WPF - pass data from page A to page B - wpf

Question

So I want to pass data when I clicked an Canvas. So I have this code;
Canvas event_canvas = new Canvas();
event_canvas.Background = new SolidColorBrush(Color.FromRgb(66, 70, 77));
event_canvas.Width = 250;
event_canvas.Height = 60;
event_canvas.Margin = new Thickness(40, 0, 0, 0);
event_canvas.HorizontalAlignment = HorizontalAlignment.Left;
event_canvas.VerticalAlignment = VerticalAlignment.Top;
event_canvas.Cursor = Cursors.Hand;
#endregion
#region Grid (event_grid)
Grid event_grid = new Grid();
event_grid.Width = 250;
event_grid.Height = 60;
#endregion
#region TextBlock (event_text)
TextBlock event_text = new TextBlock();
event_text.VerticalAlignment = VerticalAlignment.Center;
event_text.HorizontalAlignment = HorizontalAlignment.Center;
event_text.Foreground = new SolidColorBrush(Color.FromRgb(255, 255, 255));
event_text.Text = e.name;
#endregion
event_grid.Children.Add(event_text); // Add the textblock to the grid
event_canvas.Children.Add(event_grid); // Add the grid to the canvas
grid_events.Children.Add(event_canvas); // Add the canvas to the main grid.
// Click event registration
event_canvas.MouseLeftButtonDown += Event_canvas_MouseLeftButtonDown;
And then in the trigger;
private void Event_canvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Page pg = new EventDetailPage();
// Replaces all the content!!!!!
this.Content = pg;
//throw new NotImplementedException();
}
I tried to add this;
var param = ((TextBlock)sender).Text;
Page pg = new EventDetailPage(param);
But that code doesn't work, it throws an error that I can't get a value.
How can I fix this issue?

Answer 1

Cast the sender argument to Canvas and then access the Grid through the Canvas' Children collecton and the TextBlock through the Grid's Children collecton:
private void Event_canvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Canvas canvas = (Canvas)sender;
Grid event_grid = canvas.Children[0] as Grid;
TextBlock event_text = event_grid.Children[0] as TextBlock;
string text = event_text.Text;
...
}