The Vertical Scrollbar Of Datagridview Will Be Un-functional
Sep 1, 2009
I faced a problem that the vertical scrollbar of datagridview will be un-functional.Here are the steps to rebuild the problem:
1. Add a new datagridview component.
2. Add a new timer to set the datasource of datagridview at a regular time. For example, I add following code on the Timer1.Tick event:
Dim v_connDB As New Odbc.OdbcConnection
Dim v_daCA2 As New Odbc.OdbcDataAdapter
Dim v_dsCA2 As New Data.DataSet
[code]....
3. Then I press the down arraw key on the vertical scrollbar with mouse while the datagridview re-bind its datasource, the vertical scrollbar will be un-functional. And the action will be changed to be re-size the datagridview will I press the vertical scrollbar position.So, is it the bug of datagridview? How can I fix it?
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
So with the stock Textbox, I set the Scrollbars property to Vertical. This is great if the text in my box never changes; I can scroll up and down while the box sits still. If I'm running a background operation that logs output to the box though, the scrollbar resets itself to the top every time I append text to the box.
I know I can set the Textbox.Selection property (or use the Select method) to reposition the carat in the textbox, make note of that position in a variable, then append text, reset the carat, and use the ScrollToCarat method to reposition the scrollbar where it belongs. That's a really (ridiculously) long way around. Anybody know if there's another/better way of holding the scrollbar position, short of actually building a custom control (or using a Textbox and a separate Scrollbar)? It never hurts to try. In a worst case scenario, you'll learn from it.
My problem is that I built this program for my VB class, but I built it on my desktop at home which is a 23" monitor. When this is opened on a smaller screen, you dont get to see all of the project. I want to add a vertical scroll bar but that is beyond what I have been taught and beyond what my book teaches...
how to get a vertical scroll bar to scroll the whole form?
The scroll bars actually move now, They just move the wrong thing. When I click the Horizontal bar it moves the picture box to the left part of the screen and I can scroll the box back and forth. If I click the Vertical Bar it goes up to the top and I can move it up and down. So if I click both of them, the picture box goes to (0,0) of the form. It wont move the image inside. I can't figure out how to assign the scrollbars to the image instead of the picturebox.
Try making a form with a Picturebox, Vertical Scrollbar and Horizontal Scrollbar in it and rename all your stuff the way I got mine: Horizontal Scrollbar = hsbPicMap Vertical Scrollbar = vsbPicMap Picturebox = picMap
Set the image property in the properties box to whatever you want. Try to make the picturebox of fairly big size. Mine is set to 656, 528 in pixels, and the location is 152, 72 on the form. The image I am using is about 1500, 1200. The bars are on the right side and the bottom of the picturebox. Code: Public Class frmMap Inherits System.Windows.Forms.Form Private Sub HSBpicMap_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles hsbPicMap.Scroll picMap.Left = -hsbPicMap.Value [Code] .....
I have a listbox which content is based on a treeview. When the user doubleclicks an item in the listbox the treeview will be updated and aftervards all the items in the listbox will be removed and the text of each TreeNode in the TreeView will be addedto the ListBox
I have a TextBox control with a lot of text which has a vertical scrollbar, and every time I hide/show the control the position of the scrollbar stays the same. I'm trying to figure out how to change the position of the scrollbar to the top of the textbox, as if it were at the beginning of the text.
I have windows application in which I have web browser control. I want to display vertical scrollbar, somehow its not getting displayed. Is there any way of enabling the scrollbar or any property which need to be set. I have already set the ScrollEnabled
is it possible to change the width of the vertical scrollbar in a listview .When the scrollbar width is bigger, its easier to operate by hand on a touch screen.
I'm having a problem assigning the arrow keys to the right scrolling events.I have a VScrollbar and an HScrollbar. I want the left / right arrow keys to scroll the horizontal bar, and the up / down arrow keys to scroll the vertical bar. The default behaviour seems to be that the first created of the two (VScrollBar or HScrollbar, depending on order of creation) received all arrow key events as a Scroll event. So when I push up / down / left / right, it is my VScrollbar that moves (HScrollbar might move also with the left / right arrow keys, I don't remember). I tried catching the KeyDown event on my form, to manage the left / right / up / down keys myself, but apparently the Scroll events are triggered first...In any case, what would be the "right" way to use a vertical and horizontal scrollbar and have the arrow keys do what they're supposed to do in VB. NET?
