SQL SERVER 与 C# 中数据类型的对应关系

private string ChangeToCSharpType(string type)
{
            string reval = string.Empty;
            switch (type.ToLower())
            {
                case "int":
                    reval = "Int32";    // int
                    break;
                case "text":
                    reval = "String";   // string
                    break;
                case "bigint":
                    reval = "Int64";    // long
                    break;
                case "binary":
                    reval = "System.Byte[]";    // byte[]
                    break;
                case "bit":
                    reval = "Boolean";  // bool
                    break;
                case "char":
                    reval = "String";   // string
                    break;
                case "datetime":
                    reval = "System.DateTime";
                    break;
                case "decimal":
                    reval = "System.Decimal";   // decimal
                    break;
                case "float":
                    reval = "System.Double";    // double
                    break;
                case "image":
                    reval = "System.Byte[]";    // byte[]
                    break;
                case "money":
                    reval = "System.Decimal";   // decimal
                    break;
                case "nchar":
                    reval = "String";
                    break;
                case "ntext":
                    reval = "String";
                    break;
                case "numeric":
                    reval = "System.Decimal";   // decimal
                    break;
                case "nvarchar":
                    reval = "String";
                    break;
                case "real":
                    reval = "System.Single";    // float
                    break;
                case "smalldatetime":
                    reval = "System.DateTime";
                    break;
                case "smallint":
                    reval = "Int16";    // short
                    break;
                case "smallmoney":
                    reval = "System.Decimal";   // decimal
                    break;
                case "timestamp":
                    reval = "System.DateTime";
                    break;
                case "tinyint":
                    reval = "System.Byte";  // byte
                    break;
                case "uniqueidentifier":
                    reval = "System.Guid";
                    break;
                case "varbinary":
                    reval = "System.Byte[]";    // byte[]
                    break;
                case "varchar":
                    reval = "String";   // string
                    break;
                case "Variant":
                    reval = "Object";   // object
                    break;
                default:
                    reval = "String";   // string
                    break;
            }
            return reval;
}

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