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Does anyone know how to use an if statement in VB.Net to catch if a user enters a character instead of a number?
The user should only be entering numbers in a textbox and if they enter a letter, I want to catch it.
Thanks in advance
Beginner in VB.Net
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Try the keypress event from the text box as below:
Private Sub txtTitleLevel_KeyPress(ByVal sender As Object, _
ByVal e As System.Windows.Forms.KeyPressEventArgs) _
Handles txtTitleLevel.KeyPress
If (e.KeyChar >= "0" And e.KeyChar <= "9") Or _
e.KeyChar = Chr(8) Then
' Chr(8) mean backspace.
e.Handled = False ' Allow user to input numeric value.
Else
e.Handled = True ' Do not allow user to type character.
End If
End Sub
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Thanks a million
Beginner in VB.Net
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Has anyone else experienced problems with this crashing the VB6 IDE on exit?
In a couple of apps recently, we have been experiencing this intermittently...when compiled, an exception of some sort is thrown...Micro$oft site offers no advice, and Google didn't help much either....
Any ideas anyone?
"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox
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Did you install any application before your computer have a problem. When VB6 IDE crash, did it display any error message. Let use know then post it to this forum. Some error are available on the internet to check it out. Try to update windows, office and vb service pack from the internet. Use windows update and office update to scan for an update or service pack.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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I am trying to obtain the User description or any other property from the active directory in vb script, I have tried countless methods using LDAP but no luck.
It would also be helpful to know if there is a possible way to obtain the organisational unit that a specific user (logged on) belongs to.
Anyone's help will be greatly appreciated, Thanks
James
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Try to check the information from Microsoft Scripting Center[^].
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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I want to transfer data from one database to another through vb.net. My problem is both the databases are on seprate sql server. plz help me for this problem
Thanks
Prakash
pkc
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Just think about this idea:
1. Make sure that you vb.net could connect to both database.
2. If it could connect to both database then try to read (using loop) one bye one of record from the first database and save it (using loop) one by one to the second database.
Hope it is working
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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I am using Insert Into Select command in that I am passing like Insert into CustomerTrans Select * from dbo.CustomerTrack.CustomerTrack. If i am executing this command on other sql server in that there is no database called CustomreTrack. If I am execuing this command on same sql server then it's ok.
pkc
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i am developing a user control in VB .Net , i want to get a number of String Input (ie thru Propery window) or At Designer Window in .NET IDE. What Should i do?
Arpit
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I am Creating a TabPan UserControl (Component) in VB .NET, how should i design it so that TabPage in my control can get the Controls at "Design Time", ie thru .Net Ide's Designer Window.
Arpit
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Hai, anyone, I m now working on backup procedure for networking in VB 6.0 or VB.net, currently, hv 6 pc in the network, one PC is use as backup pc do the backup routine, such as copy backup folder from the remain PC and to backup PC folder, then delete particular folder from the remain PC.. so anyone expert in tis, thanks n i will appreciate it a lot
KK Goh
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All your doing is copying files. What's the real question here?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Not just copying, but need a networking programming in VB to cater the backup procedure, a program to copying necessary folder to backup server dir...
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kengharng wrote:
networking programming in VB to cater the backup procedure
Great! But, what does this mean?
kengharng wrote:
a program to copying necessary folder to backup server dir
This is just copying files/folders...
What more, to the specifications of this app, are you not telling us? You're going to have to spell this out with much more detail. What are the steps involved in the process you're envisioning?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I just want to click custom add in buttons by program.
I have 3 buttons in custom addin toolbar for ms word which is
developed by VB. I want to know the way to click one of buttons
in my addin toolbar by program.
VB6 Office2000
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I have looked through various tutorials and figured out how to get one of them working.. made a little sample with the following setup:
1) Server (console app, with console.readline() to keep the listener open)
2) Client (console app that calls the remote code)
3) Class library which is the remote vb.net code.
What I don't understand is how am I going to use Remoting to send a signal from my Windows Service to the system tray icon..(Windows form) ? When the Service becomes active I want it to send a message to the desktop (System Tray) so that the System Tray can change its icon into an 'active' mode, or I will have alittle msn like window pop up.
