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!
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 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?
I'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 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?
I 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):
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.
I 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?
I 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 have just installed Visual Basic 2008 Express.Unfortunately, the built-in (offline) help is very limited. For example, such a basic function as IsNumeric() is not found.Is there a way to expand the help in this Express edition?
Well 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.
I 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.
i 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!
We need to put a firewall in between our servers and a couple of clients. To do this we need to limit the number DCOM ports available so that we know what ports to open on the firewall.The question I have is do we need to limit the number of ports on all the machines inside the firewall as well as outside. This would cause an issue as we have lots of machines which would need to be modified.If DCOM has the intelligence to negotiate on port 135 which port is available on both machines which need to communicate, we will only need to modify the 2 machines on the outside of the firewall.
Im working on 'Virtual iPod Touch' project and I'm almost done..but one thing annoying me..im using drag 'n' drop to make lock slider..1 got 1 picturebox with lock arrow and 1 black (transparent/invisible) with allowed dropping...and its all ok but I want only I can slide (move mouse) in area for sliding (see a picture, but I think all of you understand).
I was reading an interesting article here and it made an interesting point about the 'case' statement in vb.net vs the 'switch' statement in C#, which I've pasted below:The following Visual Basic Select Case statement can't be represented in C# with a single switch statement:
Dim Condition As Integer = 55 Select Case Condition Case 1, 3 To 5, 10, 12, 14, Is > 50
[code]....
I've always found the switch statement in C#, with dropthrough and consequentrequirements for a break in each case, to be a bit unwieldy. Is there any reason they haven't enhanced the switch command to allow these situations? W
EDIT AFTER CLOSE: I'm surprised this was closed, really. With the number of extension methods and helper classes I've found online for other things, I thought an enhanced 'case' would be a good chance. I somewhat hoped a luminary such as Jon Skeet may have commented on the background reasoning, rather than the individuals below who've obviously thought 'religious debate' as soon as more than one language is mentioned.
I want to create a dial which is basically a circle that I can drag around in a circular motion. Ive looked at using the code in an earlier post which allows you to drag items around a screen but I cant figure out how to confine the movement so it only allows the user to drag this circle around in a circular motion. Any coordinate altering I do just looks snappy.
I have created Installation package and installed in Admin login. When i am logging into limited user i cannot write any files which i was created as Admin user. I want to update the files from limited user account which was created from admin user.
I 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...
I know we can easily limit the number of items in a listbox to be listed. But how to limit the items that are suggested. Like for example, when i type "Co" (using AutoComplete feature ) it will automatically suggest me up to 20 - 30 items that has the word "Co" in it. But i want to limit it to 5 items only. The suggested 5 items, are the top 5 of the list.
I know we can easily limit the number of items in a listbox to be listed. But i can't figure out how to limit the items that are suggested. Like for example, when i type "Co" (using AutoComplete feature ) it will automatically suggest me up to 20 - 30 items that has the word "Co" in it. But i want to limit it to 5 items only.
How limited time for method InstWebClient.DownloadString(PageAddress)?Sometimes my apps "stop executing" in line where execute InstWebClient.DownloadString method.
I am writing an application that I want to give to a select number of customers.
What is the best solution to use so that after the trail period (1 month) the application will no longer work.
I was thinking that if they are interested in purchasing the software I will give them a license key or something, to unlock the application. However, I would like to make this unique to every computer.
I am have a very limited budget as I am working on my own. So is there any free 3rd party products that does this?
I was thinking of writing the date the application was installed in the system registry, and each time the application loads it will check if this date is over one month. However, the user could turn back the date on their computer.
Another, solution I was to have the application run some many times. For example, the user can only run 30 times. Then it will lock.
I need to hash a number (about 22 digits) and the result length must be less than 12 characters. It can be a number or a mix of characters, and must be unique. (The number entered will be unique too). For example, if the number entered is 000000000000000000001, the result should be something like 2s5As5A62s. I looked at the typical, like MD5, SHA-1, etc., but they give high length results.
My program runs under a limited account, and uses impersonation to access admin codeI also have a program in the same folder, that my program runs sometimes when it exitsBoth exe files are in the same folder in the "Program Files" folderIf I try to run the other file, I get a not found error.If I Raise the first program to admin (even though it should already have admin rights due to impersonate) it can run the second file.1. I don't want to raise to admin.2. I'm using the full path and file name to the file.3. That do i need so that dot net can find the file so that it runs.
i am creating an Alarm clock application that requires user input to deactivate the alarm. However is there away i can display the inputbox for a limited time only say ( 1min) if no user input is entered after that time then the input box is closed. [Code]
I need to know to limit the number of times a radio button can be used. Maybe the number of times the radio button has been used can be stored in an XML file, and when the user wants to reset the counter all they would have to do it delete this file. I really don't know, that's why I'm asking you. But,the program will append a string every time a button is clicked with a radio button selected, I just need to know how to, for instance only allow RadioButton2 to be used in this manner say... 15 times.
