SQL数据类型和C#数据类型间的转换代码,CSharp代码库,德仔网

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【CSharp】 SQL数据类型和C#数据类型间的转换
作者:hantianwei / 发布于2014/2/25/ 395
SQL数据类型和C#数据类型间的转换
<?xml version="1.0" encoding="utf-8" ?>
<Languages>
 <Language From="SQL" To="C#">
  <Type From="bigint" To="long" />
  <Type From="binary" To="object" />
  <Type From="bit" To="bool" />
  <Type From="char" To="string" />
  <Type From="datetime" To="DateTime" />
  <Type From="decimal" To="decimal" />
  <Type From="float" To="double" />
  <Type From="image" To="byte[]" />
  <Type From="int" To="int" />
  <Type From="money" To="decimal" />
  <Type From="nchar" To="string" />
  <Type From="ntext" To="string" />
  <Type From="numeric" To="decimal" />
  <Type From="nvarchar" To="string" />
  <Type From="real" To="float" />
  <Type From="smalldatetime" To="DateTime" />
  <Type From="smallint" To="short" />
  <Type From="smallmoney" To="decimal" />
  <Type From="text" To="string" />
  <Type From="timestamp" To="byte[]" />
  <Type From="tinyint" To="byte" />
  <Type From="uniqueidentifier" To="Guid" />
  <Type From="varbinary" To="byte[]" />
  <Type From="varchar" To="string" />
  <Type From="xml" To="string" />
  <Type From="sql_variant" To="object" />
 </Language>
 <Language From="SQL" To="C# System Types">
  <Type From="bigint" To="System.Int64" />
  <Type From="binary" To="System.Object" />
  <Type From="bit" To="System.Boolean" />
  <Type From="char" To="System.String" />
  <Type From="datetime" To="System.DateTime" />
  <Type From="decimal" To="System.Decimal" />
  <Type From="float" To="System.Double" />
  <Type From="image" To="System.Byte[]" />
  <Type From="int" To="System.Int32" />
  <Type From="money" To="System.Decimal" />
  <Type From="nchar" To="System.String" />
  <Type From="ntext" To="System.String" />
  <Type From="numeric" To="System.Decimal" />
  <Type From="nvarchar" To="System.String" />
  <Type From="real" To="System.Single" />
  <Type From="smalldatetime" To="System.DateTime" />
  <Type From="smallint" To="System.Int16" />
  <Type From="smallmoney" To="System.Decimal" />
  <Type From="text" To="System.String" />
  <Type From="timestamp" To="System.Byte[]" />
  <Type From="tinyint" To="System.Byte" />
  <Type From="uniqueidentifier" To="System.Guid" />
  <Type From="varbinary" To="System.Byte[]" />
  <Type From="varchar" To="System.String" />
  <Type From="xml" To="System.String" />
  <Type From="sql_variant" To="System.Object" />
 </Language>
 <DbTarget From="SQL" To="SqlClient">
  <Type From="bigint" To="SqlDbType.BigInt" />
  <Type From="binary" To="SqlDbType.Binary" />
  <Type From="bit" To="SqlDbType.Bit" />
  <Type From="char" To="SqlDbType.Char" />
  <Type From="datetime" To="SqlDbType.DateTime" />
  <Type From="decimal" To="SqlDbType.Decimal" />
  <Type From="float" To="SqlDbType.Float" />
  <Type From="image" To="SqlDbType.Image" />
  <Type From="int" To="SqlDbType.Int" />
  <Type From="money" To="SqlDbType.Money" />
  <Type From="nchar" To="SqlDbType.NChar" />
  <Type From="ntext" To="SqlDbType.NText" />
  <Type From="numeric" To="SqlDbType.Decimal" />
  <Type From="nvarchar" To="SqlDbType.NVarChar" />
  <Type From="real" To="SqlDbType.Real" />
  <Type From="smalldatetime" To="SqlDbType.SmallDateTime" />
  <Type From="smallint" To="SqlDbType.SmallInt" />
  <Type From="smallmoney" To="SqlDbType.SmallMoney" />
  <Type From="text" To="SqlDbType.Text" />
  <Type From="timestamp" To="SqlDbType.Timestamp" />
  <Type From="tinyint" To="SqlDbType.TinyInt" />
  <Type From="uniqueidentifier" To="SqlDbType.UniqueIdentifier" />
  <Type From="varbinary" To="SqlDbType.VarBinary" />
  <Type From="varchar" To="SqlDbType.VarChar" />
  <Type From="xml" To="SqlDbType.Xml" />
  <Type From="sql_variant" To="SqlDbType.Variant" />
 </DbTarget>
 <DbTarget From="SQLCE" To="SqlServerCe">
  <Type From="bigint" To="SqlDbType.BigInt" />
  <Type From="binary" To="SqlDbType.Binary" />
  <Type From="bit" To="SqlDbType.Bit" />
  <Type From="char" To="SqlDbType.Char" />
  <Type From="datetime" To="SqlDbType.DateTime" />
  <Type From="decimal" To="SqlDbType.Decimal" />
  <Type From="float" To="SqlDbType.Float" />
  <Type From="image" To="SqlDbType.Image" />
  <Type From="int" To="SqlDbType.Int" />
  <Type From="money" To="SqlDbType.Money" />
  <Type From="nchar" To="SqlDbType.NChar" />
  <Type From="ntext" To="SqlDbType.NText" />
  <Type From="numeric" To="SqlDbType.Decimal" />
  <Type From="nvarchar" To="SqlDbType.NVarChar" />
  <Type From="real" To="SqlDbType.Real" />
  <Type From="smalldatetime" To="SqlDbType.SmallDateTime" />
  <Type From="smallint" To="SqlDbType.SmallInt" />
  <Type From="smallmoney" To="SqlDbType.SmallMoney" />
  <Type From="text" To="SqlDbType.Text" />
  <Type From="timestamp" To="SqlDbType.Timestamp" />
  <Type From="tinyint" To="SqlDbType.TinyInt" />
  <Type From="uniqueidentifier" To="SqlDbType.UniqueIdentifier" />
  <Type From="varbinary" To="SqlDbType.VarBinary" />
  <Type From="varchar" To="SqlDbType.VarChar" />
  <Type From="xml" To="SqlDbType.Xml" />
  <Type From="sql_variant" To="SqlDbType.Variant" />
 </DbTarget>
</Languages>







读取方法



static Dictionary<string, string> list = new Dictionary<string, string>();
    static void Main(string[] args)
    {
      XElement root = XElement.Load("Languages.xml");

      var custs = (from c in root.Elements("DbTarget")
            where c.Attribute("From").Value.Equals("SQL") && c.Attribute("To").Value.Equals("SqlClient")
            select c).ToList();

      foreach (XElement node in custs.Elements("Type"))
      {
        list.Add(node.Attribute("From").Value, node.Attribute("To").Value);
      }

      Console.ReadKey();
    }
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