Tuesday, July 31, 2012 8:10 PM
Visual Basic 2010 has a control called "VScrollBar" I added it to a form which requires vertical scrolling.
Unfortunately I can't find any instructions for using the control, simply adding it to the form doesn't do anything.
Tuesday, July 31, 2012 8:29 PM
The control selected, you can press F1 and read the documentation how to use it.
Here's an overview of all controls: Controls to Use on Windows Forms
inlcuding HScrollBar and VScrollBar Controls
EDIT: Note that several controls also have an AutoScroll property, so maybe you do not have to implement scrolling on your own.
- Edited by Armin Zingler Tuesday, July 31, 2012 8:30 PM
Tuesday, July 31, 2012 9:23 PM
Armin, thanks for the super quick response.
I had reviewed the documentation previously and it left a lot of unanswered question, or items that I just don't comprehend.
In view of the fact that there is a control called "VScrollBar" in the Visual Basic 2010 Tool Box, the code to initialize a control seems superfluous. But, I had tried it anyway to no avail.
I tried the control from the Tool Box but couldn't get it to work because I just did not know what properties had to be set.
As of now after reading and trying all the documented items that I could find, I still haven't the vaguest idea how to add a vertical scroll bar to a windows form in Visual Basic 2010.
Tuesday, July 31, 2012 10:13 PM
Create a new Winforms application and a Form like this: (the left window is the document outline window to show you the relation of the controls).
A Picturebox inside a Panel, and a VScrollbar. All default properties (all but the backcolor of the panel).
Use this code:
Public Class Form1 Protected Overrides Sub OnLoad(ByVal e As System.EventArgs) MyBase.OnLoad(e) PictureBox1.Location = Point.Empty PictureBox1.SizeMode = PictureBoxSizeMode.AutoSize Dim bmp As New Bitmap(Panel1.Width, Panel1.Height * 3) Using g = Graphics.FromImage(bmp) g.Clear(Color.Black) g.DrawLine(Pens.Red, 0, 0, bmp.Width, bmp.Height) g.DrawLine(Pens.Red, 0, bmp.Height, bmp.Width, 0) g.DrawRectangle(Pens.Red, 0, 0, bmp.Width - 1, bmp.Height - 1) End Using PictureBox1.Image = bmp VScrollBar1.Minimum = 0 VScrollBar1.LargeChange = Panel1.ClientSize.Height VScrollBar1.Maximum = PictureBox1.Image.Height - 1 End Sub Private Sub VScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles VScrollBar1.Scroll PictureBox1.Top = -VScrollBar1.Value End Sub End Class
Then just try it and let me know if it's clear now.
- Marked As Answer by Shanks ZenMicrosoft Contingent Staff, Moderator Tuesday, August 07, 2012 8:37 AM