Linguagem do codigo

Question

Qual a Linguagem do código abaixo?

[WebMethod]
public string[] GetCountryInfo(string prefixText)
{
 int count = 10; 
 string sql = "Select * from Country Where Country_Name like @prefixText";
 SqlDataAdapter da = new SqlDataAdapter(sql,”Your Connection String Comes Here”));
 da.SelectCommand.Parameters.Add("@prefixText", SqlDbType.VarChar, 50).Value = prefixText+ "%"; 
 DataTable dt = new DataTable(); 
 da.Fill(dt); 
 string[] items = new string[dt.Rows.Count];
 int i = 0; 
 foreach (DataRow dr in dt.Rows) 
 { 
  items.SetValue(dr["Country_Name"].ToString(),i); 
  i++; 
 } 
 return items; 
}