本文实例讲述了C#查询SqlServer数据库并返回单个值的方法。分享给大家供大家参考。具体实现方法如下：

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 static public string GetSqlAsString(string sqlText, SqlParameter[] sqlParameters, string databaseConnectionString) { string result = ""; SqlDataReader reader; SqlConnection connection = new SqlConnection(databaseConnectionString); using (connection) { SqlCommand sqlcommand = connection.CreateCommand(); sqlcommand.CommandText = sqlText; if (sqlParameters != null) { sqlcommand.Parameters.AddRange(sqlParameters); } connection.Open(); reader = sqlcommand.ExecuteReader(); if (reader != null) if (reader.Read()) { result = reader.GetString(0); } } return result; }

　　希望本文所述对大家的C#程序设计有所帮助。