Asp.net - Database Connections Work Fine When Application Is Run From Localhost. Login Fails From Dev Server
Jun 11, 2009
I have an application which connects to a database, retrieves a username from a user's table and matches it against the username retrieved with System.Security.Principal.WindowsIdentity.GetCurrent.Name.On my localhost, everything works fine. The database exists on the development server but the application lies on my localhost. All of my authorization and authentication techniques are running smoothly.However, when I publish my application to the development server, I'm faced with the following error.Cannot open database requested in login 'databaseName'. Login fails.Login failed for user 'DevelopmentServerNameASPNET'.
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Mar 1, 2011
I got the above error when i deploy my web application into windows server 2003. How do i resolve it? [code]
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Feb 6, 2008
I've built an app that uses the Groupwise (email client) API. It will perform as expected when I hit F5,everything is good, when I use ctrl+F5 it fails with an access violation (see below). I tried to used JIT debugging, but I never get to see the source code, just the assembly. The app *never* fails with this error when run in the IDE.Groupwise documentation is sparse.[code]...
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Sep 16, 2009
I have an ASP application with Sql Server 2000 database. The application has a login page. It was working fine. But from past few days, some times login fails and some time it works. I looked into the procedure and ASP page but could not find any issue.
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Jun 1, 2010
What happen if i want connect to a database server is not my computer local host, is another computer localhost in LAN network? how it works? [code] how about i wan connect the server is another computer localhost database?
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Feb 26, 2011
Iam developing a Windows application using Visual Basic 2008 with a SQL Server database. Throughout the program I give the user as many options as possible and have no problem with either the database or the windows forms. The program does not initially require a Login and I want toprovide the User with the opportunity to add a Login to the system. The default Login form is perfectly satisfactory.
The problem is that I can't figure out how to program the change sothat the Login from isopens the program rather then th form designated as the StartUp form. this forum I am able to prgrammatically change the form but I can't figure out how to make the requirement a permanent factor. I tried using a Constant, but if the User wants to change, you can't change the constant. Its an apparantly simple yes/no situation but if I set a varable to yes and then change it to no the next time the program runs, the change will be lost.
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Aug 17, 2010
I have a .net window application created and I wanted to see if it's at all possible to place various file dependencies off the web server. e.g. is it possible to have the connection to the database be off a web server?
I also would like to see if it's possible to place one of the .dlls off the web and have code that points to it to load.
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Jul 21, 2011
I receive this error: [code]whenever I run a query via a visual studio project in vb.net. If I run the same query via Open Office Base, it takes a long time but it works. How do I go about troubleshooting whats causing this?
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Jul 19, 2011
Using VB.Net and SQL Server 2008 R2: I have recently had a database that using sp_who2 reflects a connection ".Net SqlClient Data Provider" is still active even though the .Net application has closed and disposed of all connections.
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Jul 31, 2010
I try to make one application that will first show login form (with textbox for username and password) and when I press login client application send request to server side application that make SQL query (local) and return some values and that values will be listed in main form. I try something with TCP chat source codes but I don't manage what I want.
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Sep 2, 2009
a small question: what is the difference between sync and async connections in a tcp/ip client/server application?
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Dec 9, 2009
How do I create a Login Verification routine (Login Form) in vb.net . i have an windows application with login form contain user name , password , ok button and cancel button .
as this one:
Imports System.Data.OleDb
Public Class LoginForm1
' OK button
[Code].....
but i want to run my application from desktop and will get confirmation if the user name and password correct by checking them in MS Access Database in the server.
so the the application in the desktop and the tabel of user name and password in the server.
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Feb 6, 2011
Office 2010; Windows7; Visual Studio Basic 2008 (VB.Net)
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The following strSQL string is not working as expected when run in VB.Net Interop to Access: (NOTE: The line-feeds " _" are used below are for reading only - are not in actual code line)
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Aug 18, 2009
I have simple code that connects to Sql database... (well it doesn't)
VB
Dim objConn As New SqlConnection("Server=localhost;uid=***;pwd=***;database=***")
objConn.Open()
ERROR MESSAGE:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)But looks like something is wrong with "localhost" thing. Any help? Where can I get name of (my) server?
