VS 2008 XML And Combobox Connection?
Jun 30, 2009I'm using Visual Basic 2008 Express Edition. I have a problem.I'm trying but i can't solve.There is a XML file on my website.
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Checking Sql Connection Using For Combobox
Sep 28, 2009I can't populate my combobox with ANYTHING I code, and I don't like the click and pull system. it compiles, no exceptions, but it still doesn't populate my combo... this is the code
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[2008] Error - Unable To Read Data From The Transport Connection: The Connection Was Closed
Mar 15, 2009I have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
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VB 2010 Connection To Access With ComboBox To Searsh?
Apr 19, 2012I'm making an program to searsh trou a access db with a combobox it neet after selecting to show the wricht value in a textbox and a numberupdown
i have tried to load al data in combobox but when i select it nothing happen
VS 2005 Save Settings Database Connection And ComboBox Selection?
Jan 15, 2010I have a program that reads a database file(.csv or.Txt) then allows user to select data from 6 different comboxes and taext boxes are then populated based on the selection made from combobox
I would like to be able to give the user the option to save their settings so next time the program is open it will connect to the same database as the last connection and also have comboboxes go to the last selection Do I have to create a save setting value for each combobox? and the connection string?
is there a simple way to just save everything? so when the program is open it goes back to the last time it was open.
Application Setting - Switch Main Server And Backup Connection String With Combobox
Mar 5, 2011I have a little problem with application setting in VB.net 2008. I want to switch main server and backup server connection string with combobox. [Code] It did change the Application Setting connection string in the main form when combobox1 was changed. But the problem comes, when child form was called. On the child form there is DataGridView with Dataset using application connection string. Even the Backupserver was selected on the main form, child form dataset connection string doesn't change. I don't know how to pass the current connection string to child form dataset although it is set to use application setting.
View 6 RepliesVS 2008 Connection() Name Connection Not Declared
Oct 14, 2010I am trying to connect sql server 2008 in visual express 2008. at connection() line i am getting error. name connection not declared. anyone can one tell me what may be the reason for that error.
my
#Region "Statments"
Imports System
Imports System.Collections.Generic
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VS 2008 Combobox Properties - Make The Combobox Not To Be Able To Write Yourself?
May 13, 2009I have completed my project and i have one remaining thing to settle... I want to make the combobox not to be able to write yourself. for example there are 4 options ,"A","b", "c","d".If i type w in the combo all the project is ruined!i want not to be able to type at all to prevent this...Which property should i change?
View 5 RepliesAssign A My.Settings.Item Connection String To Cmd.Connection Connection String Value?
Aug 25, 2009How do I assign a My.Settings.Item connection string to cmd.Connection connection string value?
Dim cmd As New SqlCommand()
cmd.Connection = My.Settings.Item("csStaffHoursWorked")
cmd.CommandType = CommandType.StoredProcedure
cmd.CommandText = "spSaveDeltekImport"
VS 2008 .net And Sql Connection?
Nov 18, 2011i am doing project in vb.net 2008 using sql server 2008. how ever suddenly changes that i made in my sql server database ate not getting reflected in my project database ..
View 3 RepliesVS 2008 Connection To DB Using ADO 2.x
Feb 3, 2010how come the
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VS 2008 Sql Connection?
Sep 24, 2009if you can't understand, my english is bad.. and i have a failed grade for that.can anyone help me, to provide me a sample sql connection for vs2008, im not familliar w/it because i only use vb.. and i always use access for my database
View 1 RepliesVS 2008 TCP Connection ?
Mar 5, 2011I have this piece of code which I cant seem to get working properly. I am trying to create 2 programs (a client, and a server). This is working so far with establishing connection over LAN, but for some reason when I try to connect to my friend who's on another network, it doesnt work. I happen to believe this is because he has an internal IP which is 192.168.x.x and an external IP which is pretty much any number :P But erh... How can I make my program to first connect to the external and then continue to the internal IP? :s Since I cant really write his internal IP only, cause it'd think Im trying to connect to a computer on my network. And I cant write only his external IP either, since that would only connect to the router... And I don't see an option in the following code that allows me to write both an external and internal IP :s
Anyways, here's the code (Ive left out everything, I am pretty confident, that doesn't have anything to do with it ):
Client:
CODE:
Once again, works over Local Area Network (LAN xD), but not over the internet (My computer -> My router -> ISP (Not sure if there's anything in between here xD) -> Friends ISP -> Friends router -> Friends computer)
Display Connection Properties Dialog For Connection String Browsing(for Database) In Run Time?
Feb 5, 2010Is there a way to display the connection properties dialog for connection string browsing(for database) in run time?
As I want the user to be able to connect to various database using the GUI.
Error - ExecuteScalar Requires An Open And Available Connection - The Connection's Current State Is Closed
Aug 3, 2011i have an application. which is executed after every 5 mins. i have an open connection but it gives me the following error:
ExecuteScalar requires an open and available Connection. The connection's current state is closed.
my code is something like this. I have shown where all i am using ExceuteScalar()
Sub Main()
Try
connection.open()
cmd.ExecuteScalar()
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Sql Server - .net Program Dataadapter Connection Closes After Fill But Database Still Shows Connection?
