Visual Basic

text box not filled in until you click on the tab page

5-May-12 4:49

I don't think the admins and moderators would like that too much, that is spam.

Simple Thanks and Regards,
Brandon T. H.

Been programming in Visual Basic for 4 years this point forward, and is very good at it (I can even create programs completely on code, without dragging those items from the toolbox). Programming C++ for 1 year so far and the same with C#.

Many of life's failures are people who did not realize how close they were to success when they gave up. - Thomas Edison

alejx4-May-12 18:11

alejx

4-May-12 18:11

Hello !
in vb.net 2010 , i have a tabcontrol with 3 tabs , on each of them i have some bound textboxes. The textboxes are bound when the form is open.
The problem is that if i try to use a value of these textbox , but i haven't click on tabs , the value is empty.if i click on the tabs on time , everything is ok.

what can i do?

thank you.

Re: text box not filled in until you click on the tab page

Eddy Vluggen6-May-12 6:03

List of "DO NOT TOUCH" Processes

6-May-12 6:03

Move the code that fills the textboxes to the constructor of the form. There's probably an OnShow, OnActivate or an OnClick that does the databinding. Can you paste the code here?

Bastard Programmer from Hell Suspicious | :suss:

Brandon-X120004-May-12 13:00

4-May-12 13:00

Hello people,

I'm making a software which will only allow a set of pre-defined programs I list, when it detects a "no no" process it terminates it. I made a text file that the program loads and tells it which processes which not to terminate and/or suspend, currently the list I have for that is (see below)

System
Interrupts
smss

Whenever a user wants to save his or her new settings, a form pops-up with UAC (user-account control) -like behavior, it suspends all processes except critical ones (the list above), it does this just in case the computer has been hacked or been unauthorized remote control (yeah I'm pretty serious about it) but whenever I tend to do this, it crashes the system. What would I like to know is which processes that should not be terminated or suspended or NOT BE TOUCHED all together, in order for the computer to not crash, so that the user doesn't have to force restart the computer, by unplugging the cord or holding the power-button for a few seconds.

Dave Kreskowiak4-May-12 13:53

Dave Kreskowiak

4-May-12 13:53

Cute. You're going to have to investigate that yourself. The problem you have is that not every Windows installation is the same. Certain installation options will vary your list depending on whats installed.

Frankly, I think this is a waste of time as suspending process, even non-system ones, can cause problems. There's just no way you're going to be able to tell which process can and cannot be suspended.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Brandon-X1200018-May-12 7:12

18-May-12 7:12

(1.) Would you suggest just disconnecting the internet using the shell command:

Shell ("ipconfig /release", vbHide)

(2.) or disabling all network and I.p. devices.

(3.) Check the process really deep to make sure it's not connected to anything important, then if it's not do whatever I please to it. But if it is, freeze the non-important parts of the program.

Then re-enable anything that has been mess with (see above).

Dave Kreskowiak18-May-12 8:32

Dave Kreskowiak

18-May-12 8:32

1 and 2 do nothing but stop all TCP/IP traffic on the network interfaces. They have nothing to do with stopping process or OK'ing a process to launch.

Brandon T. H. wrote:
(3.) Check the process really deep to make sure it's not connected to anything
important

First, how do you define "anything important"?? Then, how do you think you're going to implement this "check"??

Brandon T. H. wrote:
freeze the non-important parts of the program.

You've already been told: You're not going to "freeze" anything. Attempting to do so can have unforseen consequences in the system.

Windows already implements the goal of your application in Group Policy.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Luc Pattyn4-May-12 16:05

Luc Pattyn

4-May-12 16:05

That is not practical, the list of typical processes is a moving target. It differs from one Windows version to the next, from one PC to the next, and from one moment to the next, as Windows, your AntiVirus SW, and a lot of applications get updated any way their vendor sees fit. Forget it.

What you might do is run Windows in kiosk mode (Google!), and write one app that offers the user exactly those operations you want available, no more, no less; it would launch allowed processes, the user would never launch anything through Windows, only through your one app (which may or may not require a lot of Windows Explorer functionality). No guarantees, as I've never done that (kiosk mode, that is).

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Richard MacCutchan4-May-12 23:14

Richard MacCutchan

4-May-12 23:14

The best advice is "do not do this". Unless you have a very clear understanding of the Windows operating system internals this will cause you nothing but pain; followed by a lot of anger from your customers.

Binding 100,000 items to a list box can be just silly regardless of what pattern you are following. Jeremy Likness

I need a countdown timer that works in a VB ASP.net MVC3 app

Philippe Mori5-May-12 1:37

Philippe Mori

5-May-12 1:37

You should never suspend a process you don't know its purpose. By the way, if you suspend a process that own a resource, then other process won't have access to it so you can create deadlock particularly if you try to suspend a lot of processes and some process will have problems like timeout.

It is impossible to know what process are critical as it vary in time. Say you are printing, then if you suspend related process chances are that you will scrap the output. And it might get worst if a program is saving data to a file.

Philippe Mori

Member 84427504-May-12 3:32

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 3:32

I am working on an MVC3 web application using VB, and need to have a countdown that updates itself on the page.
would highly appreciate any assistance for this.

Eddy Vluggen4-May-12 6:04

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 6:04

Assistance with "what" exactly? Creating a countdown or displaying it? What have you tried?

I'd imagine that a simple JavaScript might do the trick. Does it need to do anything else when done with counting?

Bastard Programmer from Hell Suspicious | :suss:

Member 84427504-May-12 6:15

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 6:15

I tried using javascript countdown but it does not work in my environment Frown | :(

yes it needs to inform the page when the countdown is over.
this is part of a timed quiz I am working on, and when the time is finished, it should provide feedback to the server part so that editing is stopped.

Eddy Vluggen4-May-12 7:41

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 7:41

Member 8442750 wrote:
I tried using javascript countdown but it does not work in my environment

That's where these things are usually done. What's wrong with the environment?

Does it allow VBScript? Seems that you'd want to do the counting on the client Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

Member 84427504-May-12 16:35

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 16:35

my environment is MVC RAZOR, and javascript compatibility is quite limited.

Eddy Vluggen4-May-12 22:49

Re: I need a countdown timer that works in a VB ASP.net MVC3 app

4-May-12 22:49

What does "quite limited" mean? Can or can't you execute JavaScript on the browser?

Bastard Programmer from Hell Suspicious | :suss:

Member 84427504-May-12 23:42

Visual Basic 2010 : Creating a list and searching it efficiently using a binary file

4-May-12 23:42

it depends on the libraries used: some are compliant and some are not, thus finding one that works is close to impossible.

Member 89233203-May-12 9:20

Member 8923320

3-May-12 9:20

Hello,

I want to make an application which writes and reads the records from a binary file and to search the records according to various parameter of each record from the file efficiently. How could I do this job using VB 2010?

Re: Visual Basic 2010 : Creating a list and searching it efficiently using a binary file

Eddy Vluggen3-May-12 23:58

[Solved] Run Application in 64-bit mode

3-May-12 23:58

Binary files to store and retrieve data consistently and efficiently are called "databases". What you are suggesting is writing your own database, which is a cool excercise. If you don't have the time to learn how a database works internally, then you'd best use an existing database-application. Sqlite and SqlCE would use local (binary) files that you can query easily.

Bastard Programmer from Hell Suspicious | :suss:

Brandon-X120002-May-12 13:43