Connect Database C# ยังไงคะ ใช้ Visual Web Developer 2010 Express ในการเขียน

		String strConnString;
		strConnString = "Server=localhost;Uid=sa;PASSWORD=;database=mydatabase;Max Pool Size=400;Connect Timeout=600;";
		objConn = new SqlConnection(strConnString);
		objConn.Open();

		if(objConn.State == ConnectionState.Open)
		{
			this.lblText.Text = "SQL Server Connected";
		}
		else
		{
			this.lblText.Text = "SQL Server Connect Failed";
		}