Extract Individual Contents of the Connection String from your Web.Config

A lot of blogs speak about retrieving ConnectionStrings from your web.config files. However what if we need to extract individual contents/portions like the DataSource or the Initial Catalog from the Connection String. This post explains how to extract them


protected void Page_Load(object sender, EventArgs e)


string connStr = WebConfigurationManager.ConnectionStrings


SqlConnectionStringBuilder bldr = 

    new SqlConnectionStringBuilder(connStr);

// displays (local)

string dataSrc = bldr.DataSource;

// displays Northwind

string iniCat = bldr.InitialCatalog;



    Protected Sub Page_Load(ByVal sender As Object, _

                            ByVal e As EventArgs)

        Dim connStr As String = _

        WebConfigurationManager.ConnectionStrings _


        Dim bldr As New SqlConnectionStringBuilder(connStr)

        ' displays (local)

        Dim dataSrc As String = bldr.DataSource

        ' displays Northwind

        Dim iniCat As String = bldr.InitialCatalog

    End Sub

As shown above, we use the SqlConnectionStringBuilder to extract the contents of a connection string. This class provides a simple way to create and manage contents of the ConnectionString.

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About The Author

Suprotim Agarwal
Suprotim Agarwal, ASP.NET Architecture MVP (Microsoft Most Valuable Professional) works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He is the Editor of a Developer Magazine called DNC Magazine. He has also written two EBooks 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook

Follow him on twitter @suprotimagarwal

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