C# - Changing Connection String In DLL That Is Included In Executable Projects?
Nov 10, 2010
I have a project that is executable and I created a dll, which includes commonly used datasets among projects (DLLforApp and App). [DLLforApp]a separate project from App but in the same solution.this is a class library project which creates a dll file this has aconnection string which is LforApp.Properties.Settings.Default.ConnectionString[App]another project in the same solution.this project includes a reference for a set of datasets.. which is DLLforAppThis project also has a connection string which is the same as DLLforApp
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Dec 15, 2011
I'm trying to change my connection string to w/e the user wants. After a few tips here and there, this is what I've come up:
1: In my settings I've added - Name(login), Type(String), Scope(User), Value(Nothing)
2: Here is the code I'm using
Private Sub LoginForm1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Here I'm checking if the login in my.settings is there
'If not, I'm going to let the user choose what database
[code]....
The error I get is: Format of the initialization string does not conform to specification starting at index 0.here -
Dim con As New OleDbConnection(My.Settings.login)
When I have my con equal to when I added the datasource from it works.
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Jan 18, 2012
im currently working on my thesis and i just wanna know how to avoid changing connectiong string? we are 4 members in a group each time that my other groupmate try to run our system in their own laptop/desktop they always change the server name. i wonder what if we implement our system in any computer? how were going to handle that?
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Dec 31, 2010
For example i have form within the application which shows the connection string in a text box so the user can change it to there database but i cant work out how to save the new string to the connection string within the app.config file
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Mar 30, 2009
I have specified my connectionstring in My.Settings
But when I want to change it at runtime I get the error: Property connectionstring is read only.
Is it possible to change the connectionstring at runtime???
I used the following code:
[Code].....
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Mar 26, 2011
I developed a winform application and I want to send the .exe file to someone else. That means that my datasource for my connection string is not the same any more
Dim da As OleDbDataAdapter
Dim dt As New DataSet
Dim objConnection As OleDbConnection = New OleDb.OleDbConnection
[Code]....
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Mar 2, 2006
This is regarding a windows app in Visual Studio 2005, a VB Windows application.'ve stored a connection string called strSQLConn in My.Settings. I'm trying to change the Server in code. I set a string variable called strConn to a new Connection string. My.Settings.Profile2006sql = strConn
This produces an error saying that My.Settings is readonly. I'm missing something basic here.
I don't know if this is the best way to change a connection string to toggle between a development server and a production server. My understanding is that if the setting Connection string is changed it will be used as the default for all the table adapters in a strongly typed dataset. Is that the case?
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Jun 2, 2009
I have two seperate databases, one is production the other is test. Before LINQ, I could simply change the connection string to swtich db's. However, the string is read only, and I have no way to change the string.
How can I change the Connection String programmatically?
Edited for Clarity
Im using my.settings to store all of this inforomation
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Feb 19, 2009
When a project is built in VB, the executable file is created in the \bin\Release folder. Apart from the executable there are other files that get created:
MyProject.application
MyProject.exe.manifest
MyProject.pdb
MyProject.xml
Are these files required to run the executable? Is having just the MyProject.exe file in the setup enough? And what are these files for?
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Jun 21, 2010
I've created two forms of which two separate datasets/tableadapters were created by adding a datasource and dragging and dropping the fields onto my form.I was testing the program using a db that was located on my local drive. Well after publishing the app to the users machines, I noticed that the binded information was still being pulled from my local machine and not the database that the user is working off of.I've set the connection modifier properties for both tableadapters to Public, and I have written the following attempting to change the connection strings:
Private Sub btnSaveSettings_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSaveSettings.Click
Dim pap As New frmPap
My.Settings.dbLocation = txtSettings.Text
[code]....
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Jul 31, 2009
When a project has been published the file that is put in my start menu is an application reference. How do i get hold of the actual executable file so i can post a demo?
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Nov 10, 2011
How do we overwrite config file at runtime. I have four config files for DEV, TEST, UAT, PROD. Based on user selection I need to overwrite the default config file completely with one of the selection specific config files. These config files not only have appsettings section, but also has complex cutom sections and subelements with lot of attributes. I need to overwrite and refreshsections dynamically at runtime. I know there are so many articles on editing appsettings sections. But I want to completely overwrite the entire file.
