VS 2008 - How To Dynamically Change String To Handle Connections
Apr 8, 2009
I have a need for an application with a SQL database back-end. The application will run on a laptop and will therefore be used both on and off the network. I can write the app and I can link it to SQL over the network. I also know how to dynamically change the connection string so I can handle online/offline data source connections. Where the data can be stored on the local client? I'd like the data to be held in the central SQL DB and to automatically copy to the laptop upon connection to the network. The client data source is read-only and will not upload back to SQL. I've seen XML mentioned but that looks overly complex.
I am using vb.net and SQL server 2005 I have a project with database classes which are generated from database objects. That is I add a dataset to the project and drag and drop a database object onto it. The problem with this is that I have to give a connectionstring which is stored in the code. This is ok while developing the application. But runtime I want to use another connectionstring, both for security reasons and because each user of the application will correspond to a database user (SQL) and shall have a corresponding connectionstring. Is there an easy way to do this without having to restore to plain all datasets and do everything myself?
I have some Tables in an Access DataBase with the same structure and different names. I wish to use one only form (Page) to view data. I must change the name of the Table contained in the SelectCommand but Im not able to do so.
<asp:AccessDataSource ID="AccessQuadent" runat="server" DataFile="~/App_Data/QuaAdmin.mdb"> SelectCommand="SELECT * FROM [QuaGen] ORDER BY [FileDate]desc">
Is there a way that a label's text is updated each time the input of a textbox changes? The textbox and the label are on the same form. I looked everywhere but didn't find a solution that worked.
I have a number of user control dynamically added to a page, and user interaction with these dynamically added user controls need to be handled by the control's parent. Is this what is referred to as "event bubbling"?How do I do that in VB?
Am on creation of touch screen UI system.And am generating button for selecting products
Under certain category.
--> array of button creating dynamically And placing in TABPAGE when user selects Tab for category. The button will be created with the name of products, Under the category selected.
{ 'the way am creating controls. mybutton(j) = new button() mybutton(j).top = 100 }
How can i get the Click event of those buttons-( in the array)....??
I have the user control that is loaded dynamically. When the user save the data by clicking on the Save button, a raise event is passed.
Public Sub RaiseCloseEvent(ByVal sender As Object, ByVal e As System.EventArgs) RaiseEvent Close(sender, e) Debug.Print(String.Format("The control {{0}} was closed by {{1}}.", Me.Name, sender.ToString)) End Sub
In the save button I have called the RaiseCloseEvent as follows:
RaiseCloseEvent(sender, e)
Now, how can I close the user control form? Any Idea? I have used VB.Net language.
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.
I just want to know, What parameters or attributes should be taken in connection string so as to handle high traffic enterprise applications? Like in general we use server, initial catalog, userid, passwd. Some times we add timeout , and in some scenario pool etc. But i don't know what attributes should i take in as my common practice apart from above.
I need to change the connection string of all tableadapters at runtime, can anyone tell me for the best way to do it?I have a conection string in my settings, that i can't change at runtime (application scope), i could go to dataset.designer and change the value to a new variable but i don't think this is a good method.
what is the best way to handle on selection change when the form loads?My problem is, the index change while te form is being loaded, which then in turns tries to run my code.Here is the FormLoad Event, that gets an xml stream from the web, dumps it in a dataset, then bind to datagridview.
Private Sub frmOrders_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Using reader As XmlReader = XmlReader.Create(New StringReader(XMLDoc))
having trouble with a for loop I made to search through an access database till it finds a key card value that matches the current. If it doesn't find one its suppose to open a form that says it not accepted and then its suppose to close.
If e.ProgressPercentage = 3 Then fCardConnected = True Dim test As String
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]
I'm wondering if its possible to log who is connecting remotely to my local hard drive and also log what they do if possible?A lot of people access my hard drive and im curious to what they do while there.
I need help getting a connection to a database from within the windows 7 environment. The code currently works for windows XP flawlessly.However in Windows 7 i get an error about a resource not being registered on the local computer.
I have written tons of websites with PHP and MySQL, now I want to combine a website with a program on the computer.I have searched google, but I cannot find a good tutorial on how to use MySQL on a server with Visual Basic.NET I need to connect to my MySQL database, read data, and write data.
I am working on a site where the meta tags are set in a Masterpage in a section using runat="server". I can update the title, description, keywords, etc... through properties in the Masterpage code-behind, but how would I add or edit non-basic ones such as
I have tried the following, but it always returns 0 for the count.
Dim header As Web.UI.HtmlControls.HtmlHead header = TryCast(Me.Master.FindControl("headerIdName"), Web.UI.HtmlControls.HtmlHead) Dim count As Integer = header.Controls.Count
I have close to 10,000 serverside pages, all of thse use the same stylesheet. I have created a new serverside page which is like a dynamic menu system to help find specific pages from the existing 10,000 pages quickly and easily.
The problem is, that if the serverside pages are accessed the old way using the old menu system, they should retain their old stylesheet. however, if they are accessed via the new menu system, they should use a new refreshed stylesheet.
I'm trying to find a way to change the name of a text box if the name of the text box is first declared as such:[code]I tried the statement: Name = "SBox" & My. Settings. Row Countx but maybe this is wrong.To be very brief I'm trying to resolve this to under the following scenario:
1. Add a new text box to a tab page when user selects "add" button.
2. Each text box must be assigned a unique name
3. Data entered in each text box will be then be saved in my.settings (i.e., for each text box, there will be a corresponding variable/name to hold its text value)
I have one web service reference in my project but it has two url one is live and second one is test,how to switch between these url dynamically in vb.net[code]...
I made an application that was used by one person only, but now my boss told me that this application it'll be used by all company.I made the application with a dataset that have the datasource in a access database that's installed with the application. The user can add, delete and change values in the database, so i had to put the database in a sql server to everyone see the changes.There's someway to change the dataset datasource/connection string?
I have a label, let's call it LblA. I have a SqlDataSource, let's call it sds. Now, I have selected out and managed to get specific values using the select function. I want to set LblA's text to the value selected out of sds. I need this to occur every 5 (or as many as I specify really) seconds. I orignally used a timer object, however, for any of you who have used the timer object before, it likes to refresh the page, this makes it very hard to navigate off of the page; not only that, it's sloppy. Does anybody know a way to easilly update LblA's text from sds without refreshing the actual page.
I've read around and came to the conclusion that I need to use ajax, err... jQuery. However, I really don't know anything about the two except that they are both Javascript libraries? I need a simple way, you might even have to explain it to me like I'm an idiot.
