Changing The Connection String?
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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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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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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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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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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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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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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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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Sep 16, 2011
i am making a l337 speak generator..Lets say I input bob12321 (although i can input anything)I would like to make the program replace the "b" with either [code]How would i do that... I tried string.replace - but it says character A cannot be turned into long (on a seperate word)[code]
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Dec 1, 2010
I am reasonable new to programing and have ventured in to using VB.net after creating macro's etc in excel, as this seemed to be the easiest transition into the world of programing.I am creating a application to work with an access database and before I submit the forms textboxs to the database, I check to make sure each field is filled in and if it isn't then I highlight the field by changing the label back colour to orangered.
What I have is a bunch of textboxes and a label above each saying what the field is. so for example the textbox name is txtBox1 and its label is lblBox1, txtBox2 - lblBox2 and so on.So what I thought I would try and do is, as the user leaves the txtBox after editing, the label background colour would be changed back to transparent.
As I have multiple txtbox's I thought I could do this using sender to get the name of the txtBox on leave, strip the first 3 letters txt and change them for lbl cast it as a label, then change the background color but I cant seem to convert my string to a label control. can someone help me with what am i missing or not doing.
[Code]...
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Mar 4, 2009
character manipulation in a String.
How do you change characters in a particular string and set them to a particular value.
For eg. I want to change the third character of the string "hello" to Y = > i get "heYlo".
I tried using the Chars function but it says that the function is read only.
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Apr 16, 2012
How can I change font color of a string. I set the fore color properties of the label holding the string but seems that only works when the string is displayed in that label. Is there a way of setting the color of a string itself such that it displays any where with that color by default. I am actually sending this string as email but wanted to format it in a way that it will display differently however it doesn't.
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Dec 30, 2009
I am working in vb2008. I would like to change the color of a piece of a string that I am concantenating together For example
Dim string1 as stirng - "abc"'set to black
Dim string2 as string = "def" 'set to green
Dim string2 as string = ghi" ' set to red
[code].....
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Mar 20, 2011
I'm making a simple text encoder for my chat prog. and I need it to cycle through each character and replace it with one please give me an example code of changing all A's in a string to B's and change all B's to A's. So abab would come out baba.
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May 14, 2010
I have some web-radio site and i want my program to record the song name from the webpage, i dont really know how,
i made RichTextBox and i made a WebClient....
I dont know how to make it look for the string that shows the name song.
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Feb 26, 2012
I am working on a project that I scroll from one screen to another.
A particular string I have 2 variables that can be changed. If I stay on this screen I can change either variable just as I need
however when I change to another screen then return my string is 1 digit longer and when I wish to edit this string my program fails because the string isn't the expected length.
A portion of my program follows....The Y6 is just a counter. The MA is a conditional control.
ElseIf _
Y6 = 4 _
And MA = True _
[Code]....
Delete 0-27 then determine whats there "NC" or "NO" and simply change it. But again when I leave this particular screen and return my text length is no longer 29 charactors long, it is now 30 charactors.
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