What I know: put the server code in the system tray project, client code in the Service.
What I need to know: When the Client calls the Remote Code, how can I get this code (which is just a class library) to pop up a window or do something as mentioned above? I couldn't get the remote code to work any other way than just a class library, is there a way to have my entire form the remote code? (I tried that but then couldn't reference it in the server because i can only reference .dll , and the .exe wasn't a proper format I guess).
Any help would be appreciated. Thanks.
This is the code:
Class library ###########################################
Public Class SampleRemoter : Inherits MarshalByRefObject
Public Function getUser() As String
Return Environment.MachineName
End Function
End Class
###################################################
Server###############################################
Class RemotingServer
Shared Sub Main(ByVal args() As String)
Console.WriteLine("Registering our remote object...")
RemotingConfiguration.RegisterWellKnownServiceType(GetType(SampleRemoter), "SampleRemoter", WellKnownObjectMode.SingleCall)
Console.WriteLine("Create and register a channel...")
Dim ch As New TcpServerChannel(8080)
ChannelServices.RegisterChannel(ch)
Console.Read()
End Sub
End Class
###################################################
Client ###############################################
Shared Sub Main(ByVal args() As String)
Try
Console.WriteLine("Registering Channel...")
Dim ch As New TcpClientChannel
ChannelServices.RegisterChannel(ch)
Console.WriteLine("Registering remote object in local domain...")
RemotingConfiguration.RegisterWellKnownClientType(GetType(SampleRemoter), "tcp://localhost:8080/SampleRemoter")
Console.WriteLine(" Create remote object and execute method")
Dim sr As New SampleRemoter
Dim username As String = sr.getUser()
Console.WriteLine("Machine name of remote machine = " & username)
Catch ex As Exception
Console.WriteLine(ex.ToString())
Finally
Console.Read()
End Try
###################################################
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I have recently begun working in a job with VB6. I am used to embedded C/C++, so there is a large learning curve for me.
What I am trying to do is make a class or module that can traverse all the controls on a form. I want a generic way to choose any given control within my code. I looked at the form methods, but cannont find anything that will return a collection of controls. The "Form.Controls" property looked promising, but would not return a collection of controls. It returns an object representing the controls. Is there any way to use this, or anything else in VB6 that would allow my to select controls within my code without knowing how many controls are on the form? Perhaps there is something visible through the tab order?
Thanks in advance,
Paul
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THe .Controls collection is what your looking for. It returns the collection of contorls on the form. What's the problem your having? What do you mean by "select"? What exactly are you trying to do?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I have actually managed to figure out exactly what I needed to do. I used the .Controls collection, but took it farther. I looped on the total number of controls to look at .Controls.Item(index). This allowed me to browse through every control on the form. I needed to do this because I was generically assigning data to them.
Thank you for your inteset in helping
On another note, I was concerned by the fact that the .Controls property returns an Object, not a Collection. How can I assign an object to anything? Can this only be done with a variant data type?
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I have Created a Class with multiple properties.
Public Class Item
Private _Code as String
Private _Description as String
Public Property Code as String
... Get/Set _Code etc...
End Property
Public Property Description as String
... Get/Set _Code etc...
End Property
Public Sub FetchFromDatabase(Code as String)
... Code which lookus up the record in a SQL table and stores the field data in
... _Code / _Description
End Sub
End Class
Now I have a Windows Form with 2 Textboxes.
The first is not bound and the second is bound to the description prop of myitem class.
When I enter an itemcode in the first one it executes the fetch Command but the second one is not filled with the fetched description ...
I need some help here.
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Hey,
Is there a way to locate a folder on a user's machine regardless of what operating system they are using.
I want to be able to locate the 'C:\Documents and Settings\user\Local Settings\Application Data\' folder and then copy my own folder to it when my program is installed.
Is this possible
thanks for your help
Chris
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it sure is...
check out:
environment.getfolderpath(environment.specialfolders.localapplicationdata)
hope this helps.
-jim
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Cheers Jim,
I will check this out, thanks for hte help
Chris
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