How to override the hyperlink string value generated from XML in DataGrid?

I have a scenario where I need to change the name of the hyperlink in datagrid after checking a RadioButton that resides in separate “Options” window. I launch this “Option” Window using ICommand that assigned to the same hyperlink. I have trouble renaming the hyperlink name. The hyperlinks are generated from XML using XMLDataProvider. I also use IValueConverter that converts XML string to ICommand. I hope to find solution here. Thank you in advance.

Link to the testing solution: http://cid-0c29483cf3a6a14d.office.live.com/self.aspx/WPF%5E_Tests/RenameHyperlinkText.zip

Code below.

Generating dataGrid with hyperlinks XAML in Main Window:

<Window.Resources>
    <local:MyStringToCommandConverter x:Key="MyStringToCommandConverter"/>
    <XmlDataProvider x:Key="MainDataGridLocal" XPath="ServicesTiles/Servers">
        <x:XData>
            <ServicesTiles xmlns="">
              <Servers Name="Name 1" Status="None" Name2="Name 2" Status2="Never" Command="LaunchOptionsWindowCommand" />
              <Servers Name="Name 3" Status="none"  Name2="Name 4" Status2="None" />
            </ServicesTiles>
        </x:XData>
    </XmlDataProvider>
</Window.Resources> 
<Grid x:Name="LayoutRoot" DataContext="{Binding Source={StaticResource MainDataGridLocal}}">
    <DataGrid x:Name="MainGrid" AutoGenerateColumns="False" ItemsSource="{Binding XPath=/ServicesTiles/Servers}">
        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding XPath=@Name}" />  
            <DataGridTemplateColumn >     
                <DataGridTemplateColumn.CellTemplate>         
                    <DataTemplate>             
                        <TextBlock >
                            <Hyperlink Command="{Binding XPath=@Command, Converter={StaticResource MyStringToCommandConverter}}" >                
                                    <TextBlock Text="{Binding XPath=@Status}" />
                            </Hyperlink>
                        </TextBlock>         
                    </DataTemplate>     
                </DataGridTemplateColumn.CellTemplate>                          
            </DataGridTemplateColumn> 
            <DataGridTextColumn Binding="{Binding XPath=@Status2}"/>
            <DataGridTemplateColumn >     
                <DataGridTemplateColumn.CellTemplate>         
                    <DataTemplate>             
                        <TextBlock >
                            <Hyperlink >                   
                                <TextBlock Text="{Binding XPath=@Status2}" />
                            </Hyperlink>
                        </TextBlock>         
                    </DataTemplate>     
                </DataGridTemplateColumn.CellTemplate>                          
            </DataGridTemplateColumn> 
        </DataGrid.Columns>
    </DataGrid>
</Grid>

Code behind to run command:

public partial class MainWindow : Window
{

public static RoutedUICommand OptionsWindowCommand = new RoutedUICommand("Options...", "Options", typeof(MainWindow));

    开发者_开发百科public MainWindow()
    {
        this.InitializeComponent();
        this.CommandBindings.Add(new CommandBinding(OptionsWindowCommand, OptionsWindowCommandExecuted));
    }
    private void OptionsWindowCommandExecuted(object sender, ExecutedRoutedEventArgs e)
    {
        OptionsWindow theDialog = new OptionsWindow();
        if ( theDialog != null )
            theDialog.ShowDialog();
    }
}

OptionsWindow XAML with RadioButtons and OK button:

<Grid x:Name="LayoutRoot" Height="250" VerticalAlignment="Top">
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <Button Content="Cancel" VerticalAlignment="Bottom" Margin="0,0,20,0" OpacityMask="#FFE0DADA" IsCancel="True" HorizontalAlignment="Right" Width="75"/>
    <Button Content="OK" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="75" Margin="0,0,103.06,0" IsDefault="True" />
    <StackPanel HorizontalAlignment="Center"  Width="158" VerticalAlignment="Center">
        <RadioButton x:Name="a_RD" Content="1_RD" Height="25"/>
        <RadioButton x:Name="b_RD" Content="2_RD;" IsChecked="True" Height="25"/>
        <RadioButton x:Name="c_RD" Content="3_RD" Height="25"/>
    </StackPanel>
</Grid>

I'm not sure I fully understood your question but I took a stab at it anyway. You can use CommandParameter to send a parameter with the Command. If you use CommandParameter="{Binding}" you'll get the corresponding XmlLinkedNode for the clicked row (i.e. its DataContext) and from there you can access the attributes in it.

<DataGridTemplateColumn >     
    <DataGridTemplateColumn.CellTemplate>         
        <DataTemplate>             
            <TextBlock >
                <Hyperlink Command="{Binding XPath=@Command, Converter={StaticResource MyStringToCommandConverter}}"
                           CommandParameter="{Binding}">
                    <TextBlock Text="{Binding XPath=@Status}" />
                </Hyperlink>
            </TextBlock>
        </DataTemplate>     
    </DataGridTemplateColumn.CellTemplate>                          
</DataGridTemplateColumn>

Then you could do something like this in OptionsWindowCommandExecuted. I might add that I'm not that familiar working with XmlDataProvider so the Attributes["Status"].Value might not be the recommended way :)

private void OptionsWindowCommandExecuted(object sender, ExecutedRoutedEventArgs e)
{
    OptionsWindow theDialog = new OptionsWindow();
    XmlLinkedNode xmlLinkedNode = e.Parameter as XmlLinkedNode;
    if (theDialog != null)
    {
        if (theDialog.ShowDialog() == true)
        {
            xmlLinkedNode.Attributes["Status"].Value = "Available";
        }
    }
}

Update
Some sample code to set different values depending on which RadioButton the user checked

In OptionsWindow.xaml.cs

public string CheckedRadioButtonContent
{
    get;
    set;
}

private void OKButton_Click(object sender, RoutedEventArgs e)
{
    if (a_RD.IsChecked == true)
    {
        CheckedRadioButtonContent = a_RD.Content.ToString();
    }
    else if (b_RD.IsChecked == true)
    {
        CheckedRadioButtonContent = b_RD.Content.ToString();
    }
    else if (c_RD.IsChecked == true)
    {
        CheckedRadioButtonContent = c_RD.Content.ToString();
    }
    DialogResult = true;
}

MainWindow.xaml.cs

private void OptionsWindowCommandExecuted(object sender, ExecutedRoutedEventArgs e)
{
    OptionsWindow theDialog = new OptionsWindow();
    XmlLinkedNode xmlLinkedNode = e.Parameter as XmlLinkedNode;
    if (theDialog != null)
    {
        if (theDialog.ShowDialog() == true)
        {
            string checkedRadioButtonContent = theDialog.CheckedRadioButtonContent;
            xmlLinkedNode.Attributes["Status"].Value = "Available_" + checkedRadioButtonContent;
        }
    }
}