i am trying to run a stored procedure from my vb .net application and i am getting an error that says something like this:
"..under default settings sql server does not allow remote connections"
i have checked with my sql configurations and i have allowed remote connections but i am getting this error. besides i am connecting to my local machine so why should it give me a remote connection error.
I have compiled a Vb.Net program in which I used R Programming through R(D)COM. The statconnector library works fine. The program gives output without any error.
However whenever I try to deploy the code and create a setup file, and I run the setup file, I get the following error: There is connection for this connection ID (Exception from HRESULT: OLE_E_NOCONNECTION)
I making a connection through word 2003 VBA to SQL server 2005 using the following codeDim cn As ADODB.ConnectionSet cn = New Connectioncn.ConnectionString = "Provider=SQLNCLI;Server=LEXAE29150SQLEXPRESS;" & _"Database=MCarter.mdf;Integrated Security=SSPI;"cn.openetc.cn.close.All runs fine up to cn.open.I then get the message error 'Cannot open database "MC.dbf" request by the login. The Login failed'.Tryed websearching but no succes. Been on it a week and the boss is doing his nut. I'm lost and unsure what wrong.The SQL server is set for windows authenticity and SOL Server login.In the MC database under security users my user name (Login) is their and setup as owner and sysadmin.SQLServer is running on the same machine as the word.dot.
View 3 RepliesI wrote a program in Visual Basic 2008 on my laptop that runs windows vista 64 bit, well the program attempts to access an Sql server that I am running on my laptop and it continues to give me the following error:
[Code]...
I get a Type 'System.Data.SqlClient.SqlDataReader' has no constructors. error on the 5th line of code below and I get a Variable 'e' hides a variable in an enclosing block. on the last line of code below (in my catch statement).
Here is my code:
Imports System.Data.SqlClient
Public Class Form1
Dim myConnection As SqlConnection
[code]....
I have a an application that opens a SQL connection and over the course of a few hours creates and disposes of tens of thousands of DataReader objects. You could look at it as just one big loop. As the time goes by, the memory usage steadily climbs until the application/system runs out of memory and crashes.
Psuedo code would look something like
SQLConnection.Connect
Do Until x =1000000
Create New DataReader
Use DataReader
Close DataReader
[Code] .....
Even though I dispose of the DataReader object when I am done with it, the memory usage keeps climbing. I found that every time I am finished with the DataReader I have to close the SQLConnection and dispose of it. When I do that it keeps the memory usage very low and the processor usage is barely noticeable. I would think I could just open the SQL connection once and close it when I am done.
I'm connecting to an ftp server in my .net application. After I send the file and try to close the connection, I'm getting an error. I'm trying to send the Quit command to the FTP server but getting no reply. I'm not sure what I'm doing wrong. I call this method: [code] Do you think something is wrong with the code of could it be a problem with the ftp server?
View 2 RepliesBetween ODBC and OLEDB providers, which one is more flexible at both the application level, and at the report level using crystal report?
View 1 Replieshow to code for database connection in vb.net 2005?
View 3 Replieshow to code for database connection in vb.net 2005?
View 1 RepliesUsing - VB2008 Express, XP Pro,
Connecting to SQL 2005 across the internet
The walk throughs have several good explanations although I don't see any about connecting over the internet.
I used the wizard in VB 2005 to add my database. Under the "Applications Settings" area in VB my string is currently set to:
[Code]...
what is the connection string for Access for connecting Access Database with ADO.NET (For win app).
View 1 Repliesi have visual studio 2005 installed in my pc.i have sql server 2000 as database.i have expertise in client server software written in vb6.now im trying to do the same in vb.net.i dont know how to establish a global connection in vb.net.how to do that in vb.net?in vb6 i would just write a public function in a module and it remains throughout my application.so how can i achieve the same thing in vb.net.
View 4 Repliescode snippet to get active network card name, that is the network card currently connected to the internet in c# or vb.net?
View 5 RepliesI get an error saying that the connection was rejected by the target machine here, suggesting that my firewall is working well
How do I make sure that the connection is accepted? It's a chat program (obviously) so I'm going to need to do the same thing on users' computers when it is installed. How do I make this in such a way that the connection will be accepted but leaving security uncomprimised?
vb.net
Imports System.Net.Sockets
Public Class QuickChat
[Code]...
