C# Database Connectivity Getting Into Mess
Jan 31, 2011
I'm just starting development on a new website and am trying to do it correctly, that is, with a DAL and not with queries in code which I had before. I understand the principles of it all, but I am finding this DAL with table adapters and wizards that do too much to be really messy to work with. Does anyone have any recommendations on what I should be using instead and a link to a tutorial on how to get going quickly with it?
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Sep 2, 2010
Can we perform Database connectivity without using ado.net?
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Jun 29, 2010
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Feb 14, 2011
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Jul 20, 2010
I have a gridview which is placed inside an updatepanel and a button outside the panel. And each gridview rows contains a radio button with 2 options. When i clicks on the button, an asynchornos post back occurs and I am vlidating the radio button values inside serverside button_click method, and shows an alert if any of the radio button is not checked. Everything is working fine till this point. Then i have introduced a GridViewHelper class[URL]for grouping the categories and displaying it as a group header. This also working fine when the page is loaded for the first time. For creating the group header, below code is placed inside the Page_Load event as mentioned in the link above:
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Jul 18, 2010
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Jun 5, 2010
I am not able to use
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using System.Data.Sql;
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Apr 28, 2010
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Jul 31, 2010
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Jan 10, 2011
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The Error I receive is '[SecurityException: Request for the permission of type 'System.Data.Odbc.OdbcPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]'
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My .mdb database file is stored at root level within the Virtual Directory.
I have 1 class in the Data Layer (ClassConnect.cs) that when instantiated, creates the ODBC connection for all other pages to use (OdbcConnection dbConn = new OdbcConnection();)
I have a Connection String stored in the web.config file that is as such. When I deploy to the Live Test Server I change the path in this connection string, because I haven't figured out yet how to get a relative path that works.
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Could anyone suggest what might be the dfference between my Local Dev Server and the Live Test Server and why I might be getting these errors.
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Feb 6, 2010
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Aug 24, 2011
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Code:
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Jun 14, 2010
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Feb 23, 2011
I have a aspxtextbox and its validated from database.If text exists in database then it shows message Username exist.Now this is all happens on click of a aspxbutton after typing some text into aspxtextbox.I just want that when user defocus the textbox then it will automatically check from database and shows the message if exists.
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when make buakup to my data base and open the database digram this error appear : Database diagram support objects cannot be installed because this database does not have a valid owner. To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects.
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I have several web sequential pages which will modify a record and its child records in the database, called a "project". Such a project is currently passed between pages using its database ID in the URL parameters.
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[Code]....
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Mar 1, 2011
how I can correct an error. I've built the MVCMusicStore tutorial here:
http://mike-ciccone.com/Store/
The first time I visit the site and attempt a database connection I get this error:
Exception Details: System.Data.SqlClient.SqlException: CREATE DATABASE permission denied in database 'master'.
But when I refresh, it all works fine. I'm at a bit of a loss. I don't believe I'm attempting to create a database, but I realise that the error may not really have anything to do with that. This is hosted at GoDaddy shared hosting. The database was created and I used an SQL script to create the tables initially and populate the data. My connection string works as I can pull data from the database, but I do have
a feeling it will be a web.config setting that will correct this.
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