Passing Button_Click Tag to another page WPF C#

Question

Hi have a button with click event & tag value binding from an XmlDataProvider;

<Button x:Name="Open" Tag="{Binding XPath=Id}" Content="Open" Click="OpenProject_Click" />

and in my xaml.cs click event code (creates new TabItem, with other page content);

  private void Open_Click(object sender, RoutedEventArgs e)
    {
                var ID = ((Button)sender).Tag;

                TabItem tabitem = new TabItem();
                tabitem.Header = ID;
                tabitem.Tag = ID;
                Frame tabFrame = new Frame();
                Pages.Views.View newTab = new Pages.Views.View(ID);
                tabFrame.Content = newTab;
                tabitem.Content = tabFrame;
                AppTabs.Items.Add(tabitem);
                tabitem.Focus();

    }

Below is my Other Page code;

    public partial class View : Page
{
    Object valueFromPage1;

    public View()
    {
        InitializeComponent();
    }

    public View(Object val)
        : this()
    {
        valueFromPage1 = val;
        this.Loaded += new RoutedEventHandler(View_Loaded);

    }
    void View_Loaded(object sender, RoutedEventArgs e)
    {
        text.Text = "Value passed from page1 is: " + valueFromPage1;
    }
}

Problem is that the value that appears on the other page as System.Xml.XmlElement when it need to be the ID Value (which is a number). Is there away to convert the System.Xml.XmlElement back to the button.Tag value?

Answer 1

That the value appears as "System.Xml.XmlElement" indicates that the Tag is an XmlElement . It has an attribute InnerText that contains its value (which should be the Id you are looking for).

var ID = (((Button)sender).Tag as XmlElement).InnerText;