I need more then 1 (MS-SQL) connection string/configuration, depending on the current running configuration (Development, Production, offline etc.)How could I declare these connection strings in advance (Proj.Settings) and tell the application which one to use without the need to compile the program.Using a command-line argument is an option but still unconvenient.I know .NET/ASP has an 'outside' non-comipied config file used by the application which you can modify.
How 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"
I am developing a program to manage inventory and accounts. different clients need different databases like oracle/sqlserver/mysql etc. i want to make my solution work with all these database servers by only changing one string value . i want to declare like :
I am trying to build a user control that will do exactly what the SQL 2005 Connect to Server interface do, eventually create a connection string and store in a app.config file. It should allow user to select server type, server name, authentication, user name and password. It should also automatically load available servers and domain login by default.
I got this Error Message while I try to preview the records in Dataset Designer:"The connection string could not be found or Data provider associated with the connection string could not be loaded"
i already write below coding on my code site.. If rdb1.Checked = TrueThen MsgBox("You will depart in the morning at 10.00am") ElseIf rdb2.Checked = TrueThen MsgBox("You will depart o the evening at 04.00pm") EndIf when user choose..ex:destination..user still can select both radiobutton.. i want the radiobutton can be select one only,
i am choosing a flight that i want and then the system will go tho another form where it will show the details about the flight in datagridview..after we choose which flight to take there is 2 combobox where u can choose hw many adult and hw many child...at last there is a calculate button where it calculate the total price...the peradult price n perchild price will b stated at datagridview....the total price calculated will b displayed in a textbox...
this is my coding Dim adult As Double Dim child As Double myconnection = New OleDb.OleDbConnection(myconnectionstring)
how to suppress the dialogue of "Choose a digital certificate" in VB .NET when opening a HTTPS using Webbrowser control?I am writing a program to authenticate on some Firewalls via HTTPS links opened in a webbrowser on VB.NET form.Every time, that window pops up showing an empty list, asking for OK or Cancel, pressing any button on the dialogue, closes the it and continuing by authentication.Is there a way to automate accepting/closing/suppressing such a dialogue in VB.NET?
After display list of data in combo box, next I would like to choose the data from the combo box and display all the information from the chosen data to texboxes , the data from combo box was link from my database (ms access).
I have a problem with a combobox. I have a form (with information about clients) with textboxes binded to a dataview. One of the columns in the dataview contains a number that tells me what kind of client it is. I don't my users want that my users have to fill in a number in a textbox, but I want them to choose a item from a combobox. De selected value should be the value that is actually saved in the database.
This is my Dim cmd As New SqlCommand Dim dr As SqlDataReader VerbindingMaken() cmd.Connection = cnnVraagbaak cmd.CommandType = CommandType.StoredProcedure [Code] .....
De Datasource is the information in my combobox. With Databindings I'm trying to bind it to my dataset (or view, that doesn't work either) with clients. Every time I get a NullReferenceExeption. The moment I remove the line cbo.DataSource = dsRelatie.Tables("Relatiesoort"), I don't get an error, but it doesn't work either.
That dataset is filled (I've checked) and also the derived view. The column Relatiesoort exists. What do I have to do to make it possible for my users to choose an item from a combobox and save the selected value to the underlying dataset?
I have two List(Of String).Both Lists contain duplicate strings. I want to pick out all the strings which are contained in both the Lists. For example:
I 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?
I'm developing an app in vb.net (visual studio 2008). I have a Teradata back-end that will be supporting multiple users in a production environment. I need to use variables in the connection string as the user/pass will be changed every 3 months.
For the gist of the application:
In it's most basic form - I have a search form which works correctly - it pulls results into a listbox and the user then double clicks the list box which will then open a form that is bound via table adapter to the back-end table (Teradata). My connection string is fine everywhere in the application. My problem is using a modified connection string for the "fill" function of the table adapter once the form is opened.
I'm using the code below for the on-load event and keep getting an "invalid connection string" - again, the connection string works fine everywhere else in the app, and the variables etc... are working correctly.
Private Sub adaptertest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim DBConnStr As String = "Provider=TDOLEDB;Data Source=TDDEV;Persist Security
I'm facing a problem after installation any software setup that has a database in access(mdb file) How to I transfer file path in our connection string.
I am trying to connect DSN from my VB 2008 project. When i try using myoledb.connectionstring="DSN=myDNSname" I get the following error message An OLEDB provider was not specified in the connectionstring.
I have been trying for days now how to create a process to the user to easily create a connection to any installed data types they have installed. I have found an example right inside vb2008. I never use this because I code my own connections, but this would be real nice if I could include it or duplicate it.
Why doesn't an exception get thrown when this function is called when there is no ConnectionString set for the Connection? I just spent 15 minutes debugging and staring at it and finally figured out it needed the connection string. Shouldn't an exception get thrown?
Friend Function GetValues(ByVal TableName As String, ByVal FieldName As String) As DataTable Dim cn As New SqlConnection Dim cmd As New SqlCommand[code].....
I am currently working on a family project which is based on "Who Wants To Be A Millionaire?" show. There is a huge diffrence between the show and my project. My project is a christmas edition and the goal is not to get money or something, since I will not add it... Erhmm... Let me get to the point. I have already designed a layout and scripted some things. I have about thirty questions but I do not want them to always spawn in the same array, if you know what I mean. I want the program to randomly choose one of those thirty questions and NEVER choose the same question in the same program run. By the way, there are four options on my project: A, B, C and D. I have got everything, I just need a code.
I'm testing database programming in vb.NET 2008 at the moment and try to find a way to use a database connection in different forms, so e.g. I put the the database-connection-component into one of the forms. I know, I could access it by e.g. form1.databaseconnection.xxx, but is this the best way or can I "put" the connection into something more abstract which all forms know about?
In the first form I will load Tabels in the secound I want to open the DB Connection. I wrote a Class which enables me to open and close the connection
I am writing a program for my A-level coursework But for some reason I got this build error this has never occurred to me before, I have no idea why I can't use string for the name of my form.
I have a VB Solution with a dozen forms trying to implement invoice system.My main form (Say Form1) only has a design to create , Edit or Delete Customers.My form 2 will be opened if Create button is clicked. In my form 2, I have textboxes where user can enter Customer details and click on SAVE. My doubt is here....On clicking this SAVE button in Form 2, I want a INSERT command to happen on the MSAccess's Database table called Customer (which I have already created... this table does not have any records as of now). In my form 1, I added a MSAccess Database with a Connection String. In my Form1's code I have code like this[code]...I got this piece of code from this link [1]: vb.net - sharing mdb access connection among multiple forms/Now, I do not know what more code does this require to INSERT records from my text box into the Customer table's fields.
I'm starting to put in a database into my application, however I'm drawing a blank on how to share a database connection among the dozen or so different forms in my MDI application. I'm assuming this has to do with interfaces or something but I can't find any relevant examples anywhere. Can someone help me out? Ideally what I'd like is when the app is loaded up there is a call to a function in the forms loading area which establishes a single connection to the mdb, that I can then call via any form so I don't always have to open/close connections everytime I need to update the db?
Here's a basic example of the mdb database access code I've got working:
Dim dt As DataTable = New DataTable() Dim OleDbTran As OleDbTransaction = Nothing Using connJET As OleDbConnection = New OleDbConnection("connection string here...")
I'm creating a database management program and I just got started. I will be using a login form and a form that is the management part. The MySQL connection will be created on the login form and I was wondering how to get it to the other form. What I thought I should do is create a public mysqlconnection property on the login form and just use it from there. I don't think I have ever known the correct way of transferring a mysqlconnection over 2 forms.
