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http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformscomboboxobjectcollectionclasscleartopic.asp
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hello
That is clear for all itms in combobox or listbox that site contents,i asked clear combobox text only
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Hi,
Im populating a datagrid using threads which works fine.
Sometimes, though the datagrid gets distorted with double scrollbars. When I click on the scrollbar or maximise the window(to repaint it), I get any or both of the following:
exceptions
Two exceptions:
1. System.Runtime.InteropServices.SEHException' occurred in system.windows.forms.dll
Additional information: External component has thrown an exception.
2.An unhandled exception of type 'System.NullReferenceException' occurred in Unknown Module.
Additional information: Object reference not set to an instance of an object.
Note: I have already used the form.beginInvokeMethod which allows a datagrid to be populated using threads.This works fine. So plz give some other solution.
Any solutions?
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Well, it looks like you've already done the obvious stuff. So, without seeing your code, it's impossible to tell what's going wrong and why.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi,
Oracle Ver. 8.1.7
Client : ODP.Net ver 9.2.4
App. using VB.net
I have an application for our sales people, where our sales people prepare Client Visit Reports in MS Word (.Doc). At present they are entering the visit details into my application, now they want this report prepared in Word document also to be stored into the database and will be removed from their local drives. Anybody shld access the Report doc only thru this application.
I need to achieve the following :
1. User shld be able to upload a word file to the DB from a mapped drive.
2. Once loaded user shld be able to open the word file stored in the DB, thru the application and edit it and save it again.
Can we achieve this. I know we can do it using BLOG but not sure how to do this. Can someone pls show an example.
TIA
Harry.
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Anyone had a problem with Crystal Reports error "Cannot find KeyCodeV2.dll" when running an app that has been installed using the windows installer, on a machine different to the development machine? This VB.NET app runs fine on the development machine.
Seems that Crystal Reports is less than ideal with dotnet. Are there any better alternatives?
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i figured this one out today actually, it took me forever.
Ok you have to add a few merge modules to your deployment project, not in the filesystems just add them to the deployment project. Right click on the Deployment Project name in the solution explorer, select Add then "Merge Module..." You will find these modules in C:\Program Files\Common Files\Merge Modules
The ones you need to add should be the first 4. They are...
Crystal_DatabaseAccess_2003.msm
Crystal_DataBaseAccess_2003_enu.msm
Crystal_Managed2003.msm
Crystal_regwiz2003.msm ( this one puts the required registry keys in the client machine that causes the
Keycode error)
Next you need to right click on the Crystal_regwiz2003.msm and click properties
Look in the properties window, click the + sign beside (MergeModuleProperties), Enter the License Key
You get the license Key when you register Crystal Reports, so make sure Crystal Reports are registered. If you lost your keycode i think you can go to the website and get it emailed to you. Go to your report in your project, right click in the toolbox and click "Register/Change Address". I think you can obtain your Key that way. But thats all i can tell you. It should work because i was getting the same thing.
If you possibly know how to write an install package for a SQL/Vb.net app please let me know.
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Joey - great feedback - I appreciate the advice. I did everything you said and have got rid of the error message. I don't know how you figured it out - I couldn't see any help on this.
Now I have a different problem:
When I run the app on the new machine, and I click on the viewer to view the report, I get a crystal reports database login form with text fields "Server name", "Database name", "Login", "Password". The ServerName field has the original path and filename of the Access database I used to hold the data for the report. If I key in the new path to the Access file, it works, but I really want the user not to have to see this stuff. Is there any way to hide this screen?
I am sorry to say I do not have much experience with writing intaall packages for SQL - I am breaking new ground with this stuff right here.
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Let me get back to you on that one. Im dont know right off the top of my head but I will look at it sometime today.
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Oh yeah, what kind of database are you using?? Access??
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Yes, it is Access. Sorry for the delay.
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I have a combo box for displaying user name, retrieve the name from database. Can I set value for each item in the control?
andy(name) 4(ID)
charlie(name) 8(ID)
where do I put the value 4 and 8? Get it? I'm using VB6. Thanks.
<italic>Work hard, Work effectively.
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It's been a long time since I've been in VB6, but IIRC, you're looking for the ItemData property. Docs[^]
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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:-DSomebody help me
I would like to know what is the codes that i should write in the VB6 to read/write sms from my mobilephone via serial port...
Thank you
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There are two parts to this project...
Google results for "SMS Messaging VB6"[^], and results for "VB6 Serial Port"[^]. What commands your cell phone understands and the data that it returns only you can search for.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi! Looks I have a very simple problem, buts its killing me. I want to read data from a text file and put it to a unique variable. For example:
data in Text file looks like
10 20 50 60
20 40 60 20 80 90
I want to read so that say a=10, b=20, c=50, d=60, e=20, f=40 and so forth.
usually in fortran etc. it used to be simple: read a,b,c,d,e,f....
How should it work in vb.net
Thanks.
Amanjot
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yah! I know how many inputs are there in the file. Infact, its a formatted file i.e place for each variable is defined. for example, sequence of vaiable will be a,b,c,d in first line and e,f,g in second and h, i, j in third and so on.
Thanks.
amanjot
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Hi Amanjot;
Here is one way to do it.
' Array to hold each number in the file
Dim intArray(0) As Integer
' Line of numers read from file
Dim inputText As String
' String to hold each value from input line
Dim splitText(20) As String
' Index into integer array
Dim index As Integer = 0
' Size of integer array holding values
Dim arraySize As Integer = -1
Dim reader As StreamReader = New StreamReader("c:\temp\integerfile.txt")
Do
' Read a line of text from file
inputText = reader.ReadLine
' Parse the line of integers
splitText = inputText.Split(" ")
' Calculate the size need for new values
arraySize += splitText.Length
' Resize the array to hold new values
ReDim Preserve intArray(arraySize)
' Put each value into a unique variable
For Each numberString As String In splitText
intArray(index) = CInt(numberString)
index += 1
Next
' ChecK to see if there are any more input
Loop Until reader.Peek = -1
....
reader.Close()
I hope that this was of some help
-Fernando 
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Text file connection via Adodc. I can add new record
How do I delete Record from it.I get error if try to use
FlatFile.Recordset.Delete
Error message I get is
Microsoft ODBC Text Driver Deleting data in a linked table is not supported by this ISAM
Is There Any other way I can delete the Record?
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I've never use the Text driver for anything, but it would appear that deleting a record is not supported. You'd probably ahve to read the entire text file, then re-write it, skipping the record(s) that you want to delete.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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How can I read a file from a web site. Let's say that the file is at http://www.thecodeproject.com/file.txt.
Thanks,
Martin
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What your looking for is the HttpWebRequest[^] class.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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My pc is stand by how to wake up using visual Basic Program without moving mouse or pressing Keys.
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Considering the process is not running in Standby mode, no, you can't wake up the machine from code.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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