name="">
          <serviceMetadata httpsGetEnabled="true" httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
  </behaviors>

  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
  </system.serviceModel>

<configuration>
<system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="DataS" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
                <security mode="None" />
            </binding>
            <binding name="DataS1" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
                <security mode="None" />
            </binding>
        </basicHttpBinding>
        <customBinding>
            <binding name="CustomBinding_GetData">
                <binaryMessageEncoding />
                <httpsTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" />
            </binding>
        </customBinding>
    </bindings>

    <client>
        <endpoint address="//localhost/MyApp/Webservice/Data.asmx"
            binding="basicHttpBinding" bindingConfiguration="DataS1"
            contract="ServiceReference1.DataS" name="DataS" />

        <endpoint address="//localhost/MyApp/Webservice/GetData.svc"
            binding="customBinding" bindingConfiguration="CustomBinding_GetData"
            contract="GetData.GetData" name="CustomBinding_GetData" />
    </client>

</system.serviceModel>
</configuration>