- #Net sql server connection string how to
- #Net sql server connection string full
- #Net sql server connection string software
- #Net sql server connection string windows
its definition in application code) is usually rarely used. Hard coding of the connection string (i.e.
#Net sql server connection string how to
#Net sql server connection string full
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#Net sql server connection string software
Pragim Technologies - Best software training and placements in marathahalli, bangalore. String ConnectionString = īindingSource source = new BindingSource() Private void Form1_Load( object sender, EventArgs e)
#Net sql server connection string windows
The example below, shows how to read connection strings from App.config file, and bind the data to a DataGridview control in a windows application. The same ConfigurationManager class can be used to read connection string from App.config file. Storing connection strings in App.config is similar to web.config. The configuration file in a windows application is App.config. GridView1.DataSource = cmd.ExecuteReader() SqlCommand cmd = new SqlCommand( "Select * from tblProductInventory", connection) Using ( SqlConnection connection = new SqlConnection(
Protected void Page_Load( object sender, EventArgs e) ConfigurationManager class is present in System.Configuration namespace. Use the ConnectionStrings property of the ConfigurationManager class to retrieve the connection string value from web.config. How to read the connection string from web.config file? Since we are working with sql server, the provider name is. Give a meaningful name to your connection string. In an asp.net web application, the configuration strings can be stored in web.config file, as shown below. This way we have only one place to change, and we don't have to re-build and re-deploy our application. In real time, we may point our applications from time to time, from Development database to testing database to UAT database.īecause of these issues, the best practice is to store the connection in the configuration file, from which all the pages can read and use it. This adds to the maintenance overhead and is also error prone. All the pages that has the connection string hard coded needs to change. If you change application code, the application requires a re-build and a re-deployment which is a time waster.Ģ. For some reason, if we want to point our application to a different database server, we will have to change the application code. There are 2 issues with hard coding the connection strings in application codeġ.
The connection strings were hard coded in the examples that we worked with in Part 2. SqlConnection object uses connection string. In Part 2, of this video series, we have discussed about the SqlConnection object. Advantages of storing connection string in configuration files - web.config and app.config. Disadvantages of storing connection strings in application code.Ĥ. Reading the connection strings from web.config and app.config files.ģ. For example, web.config for an asp.net web application and app.config for windows applicationĢ. Storing connection strings in a configuration file. In this video session we will learn aboutġ.