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Mar 16, 2012
This may have been answered but my search hasn't found what I was looking for. Basically, I am developing an application which allows the user to build a query at design time, i.e. for users with no prerequisite knowledge of SQL The application thus far allows the user to select which table(s) from the database they wish to start querying (I won't go into the details of the rest for now)
My confusion is this; I already have the connection to the database in a subroutine which obtains the schema information and filters it to display only the available tables within the database, which then compiles the data into a listbox, here is that sub:
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Jan 19, 2012
how to get this login to work if i add a field in to my database called UserTypes "Admin" "Normal" if they are admin if will display cmdAdmin and if they are Normal if will hide cmdAdmin this is the code i have currently?.[code]
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Aug 11, 2011
I've made a WCF server and tested and debugged it only on localhost so far. I wanted to measure its LAN speed and couldn't get it to work. The client returned a EndPointNotFoundException. Below are the configurations I use on the client and server.[code]
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Aug 17, 2010
I'm interested in creating a simple localhost server that can serve dynamically generated data from a ListView into a formatted web page. I'd also like to "control" or otherwise have the program execute functions based on what links are clicked.I've been searching for solutions and it looks like it would be a fairly simple task but I'm not sure exactly what the best way to go about this would be.
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Dec 13, 2010
I have the MySQL connector dll for .net, but am having problems.
1) When I go to phpmyadmin on cpanel, it says the server is localhost. I am confused by which IP i am supposed to use to connect, as im pretty sure just localhost will not work.
2) When connected, can i use credidentials from an account already made to access the database, or do i need to use the admin credidentials?
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Dec 22, 2009
I have a database setup on my localhost hosting [C:xampp] and I want the mysql server from that to connect to the my one on Visual Basic 08, wait no - the other way round. I want Visual Basic 08 to connect to my database which is hosted locally via my computer.
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Jul 25, 2010
I have a server which has around 300+ users on it. Though the problem is that its coded in VB6, and if somebody has a bad ping, everybody has a bad ping. I need a tunneling server which will tunnel the incoming and outgoing connections and make there ping appear to be 0 in the server. Client to Server, Server to Client.
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Oct 28, 2009
I have created a test application to display data in a datagrid, using the Dataset Wizard per the help. All fine - data is displayed.
I then added insert, delete and update queries by selecting Edit Dataset with Designer, selecting the table and adding a query for each action via the TableAdapter Configuration Wizard. In Advanced Options, all boxes are checked, and on the last screen of the wizard it says it has generated SELECT, INSERT, UPDATE, DELETE statements, table mappings, Fill, Get and update methods. The TableAdapter shows four entries: Fill, GetData(); DeleteQuery; InsertQuery; UpdateQuery. On the DataGridView Tasks page, Adding, Editing and Deleting are checked and the data preview shows data.
When I run the application, I can update, add and delete data, but this is not saved.
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Feb 11, 2010
I want to connect To Database sql server via Network [code]...
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Apr 1, 2009
i'm trying to make a login form connected to an sql server database. my data base has records like this:
fname - lname - minit
each name in a separate column, and i wanted to use the name as the login username, so in the dataset designer i made a new column and concatenated the names together like this: lname+fname+minitbut at "Dim dr As SqlDataReader = cmd.ExecuteReader" i get this error:
"Invalid column name 'username'. Invalid column name 'username'."
i'm asuming that's because username doesn't actually exists in the database, only in the dataset.is there a way to get that to work with out the username column actually existing in the database?
Imports System.Data.SqlClient
Public Class LoginForm
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
Dim cmd As SqlCommand
[code]....
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Sep 29, 2009
I just can't run any of Data sample codes that come embedded with VS2008. I'm trying running CreateDB example but I can't make it work.How can I configure Data Connections? [code]
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Jan 18, 2011
My click-once app has english and spanish content. In development, it runs fine with the two resource files I have - named multilingual.en-US.resx & multilingual.es-MX.resx accordingly. When I publish it looses these resources for referencing.The files reside in the root directory for the app.
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Mar 2, 2009
this is used to add upon details of username and encrypted password in database
Imports System.Data.SqlClient
Imports System.Security.Cryptography
Imports System.Text
Public Class Form1
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Jul 25, 2010
will SQL statements that work in Compact SQL Server also work in the Express Edition of SQL Server?
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Sep 30, 2009
I have a little Windows Form application that uses sql database.My application works on my computer, but when I install the app to another computer I get this errorSystem.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was noccessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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May 3, 2012
I am having trouble in creating a login form in my windows application.If i create a login form with its database local to the system ,it works fine .But my requirement is that the database is placed on a remote server so that the login is secured.When the user tries to use the application he first needs to login.When he puts the username and password in the login form it should send the data to a remote server for authentication.
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