[Simple Connection With Local & Windows Authenticationi]
String strConn = "Server = (local);" +
"integrated security = SSPI;" +
"database = factory";
SqlConnection conn = new SqlConnection(strConn);
try
{
conn.Open();
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
finally
{
conn.Close();
}
[Connetion String with UserId and Password]
String strConn = "Persist Security Info=False;" +
"User ID=Rich;" +
"Password=1984;" +
"Initial Catalog=factory;";
[Connetion String with Database Server's IP]
String strConn = "Server =192.168.1.101;"+
"Persist Security Info=False;" +
"User ID=Rich;" +
"Password=1984;" +
"Initial Catalog=factory;";
[Create Connection Using Web.config]
// in Web.config /*
<configuration>
<appSettings/>
<connectionStrings>
<add name ="Factory" providerName="System.Data.SqlClient" connectionString="Server = (local);integrated security =SSPI;database =factory"/>
</connectionStrings>
*/ // encrypt at console >aspnet_regiis -pef "connectionStrings" F:/MyStudy/Dragon ////////////////////////////////////////////////////////// // in .CS file ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings["Factory"]; DbProviderFactory pf = DbProviderFactories.GetFactory(settings.ProviderName); DbConnection conn = pf.CreateConnection(); conn.ConnectionString = settings.ConnectionString; ////////////////////////////////////////////////////////////////////////////////////////////////////// // ConnectionStringSettings stringSettings = ConfigurationManager.ConnectionStrings["Factory"]; // SqlConnection conn = new SqlConnection(stringSettings.ConnectionString); //////////////////////////////////////////////////////////////////////////////////////////////////////
[Use Transaction Code]
_conn.Open();SqlTransaction tran = _conn.BeginTransaction();
String strSql = "UPDATE [USER] SET password =/'xsd/' WHERE username = /'test/';";
SqlCommand cmd = new SqlCommand(strSql,_conn);
cmd.Transaction = tran;
int result = cmd.ExecuteNonQuery();
tran.Rollback();
//tran.Commit();
[Use Store Procedure code]
SqlCommand cmd = new SqlCommand("ASimpleProcedure", _conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@username", SqlDbType.VarChar, 20));
cmd.Parameters.Add(new SqlParameter("@age", SqlDbType.Int, 20));
cmd.Parameters["@username"].Value = "test";
cmd.Parameters["@age"].Value = 24;
try
{
_conn.Open();
cmd.UpdatedRowSource = UpdateRowSource.OutputParameters;
cmd.ExecuteNonQuery();
}