SQL Connectiopn in ADO.NET

hi,
first you need to include
Using System.Data.SqlClient;

//then create swl connection :

Sqlconnection scon = new Sqlconnection("server = .\\sqlexpress ; database = your database name; integrated security = true");

// now the sql command is written as :

SqlCommand comm = new SqlCommand("insert into tablename values(@p1,@p2)",scon);

// now inserting values of p1,p2

//Here I have used two parameters one is varchar and its value is inserted by textbox.

com.Parameters.Add(@p1,SqlDbType.Varchar,50).value = textbox1.text;

// similarly you can insert values for other parameters.