Visual Basic

Trying To Submit Data To A Web Server Using VB.Net

27-Jul-05 8:11

from what you say looks like your barcode reader sends data in through the comport. if that's the case you can easily find solutions (and code) on this site. just search for COM (I remember an article called "COMPort made easy", but there are more) and you'll get several approaches and ideas

Member 215071527-Jul-05 6:15

Member 2150715

27-Jul-05 6:15

I wonder if any of you can help me. I have a VB.Net application that is installed and run on any Windows platform. This application has a bunch of questions that the user fills out. What I can’t figure out how to do is to submit those answers (transparent to the user) to my web server that will return a successful flag if it actually accepts the data and successfully writes it to the database.

I can successfully send all the information in a long web address string that the website interoperates, but I don’t want the user to see all that. I sort of want to do something like Symantec AntiVirus does when checking for updates…it sends and receives information all in the background while you simply see an animated form.

Any help or examples would be greatly appreciated.

Re: Trying To Submit Data To A Web Server Using VB.Net

John Kuhn27-Jul-05 17:53

John Kuhn

27-Jul-05 17:53

How about creating a web service, publishing the service on your web server, then invoking the web service from within your windows forms application? It's much simpler than creating and posting a http request and parsing the http response.

What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

Remember the State of WinForms

Anonymous27-Jul-05 6:11

Anonymous

27-Jul-05 6:11

Hi all,

I was wondering what is the best way to remember the state of a WinForm? For instance I have a multiline textbox that the user can resize. How would I approach saving the size that the user changed it to after the app is restarted?

Would storing values in a config file be appropriate or serializing certain properties be a better approach?

Any suggestions? Thanks.

Re: Remember the State of WinForms

Briga27-Jul-05 8:13

Connection with sqlServer

27-Jul-05 8:13

you may want to consider also saving it in the registry (the old way). you can quickly use the SaveSetting or take advantage of the specific registry class the .net fw offers you. yours proposal are also good (they may be both complex at first sight but there're lot of good examples on this site)

SeLoRBIS27-Jul-05 5:45

27-Jul-05 5:45

Hello!

I don't know how to connect to SqlServer when this server is not in the localmachine.
I'm using VB.Net and the server can only be joined on the internet.

My connect string looks this :

Cnx.ConnectionString = "Integrated Security=SSPI;Initial Catalog=name_of_my_base; Data Source=name_of_my_machine"

The computer where the server is running can be reached by a domaine name

Thank you for your help (and sorry for my bad english)

SeLoRBIS

toxcct27-Jul-05 6:07

toxcct

27-Jul-05 6:07

did you try directly with the IP Address of the SQL Server into the connection string ?

moreover, isn't the sql server based on a machine hidden on a sub-network (private IP) without any NAT server ?

SeLoRBIS wrote:
sorry for my bad english

no problem, as we still understand you... Poke tongue | ;-P

and welcome on CodeProject (the best programming site ever) Mr Selorbis :-> Cool | :cool:

TOXCCT >>> GEII power
[toxcct][VisualCalc]

SeLoRBIS27-Jul-05 6:25

27-Jul-05 6:25

I've tried this ! and it doesn't work !

the machine is directly connected to the internet , a DNS server resolves the IP !

SeLoRBIS

toxcct27-Jul-05 20:28

toxcct

27-Jul-05 20:28

maybe you could ask this on the SQL forum[^] if no one knows here...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

SeLoRBIS28-Jul-05 1:19

28-Jul-05 1:19

toxcct wrote:
maybe you could ask this on the SQL forum[^] if no one knows here...

Thank you Toxcct I'm going to this forum for ask my question !

SeLoRBIS

Rizwan Bashir27-Jul-05 21:50

Rizwan Bashir

27-Jul-05 21:50

Hye
Use this connection string.
"user id=sa;password=xyz;initial catalog=Mydata;data source=Server_IP_Address;Connect Timeout=5"

I hope this will work. Second thing go to command prompt and confirm the server availability by ping command. once you started pinging the server you will get connected.