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Aug 25, 2009
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"
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Apr 1, 2009
In visual basic , when you create a label in form view (via click and drag) is it possible to make the label have both a string and a variable included in it?
*
turns=1
label1.text = ("Turn:"(turns))
*
for example , so that label 1 will display
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Mar 11, 2010
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"
Here is my dataset.xsd code
<Connections>
<Connection AppSettingsObjectName="MySettings" AppSettingsPropertyName="loginConnectionString1" IsAppSettingsProperty="true" Modifier="Assembly" Name="loginConnectionString1 (MySettings)"
[code]....
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Feb 5, 2010
Is 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.
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Sep 3, 2011
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?
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Sep 29, 2011
I have a VS 2008 .NET application which connects to many tables within a SQL 2005 database in order to fill controls using multiple DataSets and TableAdapters.how to appropriately change the database connection within my Visual Studio .NET 2008 application in a manner that will provent having to modify the datasets and tableadapters. Will changing the connectionstring shown in the DataSet/TableAdapters properties render them unusable?The tables within the production database are identical to the tables in the development database.
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May 17, 2012
I have a program that outputs a file. I want the user to be able to just double-click the output file and launch the program, just like Word and Excel. In Word for instance, one doesn't necessarily have to open WORD then click on File--> Open and locate another Word doc. He can just go to the folder and open the Word doc. I want to implement the exact scenario in my program.
So far I have tried creating TextFile and added it to the Resources. On FormLoading, I simply I stream-read the Resouce file, but I can't write to the Resource on FormClosing, since the Resource is ReadOnly. Also, the Resource is built & compiled so I suppose you can't add anything to it at run time.How you lunch an output file without launching the Executable program that created it?
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Jun 1, 2009
I have an executable that I was able to get working on all XP machines by registering all the .dll's associated with it.On Vista, however, I go through the exact same registration process but right when I open the executable it goes to a "WindowsApplication1 has stopped working" dialog. I registered the DLLs in the SysWOW64 folder. I also ran Dependency Walker which came up with IEFrame.dll as flagged, don't know if that is relevant though.
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Jan 19, 2011
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
[Code].....
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Aug 26, 2009
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.
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May 17, 2010
I have a connection string in my app.config:
Code:
connectionString="data source=.sql2008 ;Database=Database1; Integrated Security=FALSE; Persist Security Info=True;" />
How do I change to another database (one of many) without using multiple strings? Can I change while the connection is open?
Code:
Dim myConn As New SqlConnection(System.Configuration.ConfigurationManager.AppSettings("ConnectionString"))
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Jun 16, 2009
I added an .xsd file to my project using the IDE After that, I right-clicked and chose Add->Query I chose a dummy connection and then >SQL statement->Update Then I changed the Query's modifier to public
Dim ta As New dsCC2000TableAdapters.UpdatesTableAdapter
ta.UpdateQueryTest()
The problem is... I can't seem to modify the connnection object at runtime (by using ta.connection = XYZ) It doesn't show up on ta variable's intellisense!
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Feb 9, 2012
I added an .xsd file to my project using the IDE After that, I right-clicked and chose Add->Query I chose a dummy connection and then >SQL statement->Update Then I changed the Query's modifier to public
Dim ta As New dsCC2000TableAdapters.UpdatesTableAdapter ta.UpdateQueryTest() The problem is... I can't seem to modify the connnection object at runtime (by using ta.connection = XYZ)It doesn't show up on ta variable's intellisense!
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Apr 27, 2011
i making a website for trading in which trading feed coming from a source in excel sheet. i have to show data from excel sheet to gridview. but when i make connection it will lost due to rapidly data( in excel sheet each cell change value 1-3 times in one second).Am using Ajax Timer of interval 1000.
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Mar 18, 2012
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.
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Apr 6, 2012
I've written a little library to include in other projects that does some string parsing. One of the items I'd like to access as a property of the class is a string array.I can't seem to get the syntax right though. Even though the little project will build - when I add the .dll to my other project and create a reference to it, it gives me an error - argument not specified for parameter
[Code]...
As a matter of fact, I thought in VS 2010, you didn't have to use the get, sets anymore, but I can't seem to find the right example for what I'm trying to do.
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Mar 15, 2009
Removing projects from VB2008 start page recent projects list. The above list is getting clogged. How do I remove items from this list?
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Feb 18, 2012
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].....
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