Aug 19, 2010After running the following sub (VS debugger), I try to detach the database in SSMS, but it shows the connection open still and won't let me detach. If I close program in debugger, the database shows no connections. I check the dataadapter's connection in the finally block and is shows closed. What gives
Private Function ClientMasterDBFiles(ByVal MasterClientDBConnection As String, ByVal DBName As String) As DataTable
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Disable The Local Area Connection While Leaving The Wireless Connection Enabled
Jun 21, 2010I am attempting to write a program that will disable the Local Area Connection while leaving the Wireless connection enabled. My company is using net-books in our stores to demo air-cards and we need to keep them off of the LAN. I'm new to VB and VB.net, and it's been a while since I did any type of programming. I've gathered some code that others have posted in forums and tutorials and I'm working through a tutorial book, but I finally believe that I am stuck.
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ExecuteNonQuery Requires An Open And Available Connection, The Connection Current Stat Is Close?
Nov 30, 2008i make a class and when i call on form then that error occurs "ExecuteNonQuery requires an open and available connection, the connection Current stat is close "
Class Code isImports System.Data.SqlClientImports System.DataImports System.StringPublic Class DatabaseKits Dim Cn As New SqlClient.SqlConnection Public Function BuildConnection() As Boolean Try Cn.ConnectionString = "Persist Security Info=False;Integrated Security=True;Trusted_Connection=Yes;database=BizAimsPro2008;server=Server-2k3s" BuildConnection =
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Networkstream Connection Fails & Httpwebrequest Connection Not Reading Fast
May 17, 2012I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files. If I use method "CONNECT" it does not connect to the stream.
While (True)
webrequest = DirectCast(Net.WebRequest.Create(url), HttpWebRequest)
webrequest.Credentials = New System.Net.NetworkCredential(username, password)
webrequest.Method = "GET"
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should I increase the buffer size and if so what is the max? that would mean I can read more data at a time and keep up with incoming push. Disparate here.
ACtually also I noticed that it gets stuck on this line
numbytesread = responseStream.Read(bufferread, 0, BUFFER_SIZE)
and then eventually I get disconnected.
Networkstream Connection Fails & Httpwebrequest Connection Not Reading Fast Enough
May 17, 2012I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files.If I use method "CONNECT" it does not connect to the stream.[code]
View 1 RepliesWinforms - .net Connection Entity Framework Connection String Security?
Sep 3, 2011I understand the possibilities for encrypting a connection string in .net v4. I have a win forms application that will be used by multiple people on different machines. I understand that I need to protect the connection string at time of the app being first run on the target machine. However I am concerned that for a period of time my connection string will be unencrypted. I am looking for advice in how to deploy my app with the connection string already encrypted or encrypted during installation. encrypting the connection string in a secure way?
View 1 RepliesOld ADO Connection String Using 2008?
Mar 3, 2010I had a job interview today where I was asked to build a GUI for an MS Access 2003 database using VB.Net 2008 and old ADO. I looked on [URL] to find the correct one and I wasn't sure given the diverse development environment.
View 2 RepliesVS 2008 And Mysql Connection?
Jan 11, 2011I created a mysql database and I want to connect to it through VB.Net 2008 using MySQL Connector Net. For this I made 3 forms, 1 form - login form, 2 - as ADMIN, 3 - from USER, the database each user has a role defined by regimes (admin / user). The problem is the following - after entering the username and password will not open one of the forms 2 or 3 but the application closes without any error.The code is:
vb.net
Imports MySql.Data.MySqlClient Public Class Form1 Const AppName = "MySql" Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
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VS 2008 Connection Has Not Been Initialized
Jan 26, 2011I have 2 datetimepickers. I want to run a select statement between startdate and enddate. When I run the project. I get the error: "The Connection String property has not been initialized." [code]
View 5 RepliesVS 2008 Connection To MySQL DB?
Mar 9, 2010so ive drank goats blood, sacrificed a virgin to the gods and more and im still not any closer to connection to a DB in vb.net (something that takes about 2-3 lines on code in a sensible language)....
Imports System
Imports System.Data
Imports MySql.Data.MySqlClient
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VS 2008 FTP And Remote SQL Connection
Nov 25, 2010Can anyone provide me with some sample code on how to connect to the hosted FTP server, and then connect to the MS SQL database file available there?
View 8 RepliesVS 2008 Oracle DB Connection
Sep 8, 2010Anyone know where I might be able to find code examples for connecting to an existing Oracle DB? I need to connect to my company's oracle db so I can write strings to it, verify strings, and read from it. I've found bits and pieces of code here and there, but nothing for all of it. I am a novice programmer and I am trying to add a db connection to an existing project for our plant to access the data. Our IT dept. is helping me with the db end.
View 2 RepliesVS 2008 Sql With Connection String?
Sep 19, 2009When i start computer or after restarting the first time when i open my program show this message: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.What is problem here is connection string.vb.net
Public conn As New SqlConnection("Data Source=.SQLEXPRESS1;Initial Catalog=PesniDB;Integrated Security=SSPI")
VS 2008 Terminate A Tcp Connection?
Jun 4, 2010how about to terminate a tcp connection My program can view all the TCP connections and i want to terminate some connections but i realy don't know how to terminate some connection from another process
View 27 Replies[2008] Indicator For Net Connection
Feb 6, 2009Almost at the final hurdle of version 1 of my project. What i'd like to have is two indicators based on red and green lights Check for net connection and show green if available, red if not When sending data to mysql DB show green light I'm not sure if its possible but so far I have established this for the mysql data send but the data sends so quickly it changes like lightning.
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