Simple ASP.NET Database Query

by fwhagen Wed, 08 August 2007

Below is the most simple database query for C# to populate a GridView object:

int nItemID = 1; try { using (SqlConnection oSQLConn =
new SqlConnection(ConfigurationManager.ConnectionStrings["UserInfo"].ConnectionString)) { oSQLConn.Open(); using (SqlCommand oSQLCmd = new SqlCommand()) { oSQLCmd.Connection = oSQLConn; oSQLCmd.CommandText = "SELECT DisplayName, EMail FROM Users WHERE UserID = @PARAM_ItemID"; oSQLCmd.Parameters.AddWithValue("@PARAM_ItemID", nItemID); SqlDataReader oSQLReader = oSQLCmd.ExecuteReader(); GridView1.DataSource = oSQLReader; GridView1.DataBind(); } } } catch (Exception ex) { Label_ErrorMsg.Text = ex.Message; }

There are actually many reasons to never use this, including performance, caching, safe SQL, code reuse, standards, proper exception handling, etc, etc.  But sometimes you need a quick and dirty, non-production, piece of code for testing and/or development.  This is it.

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Filed Under: .NET | Programming | SQL

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