Regards
Rizwan Bashir

SeLoRBIS27-Jul-05 22:27

27-Jul-05 22:27

That's what i did but i didn't put "Connect Timeout=5".
can you explain a bit more what this adds ?

Thank You Wink | ;)

SeLoRBIS

Rizwan Bashir28-Jul-05 1:19

Rizwan Bashir

28-Jul-05 1:19

check this site... in dot net section connection over IP

http://www.connectionstrings.com/[^]

SeLoRBIS28-Jul-05 4:00

Re: Validating XML in VB.NET

28-Jul-05 4:00

I think , your URL is what i needed but i don't understand that :

SQLServer / SqlConnection (.NET) / Connect via an IP address:

"Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))

Could you explain me what is it exactly ?

Thank you

So it isn't running better but thank you for the link .
I think , the probleme come from my sql server install

SeLoRBIS

Validating XML in VB.NET

Anonymous27-Jul-05 4:17

Anonymous

27-Jul-05 4:17

Hi all,

Is there a way to validate an XML file in VB.NET. For instance, a user can import a file into my application. And my application will read the XML and perform some action on it. How can I make sure that the selected XML file is valid (contains valid elements)? Is there some way to compare a DTD in code?

Any guidance would be appreciated.

Thanks!

Briga27-Jul-05 4:36

Re: Validating XML in VB.NET

27-Jul-05 4:36

try to have a look at the XMLValidatingReader class in the .net framework. it does what you need

HiH
Briga

Anonymous27-Jul-05 5:15

Anonymous

27-Jul-05 5:15

Thanks!

fail to save new ATL ActiveX control on VB6 form page

Amos.A27-Jul-05 3:51

Amos.A

27-Jul-05 3:51

I have build an activeX controller in ATL VC++ that uses a window and shows camera captured frames, it works well in VisualC environment.
In Visual Basic 6, however, When I tried to integrate the control into a project, it was loaded ok but when I tried to save or run the project, I got a system Error
&H80004005 (-2147467259).

When I tried the same under .net environment, this problem didn't appear.

DO you have any idea what can be the problem or how can I debug it ?

Thanks
Amos.A

Strange IO.Directory.Move behavior

Brad Fackrell27-Jul-05 3:44

Brad Fackrell

27-Jul-05 3:44

Can anybody tell me why the code below would execute IO.Directory.Move and then re-create the original folder name?

Private Sub renameFolder()
   Dim Prompt As String
   Dim oldFolderName As String
   Dim folderName As String
   Dim selectedPath As String
   Dim newPath As String

   selectedPath = TreeView1.SelectedNode.FullPath ' get the full path of the selected node
   oldFolderName = TreeView1.SelectedNode.Text ' get the name of the selectd node
   Prompt = "Enter the new name for: " & oldFolderName ' ask for the new folder name
   folderName = InputBox(Prompt, "Rename Folder", oldFolderName) ' load the name into the variable 'folderName'
   newPath = selectedPath.Replace(oldFolderName, folderName) ' build the new path by replacing the old name with the new
   IO.Directory.Move(selectedPath, newPath) ' remove the old directory
   TreeView1.SelectedNode.Parent.Nodes.Add(folderName) ' add the new folder to the treeView
   TreeView1.SelectedNode.Remove() ' remove the old node from the tree
End Sub

Let me explain what is happening; When I step through this code with the debugger it seems to execute perfectly. After IO.Directory.Move(selectedPath, newPath) executes, the old folder is gone and the and the new folder is present.

The problem is that as the debugger exits Private Sub renameFolder() the old folder re-appears. At this point the new folder and the old folder are present.

Thanks
Brad

pcmcia card insertion detection

Briga27-Jul-05 3:30

Re: pcmcia card insertion detection

27-Jul-05 3:30

Hi,
i'm wondering how to "catch" when a pcmcia card (specifically a GSM modem) is inserted. I couldn't find anything in the .net framework documentation.
Any clue on how to do it?

Thanks
Briga

Briga27-Jul-05 4:28