I've been using 'GetScrollInfo' to find the position of the scrollbar on a ListView and I can detect when it hits the bottom of the list. Is there anyway I can raise an event when the scrollbar changes? At the moment I have it working by using a timer but I would rather if possible create an event to fire my routine.
View 1 Repliesis 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.
View 1 RepliesI need to set a variable upon the user scrolling to the end of the text on the textbox ("Scroll to end to accept terms") type thing but I can't seem to find how to get the value.
View 2 RepliesI have a listview, and when you right click, it shows some things. I need to make it see if an item on the listview is selected. Is there a way to do this?
Like, this doesn't work, but in code it would be like
If listview1.HasItemSelected = true then'code here end if
Is it possible to change the scrollbars color?
Reason I ask is because look at this:
The scrollbars stand out like a sore thumb.
[code].....
View 1 RepliesCan someone please help me create a very very simplistic sample page as the chat page included is too coomplete. something as simple as detecting a change in the database and displaying the word "change" on screen in realtime for any client connected.and I tried creating a global.asax file into which I added in the line mentioned in the link above, but it does not seem to like the word "Setup" in the line [code]
View 2 Repliesi want to detect if listview has been updated
eg: there are listview1,listview2 and a button1 .u can send items to listview2 from listview1 .if the listview2 has an item button1 will enable if the listview2 is empty button1 will disable
what is the suitable event for this?? (there is an event called BindingContextChanged is it the suitable event?if so how to use it??)
Is there a way to make custom scollbars in listview? And could someone please show me how, step by step. I'm completely new at this
View 2 RepliesI'm currently housing a ListView on a single form, and then adding buttons to this ListView via code-behind. Everything works wonderfully except the fact that when there are too many items added to the list it doesn't create a vertical scroll bar? I can simply add as many buttons as I want to it without it creating one? Here's the code that adds the button to the list: [Code]
View 2 RepliesI need help on improving the performance of a program I wrote some time back. This is the main performance issue of the program below. Basically I need to look through some data that is displayed to a user in a list view and determine if the data is a duplicate of any other data in the list. If it is I need to delete the duplicate before my program continues.The below code does the job just fine, however the list view of data has approximately 30,000 rows of data. Hence looping this list 30,000 to the power 30,000 times makes the program very slow. Note subItem(4) in the data is the "unique" identifier that I later discovered was not so unique....
This was a work around function implemented in the code back when I wrote it (not meant to be permanent). I know that listView is not Ideal to store this much data.how to store the data in a more efficient manner or improve the performance of the Search and Delete [code].....
I'm using a RichTextBox and wondered if it's possible to change the height of the horizontal scrollbar. I don't hve much room to fit the RTB so I need to reduce the height of the scrollbar.
View 2 RepliesI read in a book about changing font size in a label via a scrollbar. I was wondering if it is possible to do this with a rich text box.I have the following code
Private Sub vsbHeight_Change()
rftOutput.FontSize = vsbBar.Value
rftFontHeight.Caption = vsbBar.Value
[code].....
I have a listview control. it has an imagelist attached to it with two images in it. I have entered items into my listview, and they are using the first image in my imagelist.... GREAT! Now, there is a variable I have that will tell me which index in the listview is currently active, noting to do with what I select that could be at another index it's just what's being processed by the program at the time in some task.
Create a function that will change the images of all my listview items by looping through them. If the index variable is set to 2, I want the 3rd item in my list view set to use the 2nd image in my imagelist. The rest of the items in my listview need to be set to the first image in the imagelist.
I want to be able to isolate an area of my desktop (similar to a screen capture snip) and evaluate if it is changing. In this particalr case it is an appliacation I have (not mine) that flashes an icon upon completion
What I want to do is make a small app that will detect change when I am away and perhaps perform a specific action (the action is not relevant really - i can take care of that) Again,this is NOT hugely important, but if someone has an idea or has seen an app that does this, it would be useful for me...
I put this in the VB.NET forum because I write 75% of my code in VB.... so I chose this instead of a general area !!
Does anybody know how can we change color of Panel's Scrollbar in vb 2010?
View 4 Repliesi need to detect change in multiple control, and fire a sub procedure when any of the mention control value changes in a form.
example of the controls include
checkbox
textbox
NumericUpDown
the problem here is that i have upto 50 controls in all on the form, how do i do this?
[URL]
I've written the following code. It works fine for creating, deleting and renaming files. However when I set a file to read only, or modify the file (i.e open it in notepad and change the contents) nothing happens (it doesn't hit the change breakpoint)
I have the following
VB.NET
Private fsw As FileSystemWatcher
Public Sub WatchFiles(ByVal tblMappings As DataSet)
[code]....
I've been attempting to determine if a notebook's lid has been closed when the power setting is set to "Do Nothing."I was able to get this to work by trapping the WM_POWERBROADCAST message, but it would only work when the computer when to sleep. I've tested this on many different notebooks and the results vary. Even when changing the power settings correctly, the results were fairly inconsistent.So I posted this question in General Developer and penegate offered a possible solution.[code] I'm thinking that maybe the message I'm trapping isn't correct, but I'm not 100% sure. When I Google that message, nothing comes up. Two links appear. The one on VBF and some German site. Nothing's on MSDN.
View 1 RepliesI'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"?
View 6 RepliesI am currently working on a VB.Net program where there are two parallel multiline text boxes like this.
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I would like that when one text box is scrolled, the other is scrolled as well. I was wondering if there was a Scroll event that could trigger the change the position of the scroll bar of the two text boxes.
Here's my working
For i = 1 To 32
Dim objLvItem As New ListViewItem(sumAward(i))
objLvItem.SubItems.Add(CStr(intWorked(i)) & " / " & intConfirmed(i))
lvSummary.Items.Add(objLvItem)
Next
When intWorked(i) and intConfirmed(i) are both = 50, I'd like to change the font to a bold red, otherwise leave it as is (not bold, black). How do I do this?
In one of my other posts I asked how would I update more than 1 item in a listview, I have been still figuring that out when It occured to me that I could use code along the lines of this
Dim a As Integer = 0
Dim days As String
Do Until a = ListView1.Items.Count
[code].....
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.
How would I change the text in the last column in the listview. I was thinking of looping around the lsitview but that would just change ever item. Anyways this is what I have.[code]
View 5 RepliesIm trying to change specific lines of text in a listview at certain times of the day. Heres what im using atm , but im not sure how to change the text in the listview.
If Now.Month = 2 And Now.Day > 6 Then
ListView1.Items(0) = ("My text here !!")
End If
how i can change the native scrollbar style in my application to my custom style. I can adopt a custom scrollbar to attain this purpose but this will not serve my purpose because i want this attribute in entire application. Like it the text in textbox gets longer than its bounds than the scrollbar appers are my custom bar not the formal ones
View 12 RepliesWhat i need is when i click a button it will msgbox the position of the vscrollbar.
View 4 RepliesI am making use of a Label in a POPUP window. The POPUP works fine, but i would love to have a Vertical Scrollbar on my Label. I tried to use a Texbox instead, but the problem is that my text ends up in the wrong places. I set the Textbox to Multiline.
I am attaching an image to show the difference between the two.
1. Why is the Textbox doing this?
2. How can a get a scrollbar on a Lable?
I have a backgroundworker that populates a dataset. My datagridview is bound to the dataset, and the datagridview refreshes once the bgworker is completed. Even after a refresh, the vertical scrollbar is missing, and clicking anywhere on the dgv does nothing. If I stretch the rightmost column to the right, the scrollbar appears and everything operates correctly.
View 5 Replies