When a panel's AutoScroll is set True then it will add scrollbars for navigation of the entire size of its content. What I want is to be able to set the vertical scrollbar to go to top or zero so its contents top controls will be viewable.
I have a load of information on my label in a groupbox on the form there is too much information to be seen in one go so i want to use a vertical scrollbar to move the label up and down inside the groupbox so it can be read.
The issue i'm having is:
1: The label covers the bottom edge of the groupbox (looks a little naff) i need it to fall inside the groupbox if possible.
2: Any movement on the vertical scrollbar seems to send the label in one direction only - so how do i work it so that up moves it up and down moves it down?
Should i use a multiline textbox rather than a label and move the carat?
I need to set the background color of a label based on the value of a vertical scrollbar. i.e, if the user click the vScrollBar the background color of label must change like from 0 to 255.if it reaches to 255 again initialise to 0. I tried color.FromARGB function but it is not working.
I have been working on a much larger project and came to a point where I decided threading should be used.It seems in previous version of .Net, a background worker was able to update controls that were were not created on that thread. Now, it doesn't seem to be the case.I basically just began a new small project to try and teach myself the basics.Form1 Consists of A listbox, A progress bar, a label and two buttons, one to start and one to cancel.
imports system.threading private sub btngo(byval sender as system.object, byval e as system.eventargs) handles btngo.click pbprogress.minimum = 0[code=....
This code appears to be updating the listbox.I can see the vertical scrollbar getting smaller, but no data is shown in the listbox. The progressbar is also updating properly while that is working, indicating proper background operation.But what it's not doing is this:
1. Label is not updating percentage
2. The form is not free to be used by the user (me)
I'm working on a VB.NET application using VS2010 for an application that will run on a touch-screen. I have a problem with a mutli-line text boxes, ListBoxes and DataGridView controls which contains a vertical scroll bar. The scroll bar is too small for anyone with big fingers. Is there any way to make that scroll bar wider so that it's more "finger friendly"?
is there a way to display my dgv vertically?for example, this is how it displays now:Field1 | Field2 | Field3 | Field4 | Field5i want it to be displayed as:
I'm having trouble finding a property of the DataGridView that allows me to turn on both Vertical and Horizontal Gridlines. Does this exist? I can't imagine it not existing but I can't seem to find it.
My problem is that when I click continiously the bottom button of a vertical scroll bar (datagridview) the datagridview maximises and expants to all my screen.
How can I programatically control the position of the vertical scroll of a DataGridView? I need to keep visible the last row added to a table and showing as the last row at the bottom in the DataGridView control so the user doesn't have to be scrolling down every time to see a new row that has been added.
I can see the use of the Offset for the Horizontal Scroll Bar but for the Vertical Scroll bar of the DataGridView it can only be "Get" but not "Set".
I have a datagridview for showing the reports. Here the datagridview vertcial scroll bar wont workbut it show the both horizonadal, vertical bar.but horizadal bar only worked anot vertical bar.I have explained my process. I have taken a report from Exchange server and stored the Sql database. After finishing the data collection then I have again select some of the fileds only from Database via datatable. I have copied my datagridview using datagridview datasource.
I have seached through the net to find a solution to customize the scrollbars on a datagridview. I found some stuff, but this seem to be not very easy.
I've been searching for a while on an answer to this problem. I have a datagridview in my vb.net app and the right most column holds multiline cells. The vertical scroll bar doesn't redraw correctly:
i have a datagridview with the scroll bar property's set to "both", but when the data is too long horizontally it wont show the horizontal scroll bars only the vertical. And instead it puts "..." The DGV isn't docked, or bound to any data source, im adding data programmatic
I have the following code to resize the datagridview but the vertical and horizontal scroll bar are not shown when there are colunns and rows exceed the width and height of datagridview objects.Bascially the following code is similar to dock to the botton, the only difference is docking to the botton change the Y position of datagridview and fill the botton section whereas my code fix the Y position of datagirdview and fill the bottom.[code]I have tried with the dg.ScrollBars = ScrollBars.Both but it it is not working as well..May i know how to get both scroll bars working.
