Controlling The TabControl?
Nov 4, 2009
I was working with TabControl on a form.I wish to restrict the selection of the tabs on the form...For example, The user will start with the 0 index Tab selected by default.As he selects an option from that tab pane n confirms his selection, The next tab gets selected. I could develop a code for this like this tabcontrol1.selectedindex = 1 'Or 2 or 3 according to the need But Now I find that at runtime I can switch back to some other previous tabs or some forward tabs.... Which I do not want. I simply want the tabs to be activate in a flow...
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Nov 5, 2010
Question: I want to control cmd.exe from winforms. I DO NOT mean every command in a single process, with startupinfo, and then stop. I mean for example start the (My) SQL or GDB command prompt, send command, receive answer, send next command, receive next answer, stop SQL command prompt exit process. Basically I want to write a GUI on top of any console application.
[Code]...
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Jan 3, 2010
Ok, so I've been doing some looking around lately, trying to figure out how I can get maximum control over a download. So I can control things like:Download speedWhere to start the transaction(Byte Offset, like in a Stream?)Where to end the transaction (Byte Offset, like in a Stream?)
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Mar 9, 2010
if i have two media players in form1 and form2 respectively....how can i control the media player in form2 with media player in form1....so that if i pause media player in form1...the media player in form2 should get passed and if i scrub the seek bar in player1 the seek bar in player in form2 should move along with it...how can i do that.......means how to play single video in both players at once...
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Jan 23, 2009
I want to have a min and a max functionality to my app. When the user clicks the minimize button I want the form to go to taskbar which is easily done.
However the user clicks on the maximize button i want the form to go to a specific size (470,999) to be exact.
Private Sub app_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize
If Me.WindowState = FormWindowState.Maximized Then
[Code]....
but it maximizes to the screen size. how to control the maximize screen button? I don't want to change the formborder style setting from sizeable because I like the way it looks like this. I just want to get the min max buttons to go to sizes that I want them to go to.
another thing is there a way to save the size of the app that the user has it set to before they send it to taskbar then when the user brings it off the taskbar is there a way to bring it back to that size?
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Jun 12, 2010
my program launches a 3rd party program with a few switches to update itself.Once these updates are complete I need to manually click save from the applications menu. This can be done via the keyboard (Alt Gr + M then Alt Gr + S)
The application will take several seconds to load at which point the application will open maximised and the save option will be enabled.
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Dec 16, 2010
if i already have the vb app. open and i double click it again, is there a way i can control the one that is already open? for instance... could i resize the app. already open?
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Aug 28, 2009
I am using Visual Basic Express Edition 2008 and Office 2007
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May 14, 2010
I thought this would be easy, and I'm sure it is... but I'm not getting the response I want.
Here's the code..
[Code]...
What I'm trying to do is load a URL and grab the text from it.The text on the file I'm using is simply a 1, that's all. However, when the messagebox shows, it's empty. I've tried using google.com as the URL and got the same response, so that means it's somewhere in my code here.
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Aug 15, 2009
I am currently working on making a macro in visual basic that will control an external application. I need to know how I can click the menu options in this program. Here is the code I have so far, which makes the application window active.[code]
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Jun 21, 2010
i have an external board controlling various things on the board is a button which i would like when pressed activates code within a button on my vb form i have tried button1.select but that only well selects the button on my form rather than activate the code this code is in a timer which scans all 5 pushbuttons on my hardware
[ If ReadDigitalChannel(2) = True Then
Button1.Select()
End If ]
this is the code that the button on my form runs
[ If table1 = False Then
Button1.Text = "Off"
table1 = True
d1 = TimeOfDay
[code]....
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Apr 30, 2011
i have created 2 app one as server and one as clinet i need to be able controling the clinet from server ex: 2 media player clinet/server i must be able to stop,play,mute song from server i will put the code server :
[Code]...
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Apr 1, 2011
I feel like this is simply but I can get a straight answer anywhere. I basically have a database hooked up to my program and what I'm wanting to do is have the database query "thedate" and only display the rows that much that selection.
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Nov 30, 2011
When I use My.Computer.Network.DownloadFile this will sometimes start downloading two copies of the file simultaneously. I wonder if there is a code to check whether there are more than one file being download at a moment, and if there is a code to cancel some of the downloads.
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Oct 12, 2010
A requirement my thesis panelists ask of me is that I should be able to control the text input in a textbox. For example, in a textbox that's for inputting student numbers, it should only accept numbers and the dash character (-
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Apr 23, 2006
I know things have changed in VB2005.net and i have Express and i want to controll the serial port. I have a program from VB6 that i understand and i tried to convert it but i get alot of errors and i have know idead what they mean. As you can tell i haven't been programming very long.
If someone can point me in the right direction for programming the serial port in VB2005 .net i would appreciate it or tell me what differences there may be.
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Mar 20, 2009
[code]...
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Nov 30, 2011
If I write many subs and functions in my code, the tools on the interface will stop responding to some of the subs and functions. What can I do about that?
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May 25, 2011
With many of the programs that I use, I have noticed that the file dialog boxes automatically enter a new folder (if I create a folder thru the dialog box). But my OpenFileDialog boxes don't do that in my programs.When I open the OpenFileDialog and press the New Folder button, the box stays in the current directory and I am forced to click into the new folder. I have researched the OpernFileDialog and I don't understand how to change this behavior. I want to eliminate this extra click to enter the new folder.
