Tab Control Scrolling - Middle Mouse Wheel Doesn't Scroll The Scroll Bar

May 22, 2012

I have a tab control with two tab pages. One page has the auto scroll enabled since there is to much content in the page. The middle mouse wheel doesn't scroll the scroll bar; I have to actually click and hold the scroll bar and drag it down to scroll. Is there a property to allow this?


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Mar 9, 2009

I have 1 panel and 1 picturebox and I want to scroll up/down picturebox with mouse wheel.

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Does anyone know of a way to disable the mouse scroll wheel when a control such as a ombobox or listbox has focus? For my purposes, combobox is all I need the answer for.I have a combobox set to trigger a SQL query on SelectedIndexChanged, and accidentally scrolling the wheel while the combobox has focus causes about six SQL queries to fire off simultaneously.

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Feb 25, 2009

My application uses a trackbar to sort images.It works best if the mouse wheel scroll lines value is one.I can advise my users to set the value themselves in the control panel having determined it is three, but I cant set a users scroll value to one for them.I would like to have some visual basic code in the form load that sets the scroll line value to one.

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Mar 14, 2012

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Dec 10, 2009

Following default the datagridview will scroll following vertical. How can i do that. I tried :

DataGridView1.ScrollBars = ScrollBars.Horizontal but not work

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Nov 11, 2010

I am having an odd problem with the Horizontal Scroll Control in my program.I am using it to scroll a series of panels across a form.This is my code:

Sub scrHoriz_Scroll(ByVal
sender As[code]....

The problem is that this works perfectly if I use the left and right arrows and it also works perfectly if I use the scroll bar's slider SLOWLY. If I scroll using the slider and move it quickly then the scroll gets out of sync.The small change and large change are both set to 1 and maximum is set to 8

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Aug 5, 2011

I have a DataGridView with a panel above it, that contains a group of textboxes above each column. My DataGridView has a horizontal scroll bar. What I want to do is when the DataGridView scrolls horizontally, scroll the panel with textboxes above it, so they stay aligned.I tried handling the DataGridView's scroll event, but I'm not sure what to do with it.

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Apr 1, 2010

I have a form in VB.Net with Autoscroll enabled and several ComboBoxes within it. When I click on a ComboBox, I can use the mouse wheel to scroll through options, but I cannot deselect the ComboBox (by clicking off it on a blank portion of the parent form) in order to return to scrolling the parent form. This makes navigation in the form annoying, as I instinctively click off the control and flip the scroll wheel, causing the ComboBox to change selections instead of moving the parent form.

Is there a way to make this work in the intuitive way I expect it to, or do I have some conceptual confusion that makes this the wrong question to ask?

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Jan 15, 2009

Is it possible to emulate a mouse wheel scroll up/down with VB?

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Dec 30, 2011

I am overriding the WndProc to capture the WM_VSCROLL of a textbox / RTB... However this does not seem to capture the scroll event if it happens from a scroll wheel of a mouse ... how can i pick this up?... i can't use the MouseWheel event because this occurs when the mouse is scroll wheel is actually turned and not after the content is actually scrolled.

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C# - Shift + Mouse Wheel Horizontal Scrolling

Oct 19, 2011

The use of shift + scroll wheel is fairly common for horizontal scrolling.

Both of those are fairly easy to capture. I can use the MouseWheel event with a flag set by the KeyDown, KeyUp events to keep track of when the shift key is pressed.

However, how do I actually trigger the horizontal scrolling? I am aware of WM_MOUSEHWHEEL, can that be used to trigger the event?

Update: For a System.Windows.Form there is a HorizontalScroll property that is of type HScrollProperties. You can manipulate the Value attribute on that object to change the horizontal scrollbar's position. However, so far I haven't spotted any other controls on which that object is available.

