I create project in my pc with vb.net and sql database when i tried to run this project to another pc there is error occurred that the connectionstring has not been initialized. I really troubled this from last one week to solve the problem. how to change the connectionstring on client pc at runtime or any other way to create a connectionstring that has auto detect in any pc where the program is installed.
View 5 RepliesIm writing a app using vb.net, which has multiple front ends e.g a windows service and a windows forms app. Ive got all my business logic and database stuff compiled into 1 project (producing a dll) then the different front ends as different projects calling the dll.
In the backend / dll project Im connecting to 2 databases using app.config to store the connection strings and DataSets / TableAdapters. This all works fine .... Until
When I deploy the windows app, it deploys the exe and the dll produced by the backend project. when its installed on a client PC, Im need to point the app at a different db server and therefore need to change the connectionstring, but its packaged up in the dll.
is there any way I can use a settings file within my windows app (therefore deployed with my windows app) where I can define the connectionstring, which onload gets passsed through into my dll, so the backend connects the correct database. I know how to pass standard settings through (strings etc) but the my.settings.connectionstrings seem to be readonly.
I am kind of an old 'newbee' at this, so bear with me for a moment. I am developing a windows forms application in Visual Studio 2010 Professional that connects to a remote database (MS sqlServer 2008 R2).To speed up development, I configured a DataSource and used the data objects associated with it. In VB6,
the data source could be assigned to the data objects during runtime using a variety of different runtime database connections, ODBC, ADO, ...
I have been unable to find a similar method with the VS2010 Visual Basic DataSource and underlying TableAdapter, BindingSource, BindingNavigator, down to the individual ComboBox and assorted other bound controls. It's convenient to have the integration, but I've got different users with different permissions, The long and short is that I'd like to be able to assign the data source during runtime operation, at least to the connection string level.
I know below code causes an error since "Property 'AAConnectionString ' is 'ReadOnly". What other choice do I have to assign a value for a user ID or a password with a value of textbox by coding?
My.Settings.AAConnectionString = "Data Source=bb.allgood.com;Initial Catalog=aadb; Persist Security Info=True;User ID=aa123;Password=aa123"
I am creating an login page connected to a database. I am using access ODB. the problem is, if the user makes an wrong input, and the invalid data message box appeared, when typing the data again, and press ok, the following exeption occured:Not allowed to change the 'ConnectionString' property. The connection's current state is open.[code]
View 3 Replieshow to traverse all TableAdapter in xsd file?
I want to change default connectionstring of all TableAdapter objects in xsd at beginning of application,
I'm writing an application for a device running Windows XP. There are 2 versions of the device and each version has its own API to communicate with the device's software. The application I'm writing needs to pull the same data from the API. My question is how to write a application that will detect at runtime which version of the device it is on and use the appropriate API.
I've created an interface containing all of the common methods and also classes for each device that implement the interface. Now I need to know how to activate the correct one at runtime.
Public Interface IAPI
Sub InitializeMachine()
Function GetActiveProgram() As String
[Code]....
But my application sometimes needs to acces the registery for some special functions and is there a way to change the permisssion on runtime to 'requireAdministrator' with a button or something?
View 2 RepliesI am trying tp update app.config setting on button click.But I am still not able tp update the settings.Here is the code
Dim config
As Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
[Code].....
I have an application that connects to a database on sql server. I want to make it possible to use another database that has the same structure as the one im using now (for example accounts2007 and accounts2008).
There is a form for login where user have to choose the database that he wants to use.
i have created a builder and stub [URL]
Can i change the icon of the created object. not at the form the icon at exe that you can change under my project.
So with this method can i send text to the other app...any one know how to change icon....
Can i upload a resource at runtime?
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Now i am using iframe.attribute("src")="..Pages/page.aspx"....In Chrome and ie this one is working.....but Firefox not?
I'm writing a Windows form application. I created a SQL database called myDB.mdf. The database/form connection was created using the wizard provided by VS2008. The connection string, table adapter, dataset, etc were all generated automatically. In runtime, I copied the database to several folders and I want to the application to connect to them one by one and do some data manipulation.
