CODEWITHSUNDEEP
vb.netwinforms
Alex Gordon
Alex Gordon

Reputation: 60902

dragging picturebox inside winform on runtime

i need to be able to drag and drop my picturebox with an image in it around my winform in vb.net.

Upvotes: 1

Views: 13539

Answers (3)

Jamie L.
Jamie L.

Reputation: 144

Code similar to the answers provided exist in this DreamInCode.com thread. Another thing the thread addresses is keeping the picturebox within the bounds of the form and resizing the picturebox.

Upvotes: 0

user79755
user79755

Reputation: 2731

Here's some VB.NET


    Private IsDragging As Boolean = False
    Private StartPoint As Point

    Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseDown
        StartPoint = PictureBox1.PointToScreen(New Point(e.X, e.Y))
        IsDragging = True
    End Sub

    Private Sub PictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
        If IsDragging Then
            Dim EndPoint As Point = PictureBox1.PointToScreen(New Point(e.X, e.Y))            
            PictureBox1.Left += (EndPoint.X - StartPoint.X)
            PictureBox1.Top += (EndPoint.Y - StartPoint.Y)
            StartPoint = EndPoint
        End If
    End Sub

    Private Sub PictureBox1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseUp
        IsDragging = False
    End Sub

Upvotes: 1

djdd87
djdd87

Reputation: 68516

This is in C#, but should be easy enough to replicate in VB.Net.

private int   currentX, currentY;
private bool  isDragging = false;

private void myPictureBox_MouseDown(object sender, MouseEventArgs e) 
{
  isDragging = true;

  currentX = e.X;
  currentY = e.Y;
}

private void myPictureBox_MouseMove(object sender, MouseEventArgs e) 
{
  if (isDragging) 
  {
    myPictureBox.Top = myPictureBox.Top + (e.Y - currentY);
    myPictureBox.Left = myPictureBox.Left + (e.X - currentX);
  }
}

private void myPictureBox_MouseUp(object sender, MouseEventArgs e) 
{
  isDragging = false;
}

Upvotes: 6

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