316 lines
8.8 KiB
C#
316 lines
8.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Data;
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using CYQ.Data.SQL;
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namespace CYQ.Data.Table
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{
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/// <summary>
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/// <20>нṹ<D0BD><E1B9B9>ѡ<EFBFBD><D1A1>
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/// </summary>
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[Flags]
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public enum AlterOp
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{
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/// <summary>
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/// Ĭ<>ϲ<EFBFBD><CFB2><EFBFBD>״̬
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/// </summary>
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None = 0,
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/// <summary>
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/// <20><><EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD>״̬
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/// </summary>
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AddOrModify = 1,
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/// <summary>
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/// ɾ<><C9BE><EFBFBD><EFBFBD>״̬
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/// </summary>
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Drop = 2,
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/// <summary>
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/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬
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/// </summary>
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Rename = 4
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}
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/// <summary>
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/// <20><>Ԫ<EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD>
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/// </summary>
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public partial class MCellStruct
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{
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private MDataColumn _MDataColumn = null;
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/// <summary>
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/// <20>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD>
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/// </summary>
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public MDataColumn MDataColumn
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{
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get
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{
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return _MDataColumn;
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}
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internal set
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{
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_MDataColumn = value;
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}
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}
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/// <summary>
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/// <20>Ƿ<EFBFBD><C7B7><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>и<EFBFBD>ʽУ<CABD><D0A3>
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/// </summary>
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//public bool IsCheckValue = true;
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/// <summary>
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/// <20>Ƿ<EFBFBD><C7B7>ؼ<EFBFBD><D8BC><EFBFBD>
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/// </summary>
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public bool IsPrimaryKey = false;
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/// <summary>
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/// <20>Ƿ<EFBFBD>Ψһ<CEA8><D2BB><EFBFBD><EFBFBD>
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/// </summary>
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public bool IsUniqueKey = false;
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/// <summary>
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/// <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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public bool IsForeignKey = false;
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/// <summary>
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/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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public string FKTableName;
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/// <summary>
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/// <20>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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public string Description;
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private object _DefaultValue;
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/// <summary>
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/// Ĭ<><C4AC>ֵ
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/// </summary>
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public object DefaultValue
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{
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get { return _DefaultValue; }
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set {
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int groupID=DataType.GetGroup(SqlType);
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if (groupID == 1 || groupID == 3)
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{
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string defaultValue = Convert.ToString(value);
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if (!string.IsNullOrEmpty(defaultValue) && (defaultValue[0] == 'N' || defaultValue[0]=='('))
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{
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defaultValue = defaultValue.Trim('N','(', ')');//<2F><><EFBFBD><EFBFBD>int<6E><74>Ĭ<EFBFBD><C4AC>ֵ<EFBFBD><D6B5>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>⡣
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}
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_DefaultValue = defaultValue;
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}
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else
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{
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_DefaultValue = value;
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}
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}
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}
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/// <summary>
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/// <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>ΪNull
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/// </summary>
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public bool IsCanNull;
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/// <summary>
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/// <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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public bool IsAutoIncrement;
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/// <summary>
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/// <20>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>AlterOpΪRenameʱ<65><CAB1><EFBFBD>ã<EFBFBD>
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/// </summary>
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public string OldName;
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private string _ColumnName = string.Empty;
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/// <summary>
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/// <20><><EFBFBD><EFBFBD>
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/// </summary>
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public string ColumnName
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{
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get
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{
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return _ColumnName;
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}
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set
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{
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_ColumnName = value;
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if (_MDataColumn != null)
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{
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_MDataColumn.IsColumnNameChanged = true;//<2F><><EFBFBD><EFBFBD><EFBFBD>ѱ<EFBFBD><D1B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>
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}
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}
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}
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/// <summary>
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/// <20><><EFBFBD><EFBFBD>
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/// </summary>
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public string TableName;
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private SqlDbType _SqlType;
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/// <summary>
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/// SqlDbType<70><65><EFBFBD><EFBFBD>
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/// </summary>
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public SqlDbType SqlType
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{
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get
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{
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return _SqlType;
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}
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set
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{
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_SqlType = value;
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ValueType = DataType.GetType(_SqlType, DalType);
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}
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}
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/// <summary>
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/// <20><><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
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/// </summary>
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public int MaxSize;
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/// <summary>
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/// <20><><EFBFBD>ȣ<EFBFBD>С<EFBFBD><D0A1>λ<EFBFBD><CEBB>
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/// </summary>
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public short Scale;
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/// <summary>
