how to move a picture box diagonally on button click vb 2010 - vb.net

Question

I have a project that I am working on where I would like a picturebox to move diagonally on a button click. I've tried using PictureBox1.Left = 10 and PictureBox1.Top = 10 but that makes it so it goes left once and top for the rest of the button clicks. I would like it so when i click the button, the picturebox moves diagonally once and not multiple times separately. Is there any way where this is possible? This is the code I have so far
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
PictureBox1.Left -= 10
PictureBox1.Top = 10
End Sub
Added from comments
I've tried the timer but it made the same mistake as the button. This is the code for the timer.
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
PictureBox1.Left -= 10
PictureBox1.Top = 10
End Sub

Answer 1

The main problem in your code is you are moving the PictureBox to a fixed Y position = 10 and only changing it's x position by -10 each time.
So it doesn't move diagonally and it jumps to Y=10 and moves to left each time you click on button.
You need to set:
PictureBox1.Left -= 10
PictureBox1.Top -= 10 'Here you used PictureBox1.Top = 10
To show it as animation, you can use a timer with interval = 100 and change left and top -=1.
You can increase the speed by decreasing the interval and increasing the movement.

Answer 2

You can try setting the Location of your picturebox, instead of each axis individually. Something like this.
PictureBox1.Location = New Point(PictureBox1.Left - 10, PictureBox1.Top + 10)