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Oct 7, 2009

how to disable mouse scrolling only in selected combobox..ex. i want only scroll function ius disable only in combobox1 and combobox2

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Jul 27, 2010

I have a form which has a horizontal scoll bar, a vertical scroll bar, and a panel. The 2 scroll bars move the panel. When I execute the form, the panel will scroll under the horizontal scroll bar when using the vertical scroll bar. But it scrolls over top of the vertical scroll bar when using the horizontal bar. I don't understand why 1 of them goes over and the other 1 goes under. Is there some property that controls this? Or some way to that 1 set it up wrong? The vertical scroll bar is on the left edge of the form , to the left of the panel, and the horizontal scroll bar is near the top of the form, above the pane. Can anyone direct me as to how to get it to stop scroll over this bar?

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Mar 14, 2010

How to make 2 list box scroll together in VB 2008?

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Feb 7, 2011

I am new to programming- basically I have a richtextbox1 with some data from the database,but when you scroll it scrolls 3 lines, whereas I want to scroll only one line at a time.

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim mySelectQuery As String


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VS 2008 Disable Scroll Bars But Enable Scrolling?

Feb 4, 2010

I am building a basic web browser that I would like to not have any scroll bars (I can do this by setting the "ScrollBarsEnabled" button to False) but also still be able to have the scroll fulction via keyboard shortcuts.

IE when you press page up and down the page scrolls, but when they are disabled you can no longer use the page up and down keys to scroll.

Is there any "scroll function" in the browser like WebBrowser1.scrolldown etc that I could use? that I can have key strokes trigger?

A bit of an over view, the web browser is hosted in other software that has customizable buttons, these buttons can be set to send key strokes to the hosted app in this case my web browser.

Example of what I do for my home button

Private Sub browser_homebutton(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs) Handles browser.PreviewKeyDown
If e.KeyCode = Keys.H And e.Modifiers = Keys.Control Then


Is there something similar I can do for scroll up and scroll down?

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VS 2010 Way To Control Mouse Wheel Rotation With A Simple API / Without To Hook Mouse?

May 24, 2012

The GetAsyncKeyState Api does'nt recognizes the mouse wheel rotation, I see.Is there way to control the mouse wheel rotation (always, not only when the pointer is over a form of mine) with a simple API, without to Hook the mouse?

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VS 2010 Panel Auto-scroll Will Not Show Vertical Scroll Bar?

Jun 12, 2011

I am loading several command buttons into it (one in each grid box). I have the panel set to autoscroll. When TableLayoutPanel is set to AddColumns, all works well. However, I dont want horizontal scroll, I want vertical. When I set TableLayoutPanel to AddRows, a vertical scrollbar will not appear.

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Jan 6, 2010

How would I leave the vertical scroll position as it is and set the horizontal scroll position all the way left if it isn't already in that position? I've been using Me.AutoScrollPosition and have come up with code that is satisfactory but I haven't been able to always leave the vertical scroll position exactly as it is and just move the horizontal scroll position to the left limit.

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Mar 13, 2010

I have a textbox that shows events on a program, which I add. I use the 'scroll bar' option on the textbox to show the vertical scroll bar, but how do I make it stay at the bottom most possible? I am using this code while I am trying to learn how to do what I want the scroll bar to:[code]But how do I get it so the scroll bar will stay at the bottom-most it can? I'd like the newest, most recent events to appear at the bottom of the textbox, and to have the user not have to scroll down every time something new is added.

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Box Doesn't Auto-scroll Down To End

Jan 15, 2012

Well un-like the textbox when AppendText() is used, the box doesn't auto-scroll down to the end, now I already know about caret position scrolling & all that but if I use it it seems to scroll slightly past the endline about enough to show yet another line if there were one.Now I was going to use code from a post I had inquired about similar but it's not working here in vista(SendMessage function) isn't functioning at all, it says the endpoint wasn't found, I guess meaning the function in the .dll wasn't found to be used.url...It was originally for a textbox to retain position if your not scrolled down to the bottom, which I want to keep such functionality in a RichTextBox but make it scroll to the bottom otherwise(hopefully not the slightly too far problem I have with caret position now...)

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Scroll Bars Not Long Enough To Scroll Panel Far Enough?

Aug 19, 2009

i have 2 controls on a form. Panel1 and picturebox. I am using the following code to zoom in.

