39372

canvas.getleft for image returns 0 in WP7

Question:

I m trying to get the image position in my canvas. But Canvas.GetLeft and Canvas.GetTop always return 0 even though I drag the image across the canvas. Here is the piece of code below.

private void MouseDragElementBehavior_DragFinished(object sender, MouseEventArgs e) { MessageBox.Show("Canvas Left Position" + Canvas.GetLeft(image1).ToString()); MessageBox.Show("Canvas Top Position" + Canvas.GetTop(image1)).ToString(); MessageBox.Show("Canvas Index" + Canvas.GetZIndex(image1)); }

Please let me know how to solve this issue.

Answer1:

The MouseDragElementBehavior uses a MatrixTransformation, not the canvas' top and left properties.

To retrieve the position, you can try using X and Y properties of the MouseDragElementBehavior:

private void MouseDragElementBehavior_DragFinished(object sender, MouseEventArgs e) { var behavior = (MouseDragElementBehavior)sender; System.Diagnostics.Debug.WriteLine("Position: " + behavior.X + " / " + behavior.Y); }

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