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I am inexperienced in VB and have developed a VB version of an old simple turn based game that I used to play on an Apple II 30 years ago. I want to include a capability to communicate between two instances of the application so that small, simple packets of data can be passed between them to allow for the turn's moves and results can be passed between the two instances. The two instances will be on separate networks so I envision internet communications to pass the data.
I have been using Visual Basic Express 2008 and have not been able to locate help or code samples to assist me.
Is this a capability not supported by VB Express 2008?
Is there reference material or examples that might be helpful?
Any help would be appreciated. Thanks in advance
Bubba...
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You might want to have a look at this article[^] on codeproject.
Socket programming link here[^].
| There are only 10 types of people in this world — those who understand binary, and those who don't. |
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Hello Everybody,
Actually i want to use my application to Full trust appliation. After a lot of searching i found some help from google. He says that Wintrust.dlll is used to perform this action.
So please help me how to use wintrust.dll to execute my application to Full Trust.
Thanks
If you can think then I Can.
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The machine has to be told to trust the application. The best your app can do is to request FullTrust permissions. You cannot use wintrust.dll to force your code to run as "FullTrust". Telling the system to trust your code is normally done at installation time, not runtime. All code the user launches executes AS the user and cannot grant itself more permissions than it already has when launched.
Code can be run from various sources, either local, network, or whever. Each of these sources falls into several categories, called Zones, like MyComputer, LocalIntranet, Internet, Restricted, and Trusted. In a default configuration, if your code was installed on the local drive, it would be running from the MyComputer Zone and have more permissions to access machine resources than if the very same app was running from the LocalIntranet or Internet Zones.
I highly recommend reading up on Code Access Security so yuo understand what's going on and how to apply it to what you really want to accomplish. BTW: You never said why you want to do this.
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Hi,
i want know hw to give folder permission in local/server system
Yours,
KaNNaN
-----------------------------------------------------------------
"Success is When Ur Signature Becomes An Autograph"
Mail To : foreverkans@gmail.com
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Assuming that you're referring to the local file-permissions;
SetAttr("C:\boom.bmp", vbReadOnly)
Giving rights to a specific user/group from the Active Directory is somewhat more work.
I are Troll 
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Hi,
I have with cp help and some other sites added t2s into my program. Unfortunately the only speech installed on the systems is Microsoft Sam. I want some others preferably Dutch and French. Someone has an idée where I can find them? (And yes I have look into Google but find nothing useful)
Jan
I'm working with VB.net 2008
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Like I wrote. I have look into google. and the first site in your joke is the first one I have tryed. however after install I don't have a new voice.
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Hi,
If anybody have an idea how to scan an image from scanner / how to write interface program to scanner in vb6? pls share here.
My company is not preferred to use any third party components.
Regards,
Rishi
WinCrs
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try http://vintasoft.com[^]. They have an ActiveX control for scanning.
I have used the .NET version which worked perfectly, good support.
Tosch
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Hi all
Happy new year.
Currently i am working on a project which required an Excel File to be opened at the run time in a Richtextbox.
i tried the following code
Richtextbox.loadfile(path,type)
it load the required file but content of the file was not readable.
kindly help me.
Thanks
rmshah
Developer
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Hi,
Actually, Excel and RTF (RichTextFile) use different structure!Actually, you can use the Excel Object Library to access and manage your excel files (check this article Opening and Navigating Excel with C#[^] hope it helps.
Do you want to open it as read-only or for editing?
good luck and happy new year.
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To put it simply you don't display an Excel file in a RichTextBox, this control is really only designed to display RTF and plain text files.
I think your best option would be to invest in a 3rd party control designed to display Excel files such as those from Spreadsheet Gear[^].
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I am trying to build a VB.NET windows app which gets cars info from a webpage(webapplication) that has a username and password.
I was able to programmatically login to this webpage(by automatically populating the input boxes) And after I logged in, I could view the cars data in browser and I did "View Source" but the cars data (such as car model, brand, color etc..) were not viewable in the page source code. So how can I read these data with my application?
I hope my question was clear and literally need some help.
Thanks
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This is an example of calling a webpage and getting the ip address from the source - i use it as part of my dynamic dns client that i made.
Dim Req As HttpWebRequest = WebRequest.Create("http://www.whatsmyip.us/")
*****************************************************************
** if you need to pass credentials then do this line **
Req.Credentials = New NetworkCredential("USERNAME", "PASSWORD")
*****************************************************************
Dim rs As New StreamReader(Req.GetResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("utf-8"))
Dim s As String = rs.ReadToEnd 'you know now have the entire source in variable 's'
rs.Close()
rs.Dispose()
rs = Nothing
Req = Nothing
Dim IP As String = Regex.Match(s, "\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}").Value
'Never argue with an idiot; they'll drag you down to their level and beat you with experience.' ~ anonymous
'Life's real failure is when you do not realize how close you were to success when you gave up.' ~ anonymous
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That code will only work for a web page that forces the browser to show a login dialog box. For all others (most) websites, you'll have to get the login page, find the textboxes in the returned HTML, fill them in and submit the page back. No, I don't have an example.