PicBox.Width = PicBox.Width + 100
PicBox.Height = PicBox.Height + 75
'PicBox.Left = PicBox.Left - 50
'PicBox1st.Top = PicBox.Top - 20

i am also using the following code to try and scroll whilst zoomed in

Inherits System.Windows.Forms.Form
Private m_PanStartPoint As New Point
Private Sub picbox_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PicBox.MouseDown
'Capture the initial point


I have set the panel to autoscroll and added scroll bars but they do not scroll far enough... They only scroll about 2cm.

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Dec 10, 2009

I searched on internet but i have not find out !

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Jan 30, 2011

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Mar 12, 2012

I am creating some help files by using a TabContol box, on one of the tabs I need to have the scroll bars to be able to scroll down to see all the info.In nearly all software packages that I know of, you can also use your mouses' scroll wheel to move the scroll bars. This is not happening for me in this particular situation. I have looked for a setting in the TabControls properties settings, but cannot find anything to enable the mouse to move the scroll bars.

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Jan 10, 2012

I'm making a chat, but when the messages appear in a textbox, it doesn't auto scroll down. Is there a way to auto-scroll down when the messages appear?

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Jul 6, 2010

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Mouse Scroll Up And Down Event Is Not Triggered On Picturebox?

Nov 15, 2010

I have a picture box in my form and now I want to add an event so that if the mouse is scrolled up the scale of the picture box gets larger and when the user scrolls down the size off the picture box gets smaller. This way I want to make a zoom in and out effect.So now i have the following code in the mouse wheel event of the Picture box:



But somehow this whole mouse wheel event isn't fired.

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Aug 30, 2009

I'm trying to make an autoscroll enabled panel that will scroll if the mouseposition.x > panel.location.y However, I cannot seem to find a panel.scroll() function. Is there a way to programable make the control scroll?

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Sep 26, 2010

I try to catch the keydown event, but arrow keys don't fire this event, although I set KeyPreview = True. Arrow keys neither fire the KeyUp event. Not on the form or on any controls..

What is required to handle:

1. Arrow keydown or keyUp event with individual event handler based on mouse focus/hover (does the control have focus if mouse hovers on it, or it needs to be clicked?)

2. Mouse scroll events individually based on "mouse focus"

I don't actually need for the form... Since all the form is covered by controls.. But I need individually for different controls. Which are just buttons, labels and a chart control.

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Jul 16, 2009

how to capture the mouse wheel if the mouse is directly over my control - regardless of what form / control has focus?? - however if another window or control is over the control at the time it won't scroll.

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Mar 9, 2009

I have a datagridview in my for that contain some infos like name of a file, date and hour but the vertical scrollbar doesn't work, the scroll doesn't move. Here's my code

If Me.ofd_Fichier.ShowDialog() = DialogResult.OK Then
Dim str_Fichier As String
For Each str_Fichier In ofd_Fichier.FileNames


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I Want Just Ask If It's Possible I Have A RichTextBox And I Wanted To Detect If The Control Needs A Scroll Bar But Without Performing The Any Other Function (Without Changing The Text).

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I am working in vb2008.  I understand how to set a richtextbox's selectedstart property to a text block using .find.  I would like to know how to tell the richtextbox to scroll to the selected position based upon the find operation and show its position at the top of the window.  I would like to pass text blocks into my richtextbox control and have the control automatically scrolll to that position if the text block is found.

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I have a Web Browser in my form. I am continually adding strings of html to it. I want the web browser to scroll all the way down each time data is sent to it.[code]...

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I have a panel wich inherits from FlowLayoutPanel. I add a lot of picturebox to it. I allow the user to navigate through them with arrow keys. Since I have a lot of PictureBox, most of them doesn't appear at the visible rectangle of the panel. I want this panel to scroll to the selected control when user selects it. For select a PictureBox I made a class wich inherits from it and override the OnPaint sub. I also have a field m_selected to determine whether the PictureBox is selected or not. On OnPaint sub if this field is set to true, I draw an orange border to notify the user that this control is selected, otherwise I draw a simple black one. In the panel I also have a m_currentsel field to save the control wich is actually selected. When user selects a control this field contains the selected control.

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