I have a Panel set to Auto Scroll and a Picture Box inside of the Panel that's set to Auto Size. I can use the scroll bars, but why wont my mouse wheel scroll the panel up and down?
View 4 RepliesThis is for a mapping/plotting program.
t.panel is the main panel and it has too much content to fit in one screen so there are scroll bars. x.panel contains the horizontal scale for the data points in t.panel. I drew the scale using a bitmap and set it as x.panel's background.
Setting x.panel's horizontalscroll.value = t.panel's horizontalscroll.maximum doesn't seem to work. I think this is because x.panel's doesn't have any content that causes it to need scroll bars.
I am using a panel control in vb.net (2010) to build a timeline of images. These are very small images (320x180) and I am running into a limit of 240. While the panel does not complain when I add more - it will only scroll to the 240th one.[code]...
I am counting on some of the built-in functionality of the panel in autoscroll mode (being able to bring any of the thumbnails into view), etc. I am certainly not averse to purchasing a third party control for this. I really need to be able to display 1000 or more thumbnails!
How do I code to scroll the panel using the mouse wheel when the mouse pointer is over the panel using the actual scrollbar?
View 1 RepliesI've recently decided to take a huge leap and migrate from my good old VB 6.0 to VB.NET, since VB 6.0 was proved to be fairly insufficient for my needs. So, I took a deep breath, loaded myself with a lot of patience and...here I am!The transition from VB 6.0 code to VB.NET seemed quite buffling in the beginning, but later on it proved to be pretty straightforward.So, now, I've decided to get my feet wet and develope my first VB.NET appication.The reason I'm here is that I would like an evaluation of my first code snippet in terms of efficiency, productivity and so on.
A description of what I'm doing is this: On a Windows form, docked at the left side, I have a panel set to AutoScroll. Inside it I've placed a number of panels, each one with a ToolStrip, having a button to collapse or expand the panel.It works so far, but I don't know how efficient my code is. Here is the code of a generic Click Event that handles the clicks of all toolstrip buttons.Each button has a Tag to indicate the state (expanded or collapsed) and each panel has a numeric tag for the height it would have when expanded.
Here is the code.
Private Sub Buttonclick(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles TSB_1.Click, TSB_2.Click, TSB_3.Click, TSB_4.Click, _
TSB_5.Click, TSB_6.Click
[CODE]...
So...what I would like to have is an evaluaion of this small code. It seems to be a bit larger than the code I could write in VB 6.0 and I'm sure that there is a better way.
I've dynamically added 20 pictureboxes to a panel and would like to see the panel scroll when I use the mouse wheel. To implement this I have tried to set the autoscroll to true on the panel control. Here is the code.
For i As Integer = 1 To 20:
Dim b As New PictureBox()
b.Image = Nothing
[Code]....
It works for "button" control, but not for the "picturebox" or "label" controls?
How can I implementthe scrolling affect using 'mousewheel'?
I need to center the red panel in the middle of the dark grey panel, when you resize the form the red panel should be in the middle, and the red panel can't be resize, anyone have a code or property to do this?
View 2 RepliesI am currently making a DOS type thing, called the Terminal Client, in visual basic 2008 express. I have 2 textboxes, one is a big multiline textbox for where all the command stuff goes. Then I have a second textbox at the bottom thats not multiline, and thats just for typing commands. I want to make the big multiline one scroll down as you put more and more commands into it.Something like this (which ive already tried):
textbox1.selectionstart = textbox1.text
textbox1.selectionlength = 0
I have a usercontrol I created. I added a panel and a vertical scrollbar to the right of it. I'd like to be able to scroll it with the mousewheel. The problem is there doesn't seem to be any events that fire on mousewheel. If I take the panel off then the usercontrol has focus and it will fire on mousewheel in the form. But with the panel on it doesn't seem to fire the mousewheel event of the panel, or the usercontrol within the control or even on the form. The best solution would be to have an event fire in the usercontrol but I'd even accept an event on the form and feed it back into the usercontrol.
I'm using vb.net and vs2005 if it matters.
I have a multiline textbox that while a file is read in some data is echo'ed out onto the textbox. Is is possible to programatically scroll the object down to the bottom? Changing everything over to a combobox and then changing the selected index would essentially do what I want, but the user needs to select/copy a bunch of lines.
View 5 RepliesWhen I look on the Internet I find many want to know how to get MouseWheel events with a UserControl.I'm getting scrolling with the mouse wheel and don't know why.It doesn't seem to be the default since I have other usercontrols that do not respond the the mouse wheel.In one UserControll I find if I move the mose wheel the contents moves. Actully moves too much for good viewing.I've searched the code for "Wheel" - no hits. Also for e.Delts - no hits. Finally I tried:
[code]...
