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Say suppose I have developed a small application by vb.net, which will insert new record and modify existing record and delete existing record. At the time of inserting new record then primary key, index, unique key, check key can violate for reason like duplicate record, like null value. So how could I capture those errors separately and show proper message for different type of errors to user. At the time of deletion relation can violate say suppose user are trying to delete record from parent table where references are in the child table, at that time foreign key will violate and I want to capture that and show proper message to user.
Please solve my problem giving me the proper exception handling code with comment implement by vb.net.
tbhattacharjee
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Since SQLServer is generating the errors, your SQL procedures can return codes to your VB.NET code so you can determine what to do with the errors there.
But, if your code is written properly, your SQL database is setup and the stored procedures that do the actual work are written properly, you should never have to deal with foreign key violations like what your talking about. The only way a user can delete a record from a parent table and violate the child relations is if your code lets them do it in the first place.
RageInTheMachine9532
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After developing a big windows application by vb.net how could I be able to test the load.
So I want to know is there any tool that comes with Visual Studio.Net by which I can test the load of windows and web application, if so then please tell the step-by-step detail to test the load.
tbhattacharjee
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I always rely on the old task manager. If you watch closely you'll be able to see how much you are muncing (It works for me in C++,VB and C#) I managed to find memory leaks and so. Other of that I dont know any tools to do the job. I hope this helps.
The warlord
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After developing a big windows application by vb.net how could I be able to test the load.
So I want to know is there any tool that comes with Visual Studio.Net by which I can test the load of windows and web application, if so then please tell the step-by-step detail to test the load.
tbhattacharjee
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What it sounds like your looking for is this:
Application Center Test is designed to stress test Web servers and analyze performance and scalability problems with Web applications, including Active Server Pages (ASP) and the components they use.
Application Center Test simulates a large group of users by opening multiple connections to the server and rapidly sending HTTP requests.
It comes with Visual Studio.NET, but I don't know which editions...
RageInTheMachine9532
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hi can anyone tell how do i change a RTF text into char array or how do i get it seperated one word by one??
eg:this is a text
to
t
h
i
s
a
t
e
x
t
tks a lot..
Have a Super Blessed Day!
-------------------------
For God has not given us a spirit of fear, but of power and of love and of a sound mind.
2 Timothy 1:7
"For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life."
John 3:16
"Therefore you also be ready, for the Son of Man is coming at an hour you do not expet."
Luke 12:40
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every boy,any help will be appreciated.
now i want to write dial program and complete connection from modem to mobile.Only i hope that connect mobile and i want to
justify that the communication is straightway.
describe:
own device: a modem,normal pc
use visual basic develop program
my program is :
it use the windows self dll file "RasApi32.DLL",this dll file will complete connection modem operation ,program will work
by that dll file.now the program can work ,but it is the best solution.The mordem or mobile answer have already been a huge
every boy,any help will be appreciated.
problem.Where mobile receive the signal,modem can not identify the mobile's turn-on status.i see the RasApi32's error
code,but i can not find correlative error code.
other: i use the RasApi32.dll to connect mobile, can I complete my program?Can I solve my problem?
compeers,can you help me?if you can send me some code about connect mobile by modem,you will be appreciated.
can you understand my meaning?????????????
thanks for reading this,any help will be appreciated.!
my email is jjh_115@hotmail.com
or jjh_115@eyou.com
You are the best!Me too!
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Joe Billy wrote:
by that dll file.now the program can work ,but it is the best solution.The mordem or mobile answer have already been a huge
every boy,any help will be appreciated.
problem.Where mobile receive the signal,modem can not identify the mobile's turn-on status.i see the RasApi32's error
code,but i can not find correlative error code.
other: i use the RasApi32.dll to connect mobile, can I complete my program?Can I solve my problem?
compeers,can you help me?if you can send me some code about connect mobile by modem,you will be appreciated.
can you understand my meaning?????????????
Uhhhh....No.
RageInTheMachine9532
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In VB.Net, when I use new mothod to create a new control, for example Combo Box, how can I add a new event into the control?
