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If you didn't retrieve all the data you wanted in the first fetch, you need to change the first fetch to include the primary key in the table you bound the DGV to. When the use clicks on a row, you grab the PK value from the DataRow object and use that value in a second request to get the columns you need specifying the PK in the WHERE clause of the SQL SELECT.
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Thankyou Dave. I think now where getting somewhere. ill let you know how i go later on . thanks champ.
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Hi
I am trying to add *.dll files as a reference in VB.NET 2005 but am recieveing the message as 'A reference (Path) could not be added please make sure that the file is accessible and that it is a valid assembly or COM components'.
Help me to proceed......
Thanks,
Nanda
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hi,
if you want to add reference to project:
go in solution explorer and you will find Reference and click right on Reference and choose Add Reference and after that you can choose your reference
hope it helped.
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Hi,
am recieving the error message while adding the reference(i can't able to add that dll), please help in this
Error message:
'A reference (Path) could not be added please make sure that the file is accessible and that it is a valid assembly or COM components'.
Thanks,
Nanda
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You're getting this error message because your trying to add a reference to a .DLL that is not COM-based, just like the message says.
In order to use the functions in that .DLL, you do NOT add a reference to it. You call the functions through P/Invoke. Define the function headers in your code using the Declare statement and setting up the arguments that the function is expecting. For example, to call the Win32 Beep function found in kernel32.dll:
Declare Function Beep Lib "kernel32.dll" (ByVal frequency As Integer, ByVal duration As Integer) As Boolean
Then later in your code:
Dim r As Boolean
' Make a sound at 4000Hz, for 250 millisecond (1/4 second)
r = Beep(4000, 250)
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am new 2 vb
1. i want a value to be entered through a text box
2. store it in an array
3. input text length should be exactly ten
4. first four should be charachter next four integers last two charachters
5. how to achieve all this in vb6.0
6. please help me at de earliest
2nd question
1. i got a listbox filled with a table entry.
2. when i click it de corresponding row should be displayed in data grid
3rd question
1. if i enter a value in text box. supposing a name "devx" is given in de textbox i should retrieve all de rows that has de name as devx
tell me how 2 do from scratch coz i really dono much bout vb please help me
my tools are vb6.0 and access
with DAO connection
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daredevil_beware16 wrote: tell me how 2 do from scratch coz i really dono much bout vb please help me
First of all, txt speak just makes you look like an idiot
Second of all, we're here to help people trying to program. People who say 'I don't know anything, so tell me from scratch how to do these tasks', don't get much help.
Third, VB6 is a dead language, and a terrible one. Microsoft withdrew all support some time ago, why would you learn this intead of VB.NET ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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see Christian Graus if u know give me de answer am in need of it.. else leave it.. don come here to mock got it i relly hate it...........
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I am trying to help, seriously. Your question is just annoying, because of how you typed it. others will tell you the same, or just ignore you. We're not 12 years old here.
And, VB6 *is* a dead language. Why are you learning it ? I suspect it's a class, in which case, you really need to do your own homework.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Hey CG did you note him Name DAREDEVIL.
Ha Ha Ha !!!!!
Regards,
Satips. ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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Which country u belong to? 
I think u need to learn from the book first.Then tell us the specific problem.
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Hey Nilish, He is from United States.
Did you note his name aah? " daredevil beware "
Regards,
Satips.
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actually christian i rellay wanna study vb so only want some help dude so kindly adjust....
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Hey r u a Student or Developer?
Regards,
Satips.
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What ie your Problem?
Be Specific and ask your Question?
Did you notice the Rules and Regulations before posting the Questions in the forum?
Regards,
Satips.
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ya i saw it... i need help so only came here...
i have an access .mdb file... the thing is that i don have primary key 4 it.. DAO connection is being used....
so i select a list box point towards a field in dat table when i select in list box... what all rows i want should be displayed in a grid or as a report...
do please help me
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daredevil_beware16 wrote: i have an access .mdb file... the thing is that i don have primary key 4 it..
Ok.
daredevil_beware16 wrote: DAO connection is being used....
is it ADO? not DAO.
daredevil_beware16 wrote: what all rows i want should be displayed in a grid or as a report
Did you able to show the datas from the table in the Front End.
While connecting to DB using ADO what error it shows?
Regards,
Satips.
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actually am giving that code using data grid... i wanna select one row according to de name i select in de list
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According to your other posts you are a student wanting to learn. So why do you want us to do if for you from scratch? Most of us learned by trying and trying again. If you want to learn, look at online tutorials or buy a book.
__________________
Bob is my homeboy.
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i need a help i studied from scratch without learning any book or tutorial nor am able to afford to buy 1 thats de reason to be open
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Hi
I wonder if any kind person out there may be able to help me.
I am writing an ocx (vb6), in which it is necessary to watch for directory and file changes.
Ths is done by creating a new thread and then using ReadDirectoryChangesW and WaitForSingleObject to do the watching. This works perfectly, but when the calling .exe shuts down, I have to be able to destroy this thread, and that is where the trouble starts.
Once this new thread is started if I attempt to shut down the calling application, the ocx does not terminate. Although it is sent a WM_NCDESTROY message by the caller, VB seems to intercept this and it never arrives at the ocx's window proc. The ocx's terminate event is not called either and the caller continues to run (albeit without a window). If I use the End directive in the IDE, VB crashes, and if I run it as a compiled exe, it does not terminate.
Does anyone know if it is possible to detect that the calling app wants to shut down so that I can destroy the extra thread created by the ocx and allow a normal shut-down to take place.
Any help would be appreciated as I am horribly baffled.
Bertram
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You may use the WaitForMultipleObjects [^] function (instead of WaitForSingleObject one) to wait also for an event and then raise such event whenever you need to terminate gracefully your thread.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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Hi Pallini
Thanks for your reply. Your suggestion is certainly a far more elegent way to end the thread, but unfortunately I cannot detect when parent of the ocx is about to shut down, as for some reason it does not call the terminate event
Bertram
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