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Aug 3, 2011
I have 3 msgboxes in my program which should appear sequentially. However, sometimes they appear sequentially and at other times they appear randomly.
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Mar 15, 2011
Are there any books written with the focus on how to control MS Office (Excel, Word, Powerpoint) through VB.net applications? I only have checked the book Professional Excel Development that shows a little bit on automating Excel from VB.net. I would need a much more comprehensive book (or links to web learning pages) on the issue.
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May 13, 2011
I have no difficulty creating and operating a regular notifyicon... But I have an issue - more with method than with the code itself...
Here is what I am doing - I have a notifyicon that changes colour based on the status of a service - this is not an issue...
However, I want the icon to be able to appear via a startup program itself instead of from inside the service (obviously if the service is STOPPED the icon will not be visible making it difficult to start)
The service also changes the icon colour when it is performing a specific timed task (the purpose of the service) - I may also want to force the service to perform the task from yet another application outside the preset interval....but that is a seperate issue at this time...
the best way to have a notifyicon that can control a service(easy) while being able to be controlled BY the same service.(the issue)
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Mar 2, 2010
i have the following code....
For Each dgvRow In bout_grid.Rows
vfile = dgvRow.Cells("FileName").Value
video.FileName = "D:ee" + vfile
[Code].....
but it plays only one video and than stops but i want that it should play every video in datagridview i.e bout_grid....i have tried
System.Threading.Thread.Sleep = vduration
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Jan 29, 2011
I'm trying to create a program that will let the user input any number in the first input box then a second input box will pop out asking the user for the time interval of that job. If the time interval is lesser it will come first to listbox3. The loop of how many times the user will ask depends on the inputted number of the user in textbox1
Example input and output.
3 loops.
Enter any number for job 1: 2
Enter time arrival for job 1: 8
Enter any number for job 2: 3
Enter time arrival for job 2: 4
Enter any number for job 3: 1
Enter time arrival for job 3: 6
Listbox1:
2
3
1
Listbox2:
8
4
6
Listbox3:
3
1
2
As you can see Listbox1 orders the number base on the first number that the user inputted in the first inputbox. Listbox2 orders the number base on the first number that the user inputted in the second inputbox. Listbox3 orders the number base on the time interval that the user inputted in 2nd inputbox, the lowest number must be the first in Listbox3. How can I use array to order the numbers?
Private Sub StartButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartButton.Click
Dim finish As Integer = TextBox1.Text
Dim A As Integer
[Code] ....
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Apr 6, 2009
I was wondering if there is some type of code that could control mutiple textboxes in multiple Groupboxes, basically what I want to do is be able to trigger all the textboxes in each of the groupboxes to become non visible based off of a choice in a combobox...here is what I have so far but i'm still way off
Private Sub Combo1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs Handles Combo1.SelectedIndexChanged.
[code].....
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Dec 27, 2011
In a form, I have 10 Slider control (I am using dotNetBar) and I want to reset all of their values to 0 but I am getting into a snag when I send the control the command. here is my code:
Dim ctrl As Control
dim temp as string
For Each ctrl In Me.Controls
[Code]....
while .name statement works, the .value gives me an error. and it isn't recognized as one of the possible properties in the pull down list after typing the "."
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Mar 10, 2011
I have built some simple software using vb2008 and excel to automate the process of ordering material and keeping track of work in progress at my business...Once the product is complete, it moves into a stock room and waits for invoicing.I have a dedicated accounting package that is far more advanced than what I can program...I want to know if there is a way to control this package as if a user was moving around the screen and clicking and inputing info?Or another means of control?
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Jun 21, 2010
I am having a tough time in vb.net to make the scrollbars to work of the contents of a panel.... here is my code
Private Sub HScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles HScrollBar1.Scroll
Panel122.Left = HScrollBar1.Value
now, i want to change .Left to .Right, but it won't let me?
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Apr 11, 2011
I am currently working on some software for a taxi company, and we have been asked to create a webbrowser (only simple) for the users which we allow to use it, to view traffic updates from a website that we already know about.
But...
We dont want them to be able to navigate away from this site via links to google adverts Etc...
Basically we don't want them to be able to surf the net at all, only be able to work!
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Mar 8, 2010
I am trying to overcome a problem I am having with remote desktop.Basically I have 2 machines running in different locations. I use remote desktop to access one of them (the "Remote Machine") from the other.("My PC")The "Remote Machine" is performing automated tasks that require the screen to be active, not the user login screen.
When I do so the Remote Machine logs off and presents the normal windows login screen.When I am finished reviewing the remote machine I log off and then I need to log back into the "remote" machine. It has no monitior but I can log in by pressing the enter key which sends a keypress to log into the user account( there is only one). In fact I do this the other way around. I press the enter key on the "Remote Machine" and this logs the user back in - terminating the remote session on "MyPC".
The problem is I have to physically go to the Remote Machine to press this enter key.This is a hassle - One solution is to remotely re-boot the remote pc but the lead time involved is too great.I am unable to fix this problem by tweaking setting or registry hacks so I guess the solution must be to cause the remote user to log back in programatically.I am an experienced VB user but I have never worked outside the windows environment. Ideally I would like to programmtically send a keystroke "{enter}" to the login screen but this doesn't work.
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