ORM_FieldAttribute类详解：字段特性定义，框架内核根据此特性自动生成SQL脚本

/// <summary>
/// 字段特性定义，根据参数自动生成SQL脚本。
/// </summary>
public class ORM_FieldAttribute : Attribute
{
    private DbType _type; //数据类型
     private int _size; //字段长度
     private bool _isLookup;//是否是视图或Lookup字段
     private bool _isAddOrUpdate;//是否需要更新的字段
     private bool _isPrimaryKey; //是否主键字段 isid/ 32bit string
     private bool _isForeignKey;//是否外键字段 isid /32bit string
     private bool _isDocFieldName;//是否单据号码
    
    /// <summary>
    /// SqlDbType数据类型
    /// </summary>
     public DbType Type { get { return _type; } }
    
    /// <summary>
    /// 字段长度
    /// </summary>
     public int Size { get { return _size; } }
    
    /// <summary>
    /// 是否视图或Lookup参照字段(参照字段不能新增和修改)
    /// </summary>
     public bool IsLookup { get { return _isLookup; } }
    
    /// <summary>
    /// 是否更新字段
    /// </summary>
     public bool IsAddOrUpdate { get { return _isAddOrUpdate; } }
    
    /// <summary>
    /// 是否主键字段
    /// </summary>
     public bool IsPrimaryKey { get { return _isPrimaryKey; } }
    
    /// <summary>
    /// 是否外键字段
    /// </summary>
     public bool IsForeignKey { get { return _isForeignKey; } }
    
    /// <summary>
    /// 是否单据号码
    /// </summary>
     public bool IsDocFieldName { get { return _isDocFieldName; } }
    
    /// <summary>
    /// 构造器
    /// </summary>
    /// <param name="type">DbType数据类型</param>
    /// <param name="size">字段长度</param>
    /// <param name="islookup">是否是视图或Lookup字段</param>
    /// <param name="isAddorUpdate">是否需要更新的字段</param>
    /// <param name="isPrimaryKey">是否主键字段</param>
    /// <param name="isForeignKey">是否外键字段</param>
    /// <param name="isDocFieldName">是否单据号码</param>
     public ORM_FieldAttribute(DbType type, int size,
    bool islookup, bool isAddorUpdate, bool isPrimaryKey,
    bool isForeignKey, bool isDocFieldName)
    {
        _type = type;
        _size = size;
        _isLookup = islookup;
        _isAddOrUpdate = isAddorUpdate;
        _isPrimaryKey = isPrimaryKey;
        _isForeignKey = isForeignKey;
        _isDocFieldName = isDocFieldName;
    }
    
}

//来源:C/S框架网(www.csframework.com) QQ:23404761