Commented out as shown I do not get the unwanted mouse moves.If I remove the apostrophe I do get them.
Questions:
Is it OK to not call the Base sub in some cases?How do I find out if it is OK? (For example I don't imagine you'd want to not call it in New()Secondly and most important, What is going on? Why and I getting scrolling with the wheel in a Usercontrol and not getting it in other UserControls?
I can send global mouse click and mouse move, but how can I send a global mousewheel that I don't know which window or control was focused? Is that something doing with SendMouse?
View 1 Repliesthe MouseWheel event triggers 3 times every time i scroll ... this i believe is because i have my wheel set in windows to scroll 3 lines at a time but i am updating a "zoom" and only want it to trigger 1ce per wheel movement any ideas?
View 9 Repliesi created a datagridview whcih i am populating from a DB table.unfortunately i had to cancel the scroll bar's and lost the ability to scroll down using the mouse wheel.i was able to create a new handler to handle mouse wheel Under the form load event [code]but i still can't scroll down, and i am a bit lost.
View 4 RepliesI have a program that will keep adding info to a richtextbox, I want to to autoscroll to the end
this is what I have vb.net Private Sub RichTextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RichTextBox2.TextChanged RichTextBox2.SelectionStart = RichTextBox2.Text.Length - 1 RichTextBox2.ScrollToCaret()
Return
End Sub
the problem is that it will go back to the beginning of the richtextbox2 then it will go to the end and it keeps jumping like that. If there a "smoother" way to do this? So it wont keep jumping back and forth?
how do I disable the mousewheel scroll for a combobox. alternatively I don't mind if I can make it keep its original text without actually disabling mousewhell scroll
View 6 RepliesHow can I make a textbox's scollbars autoscroll? For my users to easily read the content in the textbox.The textbox is multiline.
View 5 RepliesIs there any way to determine if the mouse scrolls up or down using the Mousewheel handler on a sub? [code]I want to be able to adjust the value of userzoom up or down according to if the mouse is wheeled up or down.
View 2 RepliesHow can I let the user still scroll with their mousewheel when scrollbars in my webbrowser are disabled?
View 6 RepliesI have a program trying to use mousehover to pause the autoscroll. It is a widows form called:
lstOutput System.Windows.Forms.1 Below is how it is in my code.
Public Sub lstOutput_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstOutput.MouseHover
'Public EventMouseHover As EventHandler
lblPauseScroll.Text = "Output Paused" 'display output paused
'Highlight the DataGridView
Me.lstOutput.BackColor = Color.LightGray
[Code] .....
For some reason I have to click on the form to get it to pause the first time and then after that it does pause when I place the mouse over the form. It is that first time that it won't pause. The Public Subs I hand typed the codes in, is there some way that I should have added the mousehover to the form itself or are there other reasons that it won't work the first time?
i want to use a scroll bar in my VB.net form but with the AUTOSCROLL = false.
View 4 RepliesWell I am trying to autoscroll my ListBox or display everything the opposite way just like a shoutbox. how to do it. I have tried many ways but they either gave me errors or didn't work.
View 3 RepliesI have an app that on older monitors the form exceeds the screen size. I have the autoscroll set to True. However, the left part of my form is not visible...only the right side is completely visible ... via the scroll.
View 3 RepliesHow do you move the selected row to the next row using the wheel mouse in a datagridview?
View 2 Repliesi want to make the rich box to auto scroll down when the richtextbox is filed so that i dont need to manuel scroll down evry time a new message come in!
View 7 RepliesIs it possible to get the MouseWheel event from an Interoped ActiveX Control?
I have a DXF Viewer (with measure) control I wrote in VB6 that is quite frankly... Huge. It would take an inordinate amount of time to rewrite the whole thing and supporting tools in VB.NET. The MouseWheel event is used to Zoom in and Out. The control has a MouseWheel_Input() method to accept MouseWheel data from the host.
I added all the VB6 Mouse events, the Enabled Property, and The ActiveControl Property in VB6. Recompiled and registered the control on my VB.NET development machine. Added the control to my new VB.NET project and verified it has a focus method.
how to make the preview scroll (smoothly) with the mousewheel?
Private Sub print_preview_MouseWheel(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles print_preview.MouseWheel
If e.Delta............???
End Sub
I'm developing User Control. It have many picture box and I use MouseWheel event on every picture box. Why MouseWheel event work only after every picture box was selected?
View 6 RepliesI am using the Tabcontrol with autoscroll = True feature, when i make hidden controls visible on the tab there position is out of place, one work around for this is to set the scroll position to 0,0 by doing this...
[Code]....
I would like to add an effect where a panel sweeps out of the way to make room for another panel. This is sort of like a sliding effect, and I think at one point in time this could be seen on Apple's website under their product pages. I came up with some code, but it isn't working.
[Code]...