insert into Database C#, ADO.net

I try to insert something into database (SQL server 2008). this is what I did so far.

could someone tell me does  my connection string is correct? and what is the next step that actual execute the "insert" to database

thanks in advance

OleDbConnection cn_input = new OleDbConnection();
string ConnStr_input = "Provider = SQLNCLI10; Server = (local); Database = Pb_project; Integrated Security=SSPI; DataTypeCompatibility=80; MARS Connection=True;";

cn_input.ConnectionString = ConnStr_input;
        cn_input.Open();

string insert_db = "INSERT INTO [value_tmp] (subject_ID,location,value) VALUES (2013,'London','Tokyo')";

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