I want to know that if i install simply a software that developed in vb.net (sqlserver 2000) as backend. How can i access sql server from other computers without installing sql server, because iam using sql server database through .mdf file which need no installation of sql server. So i dont want to install sql server for making client server.
View 9 RepliesI would like to ask some advise for the best thing to do regarding with this matter. Im working with a client-server application and I should run a pdf file from the server in the client application. The file name is the only saved in the database(MySql) and the full path is in the server. What technique should i used i order to access this file in the server., I planned to use the winsock. Im working in vb.net.
View 1 RepliesI have been reading through Atheists posts in regards to client-server and TCP client/server connection's. But how do i go about writing a program with 1 client and server where the client side creates a text file.Once the server sees there is a text file it connects and downloads it to itself or the client pushes the text file to the server.Once on the server i will read the text file and put its info into a sql db.
View 14 RepliesI am getting the below error when I click a row in the grid. But this error is raised only in exe, which is installed in client machine, but when I check the same from source code in my machine, i am not getting this error. I am able to locate the record.
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We are creating a Who wants to be a millionaire style game in VB. Our server is pulling information such as questions and answers from a Access Database and sending them to the contestants (Clients). All transfer of information is directly from the server to each client. One of the "Life Lines" we want to use is "Ask a friend", where one client is able to Instant message another client for a short time to get help on the question.
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i want to know how to access the client computers using the vb.net program
View 1 Repliesi an encounting this problem that is...my database is unable to access in client pc and its comes out this error: cannot open database "synonym" requested by the login.The login failed. Login failed for user 'SIDNEY-U1KECH4Tsidey'.
View 8 RepliesI tried this one...but its not working.[code]...
View 1 RepliesI am writing in VS2005 what, on the face if it, should be a relatively simple DLL, which will allow me to build a list of custom objects when called from within Excel 2007. To do this I have a Column and Columns class. As implied, Columns is a list of Column objects. The relevant classes are defined as follows:
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I have a client/server program. There is a variable called readData that takes returndata and places it there. My question is, why can't I access this variable directly, for instance, varC = readData and then try to access a piece of it i.e. textbox1.text = varC(2), I get an error "object reference not set to instance of an object". Why is this happening? It is because the readData is a networking 'component'? How do I get around this? I can post more code from the server app if needed.
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I would like to create a server program that accesses an "ms access" database. I will also need a client program that connects to the server. The reason for this is that the server is a mediator for several clients. Since I am using access, I plan on maybe having 20 or 30 clients connect to the server only. The client will have access to a virtual market. So when a person buys or sells something on the market, the server mediates the transaction and etc. At the same time, the access database saves each clients data as well as the overall market data.
View 1 RepliesI've made a simple knowledgebase program which contains example documents. The documents are stored in a folder, and in an accessdatabase stands the information about the documents.The program also includes a simple search option. The program itself is located in a folder on a network computer.It has to be a network program for collegues can add other examples.Now it gets weird. at least in my opinion.When I run the program locally -> no problem.When I run the program from another network PC -> no problem.But when I run the program from a network Thin Client -> shaboom..At least when I enter a search option and the connection to the database is opened:"Application attempted to perform an operation not allowed by the security pollcy. To grand this application the required permission, contact you system administrator or use the Microsoft .NET framework configuration tool."[code]Now I've found a LOT of topics in this forum and many others, and it's clear that apps from another network location are run without "full trust". And the trust issue can be handled with caspol or web.config. Although caspol is a mystery to me and web.config didn't seem to work.But since it's so explicitly crashing on Thin Clients.
View 6 RepliesI have a form with a list that shows information from a database. I want the list the update in run time (or almost real time) every time something changes in the database. These are the three ways I can think of to accomplish this:Set up a timer on the client to check every few seconds: I know how to do this now, but it would involve making and closing a new connection to the database hundreds of times an hour, regardless of whether there was any change Build something sort of like a TCP/IP chat server, and every time a program updates the database it would also send a message to the TCP/IP server, which in turn would send a message to the client's form: I have no idea how to do this right now Create a web service that returns the date and time of when the last time the table was changed, and the client would compare that time to the last time the client updated: I could figure out how to build a web service, but I don't how to do this without making a connection to the database anyway The second option doesn't seem like it would be very reliable, and the first seems like it would consume more resources than necessary. Is there some way to tell the client every time there is a change in the database without making a connection every few seconds, or is it not that big of a deal to make that many connections to a database?