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/// ԭʼ<D4AD><CABC><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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internal string SqlTypeName;
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internal Type ValueType;
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private DalType dalType = DalType.None;
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internal DalType DalType
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{
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get
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{
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if (_MDataColumn != null)
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{
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return _MDataColumn.dalType;
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}
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return dalType;
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}
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}
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private AlterOp _AlterOp = AlterOp.None;
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/// <summary>
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/// <20>нṹ<D0BD>ı<EFBFBD>״̬
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/// </summary>
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public AlterOp AlterOp
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{
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get { return _AlterOp; }
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set { _AlterOp = value; }
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}
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//<2F>ڲ<EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>Ϊ<EFBFBD><CEAA>ʱʹ<CAB1><CAB9>
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internal int ReaderIndex = -1;
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#region <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>
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internal MCellStruct(DalType dalType)
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{
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this.dalType = dalType;
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}
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public MCellStruct(string columnName, SqlDbType sqlType)
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{
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Init(columnName, sqlType, false, true, false, -1, null);
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}
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public MCellStruct(string columnName, SqlDbType sqlType, bool isAutoIncrement, bool isCanNull, int maxSize)
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{
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Init(columnName, sqlType, isAutoIncrement, isCanNull, false, maxSize, null);
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}
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internal void Init(string columnName, SqlDbType sqlType, bool isAutoIncrement, bool isCanNull, bool isPrimaryKey, int maxSize, object defaultValue)
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{
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ColumnName = columnName.Trim();
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SqlType = sqlType;
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IsAutoIncrement = isAutoIncrement;
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IsCanNull = isCanNull;
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MaxSize = maxSize;
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IsPrimaryKey = isPrimaryKey;
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DefaultValue = defaultValue;
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}
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internal void Load(MCellStruct ms)
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{
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ColumnName = ms.ColumnName;
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SqlType = ms.SqlType;
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IsAutoIncrement = ms.IsAutoIncrement;
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IsCanNull = ms.IsCanNull;
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MaxSize = ms.MaxSize;
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Scale = ms.Scale;
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IsPrimaryKey = ms.IsPrimaryKey;
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IsUniqueKey = ms.IsUniqueKey;
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IsForeignKey = ms.IsForeignKey;
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FKTableName = ms.FKTableName;
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SqlTypeName = ms.SqlTypeName;
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AlterOp = ms.AlterOp;
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if (ms.DefaultValue != null)
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{
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DefaultValue = ms.DefaultValue;
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}
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if (!string.IsNullOrEmpty(ms.Description))
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{
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Description = ms.Description;
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}
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}
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/// <summary>
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/// <20><>¡һ<C2A1><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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/// </summary>
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/// <returns></returns>
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public MCellStruct Clone()
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{
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MCellStruct ms = new MCellStruct(dalType);
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ms.ColumnName = ColumnName;
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ms.SqlType = SqlType;
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ms.IsAutoIncrement = IsAutoIncrement;
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ms.IsCanNull = IsCanNull;
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ms.MaxSize = MaxSize;
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ms.Scale = Scale;
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ms.IsPrimaryKey = IsPrimaryKey;
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ms.IsUniqueKey = IsUniqueKey;
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ms.IsForeignKey = IsForeignKey;
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ms.FKTableName = FKTableName;
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ms.SqlTypeName = SqlTypeName;
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ms.DefaultValue = DefaultValue;
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ms.Description = Description;
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ms.MDataColumn = MDataColumn;
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ms.AlterOp = AlterOp;
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ms.TableName = TableName;
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return ms;
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}
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#endregion
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}
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public partial class MCellStruct // <20><>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD>
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{
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/// <summary>
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/// Ϊ<>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
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/// </summary>
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public MCellStruct Set(object value)
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{
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Set(value, -1);
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return this;
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}
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public MCellStruct Set(object value, int state)
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{
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if (_MDataColumn != null)
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{
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MDataTable dt = _MDataColumn._Table;
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if (dt != null && dt.Rows.Count > 0)
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{
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int index = _MDataColumn.GetIndex(ColumnName);
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for (int i = 0; i < dt.Rows.Count; i++)
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{
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dt.Rows[i].Set(index, value, state);
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}
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}
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}
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return this;
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}
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/// <summary>
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/// <20><><EFBFBD>ظ<EFBFBD><D8B8>е<EFBFBD>where In <20><><EFBFBD><EFBFBD> : Name in("aa","bb")
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/// </summary>
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/// <returns></returns>
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public string GetWhereIn()
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{
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if (_MDataColumn != null)
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{
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MDataTable dt = _MDataColumn._Table;
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if (dt != null && dt.Rows.Count > 0)
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{
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List<string> items = dt.GetColumnItems<string>(ColumnName, BreakOp.NullOrEmpty, true);
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if (items != null && items.Count > 0)
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{
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return SqlCreate.GetWhereIn(this, items, dalType);
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}
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}
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}
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return string.Empty;
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}
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}
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}
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