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jadothebest wrote: I done this part already, I can finally login(i used webbrowser control).
You already did it. You use the same type of code to find the elements in the page and extract the data from it.
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and I clicked "View generated source code" and I could see the data there.
In my case the cars data are being shown in a dynamic table, 1 row adds up as soon as a new car comes.
Here is 1 row of data:
<td class="x-grid3-col x-grid3-cell x-grid3-td-dealer x-grid3-cell-first " style="width: 78px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-dealer" unselectable="on">Privat</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-manufacturer " style="width: 98px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-manufacturer" unselectable="on">AUDI</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-modelDescription " style="width: 157px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-modelDescription" unselectable="on">A2 1.4 </div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-price " style="width: 88px; text-align: right;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-price" unselectable="on"><span class="format-right">7.000</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-firstRegistration " style="width: 58px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-firstRegistration" unselectable="on">6/2000</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-mileage " style="width: 73px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-mileage" unselectable="on"><span class="format-right">122.000</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-powerInKw " style="width: 48px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-powerInKw" unselectable="on"><span class="format-right">55</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-modificationDate " style="width: 98px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-modificationDate" unselectable="on"><span class="format-right">Heute - 21:29</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-location " style="width: 98px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-location" unselectable="on">85256 Vierkirchen</div></td>
few of values which i want to grap are 'AUDI', 7.000, "85256 Vierkirchen"
So far I coudn't grab these values using my code... So I thought of a new solution, I installed another ffox addon called "firebug" and checked how the data is coming and found out it's REVERSE Ajax DWR requests and responses.
I monitored these requests, and I noticed that every 1 minute, a request/response comes via POST and all these responses have the size of 90 bytes. But then I saw a response with a bigger size(about 648 bytes) I quickly checked the table in website, and YES a new car was there.
Since I had no idea about what reverse ajax dwr is, i googled a bit and found out that this website is using the polling method for pushing data every 1 minute from server to browser.
So to make this short, the data is coming from website to my browser every 1 minute, here is the response Body which I saw in firebug:
//#DWR-START#
adQueueListener.addNewAd({adId:124725772,category:'Limousine',changeInfo:{adId:124725772,adVersion:24,changeEventId:457859860,changeSubtype:['DESCRIPTION'],changeType:'Update',comment:"DESCRIPTION",creationTime:1262659849452,modificationTime:new Date(1262659849000),objectType:"AD"},city:"hanau",climatisation:'AUTOMATIC_CLIMATISATION',color:'BEIGE',commercial:false,consumerGrossPrice:4200.00,creationDate:new Date(1260208837000),dealer:false,dealerGrossPrice:null,doorCount:'FOUR_OR_FIVE',firstRegistration:new Date(788914800000),fuel:'PETROL',machtedFilterNames:["Mercedes"],makeName:"MERCEDES-BENZ",manufacturerColorName:"",metallic:false,mileage:149000,modelDescription:"C 180 Elegance",modificationDate:new Date(1262659849000),numSeats:5,powerInKw:90,powerInPs:122,priceDecrease:false,sellerId:2467966,transmission:'AUTOMATIC_GEAR',vehicleCategory:null,version:24,zipcode:"63450"});
//#DWR-END#
//#DWR-START#
dwr.engine.remote.handleCallback("47","0",0);
//#DWR-END#
The response location(ajax script location) is http://gb-ticker.mobile.de/ticker/dwr/call/plainpoll/ReverseAjax.dwr The data I want are in the adQueueListener.addNewAd method. So how to get these data from this ajax function?
Please let me know whether it can be done by parsing the html code or the ajax requests.
I will be pleased if you can shed some lights.
Many thanks
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I have no idea. I've never done it and never will.
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Hi all,
I use the following code to import a XML file into an Access database:
Dim ds As New DataSet
Dim streamRead As New System.IO.FileStream(strFileName, System.IO.FileMode.Open)
ds.ReadXml(streamRead)
streamRead.Close()
If ds.Tables.Count > 0 Then
strConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & dbname
objConnection = New OleDbConnection(strConnection)
objConnection.Open()
objAdapter = New OleDbDataAdapter()
objAdapter.ContinueUpdateOnError = True
Dim cb As New OleDbCommandBuilder(objAdapter)
For intI = 0 To ds.Tables.Count - 1
If ds.Tables(intI).Rows.Count > 0 Then
cb.RefreshSchema()
objAdapter.SelectCommand = New OleDbCommand("SELECT * FROM [" + ds.Tables(intI).TableName + "] ", objConnection)
objAdapter.Fill(ds, ds.Tables(intI).TableName.ToString)
objAdapter.UpdateCommand = cb.GetUpdateCommand()
objAdapter.Update(ds, ds.Tables(intI).TableName.ToString)
End If
Next
objConnection.Close()
End If
The import works fine, but when a next XML file is imported with less records, the database don't get updated and the 'old' records remain in the database. Simply delete the 'old' records is fine by me.
Can somebody point me to the right direction.
With kind regards,
Jurgen
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explicitly set the update command
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