Here below are the relevant code I'm using:
Namespace My
Partial Friend NotInheritable Class MySettings
Public WriteOnly Property RunTimeConnectionString() As String
[Code].....
I have done this below program keeping the picture box property dock=None.And the below code works fine.
Imports System.Drawing.Drawing2D
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
i.e Dock=Fill And i stretched the form in the design mode... now the circles in the image are not proper...I want my program to work with the Dock property set to Fill?
I have multiple urls to the same webservice, each with it's own "token". I need to switch from one url to another during runtime. I have planned to do this by storing my URLs inside a XML-file, and then read it, copy innertext of an element and overwrite the WS url in my app.config. My app reads and write to xml just fine, it is when I actually use a method from the webserivice proplems start to appear.
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I am creating a program that will be sold as a subscription. I am trying to decide how to prevent users from passing the program to others without purchasing it. I was thinking that on the very first run, the program could pull the MAC address from the computer it is run on, and create a constant at run time. This constant is then hard wired into the program and is used for comparison every time the program is run thereafter. If the MAC address do not match, it is on a different computer.
How do I recompile my .exe to include a globally declared constant used for comparison? And how do I use this variable throughout my program?Or is there a simpler way to create my program to require Key Codes for renewal once per year?
I did something that when I now load my program(VB 2008), my controls; combo boxes, buttons, progress bar, etc. look like they are from VB 2005 or like VBA buttons, not the rounded edge buttons of 2008.
They look like vb 2008 controls while I am in design view, but then they change their style when I run the program..
I am trying to change the language my WPF app uses in a click event but it doesn't change.[code]
View 1 RepliesI'm trying to change the existing 10 labels color on my form at runtime they are named this way (label1,label2,label3...label10) however i haven't bin able to successfully do it so far. Here is the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim LabelArray(10) As Label
For x As Integer = 0 To 9
Dim strLabelName As String = "Label" + x.ToString
[Code] .....
I'm trying to figure out how I can change a ListView's "Large ImageList" to another one at runtime. For example I have it attached to my Icons_64x64 ImageList right now but would want an option to switch it to Icons_128x128 at runtime. Hope that makes sense and someone has an idea out there. I haven't been able to come up with anything at all.
View 7 RepliesCan I change the app name at run time[code]...
View 4 RepliesI'm writing a windows form application using vs2008. I need to connect to different SQL server express database files during runtime. There is a "how to do" video showing a technique for this
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and then in the Form1_load sub and before calling the data adapter to fill data, insert codes below:
Dim strConnectingSting = NewConnectionString
My.Settings.RunTimeConnectionString = strConnectingSting
The method works but only for the first database. I found once adapter.fill is called and the connection to a database is established, the connection can't be changed.To do what I want, I have to create a startup project to call my main project. When I want to change connection, close the main project and start again.
I'm making a custom control that can be dragged around and it is semi transparent. I need it so that while it is moving (the mousemove event) that if it intersects a control that its parent becomes that control. I tried to have it iterate through all the controls and if control.bounds.intersectswith me.clientrectangle then me.parent = control type thing, but it did not work.
View 1 RepliesI have a font called MyFont.ttf in resource and its build action is embeded resource.I'm doing this code in formLoad event, but it is not working...
Dim fonts As New PrivateFontCollection()
Dim asm As Assembly = Me.[GetType]().Assembly
Dim stm As Stream = asm.GetManifestResourceStream("Demo.MyFont.ttf")
[code]....
Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles MyBase.Load Me.Cursor = New Cursor("C:WindowsCursorspen_m.cur") End Sub End Class
View 2 RepliesI have an application in wich I use a Microsoft ReportViewer.
Also I have two buttons inside the form, close to my report viewer. First button is named zoom_minus and the second button is named zoom_plus.[code]....
I tried to change the toptext of my tabpage and the title of a groupbox with the following code.
View 4 RepliesI have a different thread on this, but I bumped it and I think it's been forgotten about. This is what I have:
[Code]....
This is my code atm and it wont change the interval at all[code]...
View 22 Replies[code]...
I'm trying to change the treeview image at runtime, i'm trying to apply the above code but nothing is happening. the goal is that i have an image i want to change it to another image at runtime.