View 3 RepliesI like to compress the xmldata before the data is provided to the client as an excel file. I am trying to compress and deliver it as a .zip file. its not working Here's my code below. I tried compressing it, converting it to bytes etc etc. The issue with below code is, the XSL transformation is not happening properly and the output excel file is raw xml with some .net exception at the end. (that's what I see on the .xls file that's downloaded at the end) Before I started working on compression my below code was working fine that gives properly formatted excel file from the xml input. the excel file is so nice you can't even tell it was from XML.
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I am use this code to transfer a file from a webservice to the clint:
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I have trouble in running my program. I don't have yet much idea on how to this. I want to view the pdf file from the server and display it in the client.I tried to use winsock in vb.net but could not find a clearer example regarding my problem.
View 5 RepliesI have an application that takes a series of reports and sends them as attachments in an email to a specified group of email accounts.
When I run the Java version of this using apache commons and the same setting, the email is sent. However, when I run the VB.NET version of the code, it fails on my local machine and on the client machine.
I have a VB.NET web application running on a server that uses similar code. I tried that code locally and it fails. Yet, the web application is working perfectly.
Why is it that the Java application can send the email, but the .NET application cannot?[code]....
Im using the code from [URL] as a starter, most of the code is the same. the chat system works fine but on the client a added a disconnect button "clientSocket.Close()" and as soon as i click that i get errors, on the client, this is the code...
Private Sub getMessage()
For infiniteCounter = 1 To 2
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And this line...
serverStream.Read(inStream, 0, buffSize)
gives me "Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall."
Now im talking the server, after the client clicks disconnect or closes by task manager, looses connection, etc the server crashes and gives me.
I have a file from the client which is a text file. I have to decode the file to a graphical representation.Is there any way I can do it?
View 14 RepliesI create an automatic ftp file downloader by using FTPwebrequest. In which, is there any possible to download multiple files simultaneously using Asynchrounous and threading concept?
View 1 RepliesWe have a requirement to copy a .txt file into the client machine and open the file using notepad.exe.
We develop our application using MS Visual Studio 2008 VB .Net.
I want to create a file upload client for [URL] and I wanted to know if it is possible to make an application that lets you select a file from your hard drive, press an upload button and then the app will process it just like the website processes the file when you use a browser.Also I want the app to display the progress bar that the website displays when you upload, and when it's done, it has to get the URL for the uploaded file and display it in a textbox.
View 1 RepliesHow to "download a file from sever to client".
View 3 RepliesI'm encountering problems when i want to download files from my server to my clients. My client is able to connect to my server but it will never transfer the file over to my client and i am unable to solve it.
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Anyone know how to tranfer a file with server/client I found some on google but the code errors on me or it won't send the whole thing.
View 6 RepliesI'm using .Net. Is it possible for a web form to upload an image from a web or FTP server? The files I need to submit are on the web.
View 1 RepliesI want to build an application(the client and server) that the clients would be able to see and modify only certain files on the server depending on their credentials. For example, a specific client can read/modify a word file, but another cannot. And the server should specify which client has which rights. After a client has made any change in a file, every other clients should be notified by email. I've read some articles about .Net Remoting but I still don't know how to make a client see/modify files on the server.
View 1 RepliesI'm trying to upload a file to a remote server by using vbscript
below is a code :
Dim fso, f, myFile
Set fso = CreateObject("Scripting.FileSystemObject")
myFile =$URL
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the problem is with this code i can copy the file only in the same PC but it didn't work when i try with different machin i mean from client to server?
How I Can Download The File Into The Server To Client System In Vb.Net Appliction
View 1 RepliesI really need to know if its possible because I'm making a messaging client since me and my friend find believe MSN is getting buggier. I've looked on how to do it but none of them worked for me, or were server to client. I want to make it client to server to clients but I don't know how! I know I shouldn't tell you to give me code but maybe give me a few tips on this. Me and my friend share files nearly everyday.
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