Thanks!
xyz
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AddHandler ComboBox1.SelectedIndexChanged, AddressOf MethodName
Hope that helps 
Sig Under Construction. Visit back later.
Support Bone
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Hi
Does anyone know if its possible to interface OCR and Text to voice software using VB.
I'd like to use availabe OCR and Text to voice software without having to open and start them separately
e.g. scan text using OCR then text is read back automatically using text to voice software.
I'd like to achieve this in one operation, without having to constantly be clicking icons on screen etc.
Is this possible??!!! 
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Depends on the software your using and whether or not these pieces have an automation or COM interface, or if you can get a usuable output from the OCR software and get the speech software to use it, ...
I'll say it IS possible. How your going to be able to this is an entirely dependent on the OCR and Speech software you are using and what you want to scan and read.
RageInTheMachine9532
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Hopefully will be scanning only basic text documents.
Could you recommend any OCR or Text to voice software..free VB OCR/Speech software if you know of any..my budjet really wont stretch to commercially available software!!!
Will any of this be possible without access to the source code....
Thanks
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"Hopefully"? 'Hopefully' doesn't sound like a good start. Keep in mind that OCR software is FAR from perfect and reading filled in forms is a huge pain ... and handwriting, forget it!
There is open source OCR on SourceForge.net. I'm not familiar with the specifics of any of the projects, but there might be something useful there.
As for Speech, Microsoft has a Speech SDK available here[^]
RageInTheMachine9532
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hi...
can someone pls tell me if there is a way where i can read the text of a rich text field which is written each word ina different color...
the input text in the rtf is something like "this is the text"..where :
thi->red
s is->green
the t->blue
ext->yellow
is there anywasy i can read it and get all the colors and what letter are of what color???
tks a lot...
Have a Super Blessed Day!
-------------------------
For God has not given us a spirit of fear, but of power and of love and of a sound mind.
2 Timothy 1:7
"For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life."
John 3:16
"Therefore you also be ready, for the Son of Man is coming at an hour you do not expet."
Luke 12:40
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Hello! I just picked up the interest to programme in Visual basic. What developing tool or compiler, books can u advise?
Thanx.
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use Microsoft Visual basic..its the best...
Have a Super Blessed Day!
-------------------------
For God has not given us a spirit of fear, but of power and of love and of a sound mind.
2 Timothy 1:7
"For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life."
John 3:16
"Therefore you also be ready, for the Son of Man is coming at an hour you do not expet."
Luke 12:40
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Mastering VB6 (published by Sybex) is a great one,,
howeever,it's a bit hard for a completer beginner
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i agree...mastering VB is a greate book...even i use it...
Have a Super Blessed Day!
-------------------------
For God has not given us a spirit of fear, but of power and of love and of a sound mind.
2 Timothy 1:7
"For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life."
John 3:16
"Therefore you also be ready, for the Son of Man is coming at an hour you do not expet."
Luke 12:40
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Is it possible to create array of winsock ports in a VB DLL?
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What do you mean by an "array of winsock ports"? What are they going to be used for? And which version of VB? And are you going to be using this DLL exclusively in another VB app or in a C/C++ app?
RageInTheMachine9532
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Hi
I am pretty new to this, so I hope the question is not too dumb. I am trying to get a tab control to look halfway decent on a form with a color background. It seems I can set the backcolor on individual tabs, but I always end up with a grey border and tabs. Is there any way around this?
Thanks
Trevor Doble
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I am writing a program using the tab control. For no reason it keeps re-arranging the order of the tabs, which has to be fixed by manually going into the collection and re-setting the order. Well now it decided to make my controls on a couple of the tabs dissappear? The controls still exist as far as vb is concerned because the defenitions and properties are still accessible, but they are not visible. I have tried bring to front/back, deleting things to see if they are behind, restarted vb, rebooted, moved things, and they are no where to be found????
any one had this problem, cuz it sucks.......
thanks
Ryan
hooleyrk@comcast.net 
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I'm trying to make a splash screen where the program opens with frmOpen, and the form stays up for 5 seconds, and then frmMain should open.
I know, it's probably silly, but I'm a total newbie in VB
Thanks,
kobi
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