Dim SQLData = System.Configuration.ConfigurationManager.AppSettings("FixedLineProvisioningConnectionString")
[code].....
my project is attached. I have a very weird problem with Winsock! I made 1 program with 2 forms. 1st form is the client, 2nd form is the server. Server send snapshot for client. So, client display either Single Picture. Or stream of pictures (to simulate video capturing).
when open 1st window (client) in a computer, and 2nd window(server) in another computer... it connect and display picture without problem just once!! when press "Capture" button again it may reponse or Winsock may loss connection. and when Check "Loop"=> means for stream of pictures.. Winsock loss connection immediatly! I don't know where is the problem exactly! The code attached. Winsock ocx is attached.. see it in the release folder
I have built a client-server VB.net inventory application for our company which connects to our Server machine running on Windows XP. We have 6 client machines running also on Windows XP that connects to the Server's database. Now, my problem is, "How do i connect a client machine running on Windows Vista to our Server running on Windows XP wirelessly?"
- Is there something I have to alter on the SQL Server Surface Area Configuration?
-Or do I have to change the 'Connection String' on my software application so as to properly connect to the Server from a Vista mahine? If then, how?
This is the error its throwing:"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)"
Connection String Using .net 2005 With Sql Server 2000?
View 1 Replies3 years ago I developed a vb.net application that connect to sql express 2005 data base.The application worked fine.e replaced our computers, so we installed the application again. (The same exe file, the same sql server and so on).Now, only when loading few forms I receive the following message: n error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Note that when we log in to the application, a connection is needed. The user verifying is working fine; it means that the connection is working properly.
View 1 RepliesI am working on designing a SQL Server database connection class in VB.net 2005. The idea behind doing this will be so a developer can can call the class, pass it a stored procedure name along with the parameters, and get return values back (if any).
View 1 RepliesI want to know how to connect sql server 2005 to vb.net windows application
1)is there any connection string ?
2)if so i am using windows authendication in sql server 2005 management studio so am not entering any user id and
password to enter in sql server
3)so what should be the userid and password for the connection string can any one send me a sample code that i can refar
Public Class HotelReservation
Dim currRec As Integer
Dim totalRec As Integer
Dim dt As New DataTable
Dim cmd As New OleDb.OleDbCommand("SELECT * from Reservation", conn)
Dim da As New OleDb.OleDbDataAdapter(cmd)
Dim ds As New DataSet
[Code]...
am working on a project and am using sql server 2005 express as my database server, the problem is i can;t connect to the sql server from any machine on my local network (windows).
Below is my connection string
con.ConnectionString = "Data Source=webserver1SQLEXPRESS;AttachDbFilename='C:POSM_DB.mdf';Integrated Security=True;Connect Timeout=30;User Instance=True;"
It works all right on the development machine but not on network, i think it has something to do with the network.
I am trying to connect VB 2008 express with sql 2005 standard edition on a reomte server. Is this possible or VB 2008 express version limits this Can some one guide me with the connection string to achieve this.
View 1 RepliesWhat is the connection string for the sql-Server express?
I did this
CODE:
But this connection string is not correct:
CODE:
What will be the correct one?
How do I display may sql databases in listbox without connection? Is it possible? Right now I have this:
Dim connString As String = "Data Source=.sqlExpress; Integrated Security=True;"
Using sqlConn As New SqlConnection(connString)
sqlConn.Open()
Dim tblDatabases As DataTable = sqlConn.GetSchema("Databases")
sqlConn.Close()
For Each row As DataRow In tblDatabases.Rows
ListBox1.Items.Add(row("database_name"))
Next
End Using
I am doing this because I wanted the user to create the connection for the main application to use. Right now, i have a combobox with items, MyServ/SQLexpress and ./SQLExpress. I have a textbox and a listbox where the user will choose from the items from the listbox which will then display in the textbox.... I dont like to explicitly put in my code this
=.sqlExpress
In one of my button I have this code
builder("Data Source") = Me.cboDataSource.Text.Trim
builder("Integrated Security") = True
builder("Initial Catalog") = Me.txtDBName.Text.Trim
builder.ConnectTimeout = 30
I want to start a new project on PC and Mobile Phone. But i'm still have so many question about the communication between PC and Mobile.
My project List:
1) My idea is establish a connection between PC and Mobile through IP address in first, but my question is 'How to do it' ? izit same like PC to PC by using Winsock open a port to access? i'm using VB.Net 2005 for PC and Net60 for mobile.
2)My mobile phone Nokia 6220 Symbian OS is support GPRS/3G. Since the GPRS/3G can connect to the internet, izit means mobile itself have a IP address and service provider in order to surf the web? So, can i connect my mobile phone to PC through this gateway?
I have installed smart card reader to my pc and it works when testing time. However, i need to make a project where whenever i insert smart card on the reader,the texbox in the screen will appear the information of the card. The product of smart card or so called mifare card is ACR120S.
View 4 Replies