| 其实PowerDesigner的pdm文件是一个xml文件来的，我们可以当作读取xml文件一样的方式来读pdm文件。 其中，我们需要注意的是：如果我们不使用命名空间管理器的话，系统会提示如下错误： 需要命名空间管理器或 XsltContext。此查询具有前缀、变量或用户定义的函数。
代码
xmlDoc = new
XmlDocument();
xmlDoc.Load(pdmFile); xmlnsManager = new XmlNamespaceManager(xmlDoc.NameTable); xmlnsManager.AddNamespace("a", "attribute" ); xmlnsManager.AddNamespace("c", "collection" ); xmlnsManager.AddNamespace("o", "object" ); XmlNode xnTables = xmlDoc.SelectSingleNode("//" + cTables, xmlnsManager);
其实C#读取pdm文件难度并不大，只是一种体力活，为了后人少走点弯路，我下面公布一下代码： ColumnInfo.cs（字段类）
代码
namespace Piggy.Common.PDM { //字段信息 public class ColumnInfo { public ColumnInfo() { } string columnId; public string ColumnId { get { return columnId; } set { columnId = value; } } string objectID; public string ObjectID { get { return objectID; } set { objectID = value; } } string name; public string Name { get { return name; } set { name = value; } } string code; public string Code { get { return code; } set { code = value; } } int creationDate; public int CreationDate { get { return creationDate; } set { creationDate = value; } } string creator; public string Creator { get { return creator; } set { creator = value; } } int modificationDate; public int ModificationDate { get { return modificationDate; } set { modificationDate = value; } } string modifier; public string Modifier { get { return modifier; } set { modifier = value; } } string comment; public string Comment { get { return comment; } set { comment = value; } } string dataType; public string DataType { get { return dataType; } set { dataType = value; } } string length; public string Length { get { return length; } set { length = value; } } //是否自增量 bool identity; public bool Identity { get { return identity; } set { identity = value; } } bool mandatory; //禁止为空 public bool Mandatory { get { return mandatory; } set { mandatory = value; } } string extendedAttributesText; //扩展属性 public string ExtendedAttributesText { get { return extendedAttributesText; } set { extendedAttributesText = value; } } string physicalOptions; public string PhysicalOptions { get { return physicalOptions; } set { physicalOptions = value; } } } }
PdmKey.cs（主键类）
代码
using
System.Collections.Generic;
namespace Piggy.Common.PDM { public class PdmKey { public PdmKey() { } string keyId; public string KeyId { get { return keyId; } set { keyId = value; } } string objectID; public string ObjectID { get { return objectID; } set { objectID = value; } } string name; public string Name { get { return name; } set { name = value; } } string code; public string Code { get { return code; } set { code = value; } } int creationDate; public int CreationDate { get { return creationDate; } set { creationDate = value; } } string creator; public string Creator { get { return creator; } set { creator = value; } } int modificationDate; public int ModificationDate { get { return modificationDate; } set { modificationDate = value; } } string modifier; public string Modifier { get { return modifier; } set { modifier = value; } } IList<ColumnInfo> columns; public IList<ColumnInfo> Columns { get { return columns; } } public void AddColumn(ColumnInfo mColumn) { if (columns == null ) columns = new List<ColumnInfo> (); columns.Add(mColumn); } } } TableInfo.cs（表信息类）
代码
using
System.Collections.Generic;
namespace Piggy.Common.PDM { //表信息 public class TableInfo { public TableInfo() { } string tableId; public string TableId { get { return tableId; } set { tableId = value; } } string objectID; public string ObjectID { get { return objectID; } set { objectID = value; } } string name; public string Name { get { return name; } set { name = value; } } string code; public string Code { get { return code; } set { code = value; } } int creationDate; public int CreationDate { get { return creationDate; } set { creationDate = value; } } string creator; public string Creator { get { return creator; } set { creator = value; } } int modificationDate; public int ModificationDate { get { return modificationDate; } set { modificationDate = value; } } string modifier; public string Modifier { get { return modifier; } set { modifier = value; } } string comment; public string Comment { get { return comment; } set { comment = value; } } string physicalOptions; public string PhysicalOptions { get { return physicalOptions; } set { physicalOptions = value; } } IList<ColumnInfo> columns; public IList<ColumnInfo> Columns { get { return columns; } } IList<PdmKey> keys; public IList<PdmKey> Keys { get { return keys; } } public void AddColumn(ColumnInfo mColumn) { if (columns == null ) columns = new List<ColumnInfo> (); columns.Add(mColumn); } public void AddKey(PdmKey mKey) { if (keys == null ) keys = new List<PdmKey> (); keys.Add(mKey); } } }
PdmReader.cs（pdm文件读取器类）
代码
using
System.Xml;
using System.Collections.Generic; using System.Collections; using System; namespace Piggy.Common.PDM { public class PdmReader { public const string a = "attribute", c = "collection", o = "object" ; public const string cClasses = "c:Classes" ; public const string oClass = "o:Class" ; public const string cAttributes = "c:Attributes" ; public const string oAttribute = "o:Attribute" ; public const string cTables = "c:Tables" ; public const string oTable = "o:Table" ; public const string cColumns = "c:Columns" ; public const string oColumn = "o:Column" ; XmlDocument xmlDoc; XmlNamespaceManager xmlnsManager; /// <summary>构造函数 </summary> public PdmReader() { // TODO: 在此处添加构造函数逻辑 xmlDoc = new XmlDocument(); } /// <summary>构造函数 </summary> public PdmReader(string pdm_file) { PdmFile = pdm_file; } string pdmFile; public string PdmFile { get { return pdmFile; } set { pdmFile = value; if (xmlDoc == null ) { xmlDoc = new XmlDocument(); xmlDoc.Load(pdmFile); xmlnsManager = new XmlNamespaceManager(xmlDoc.NameTable); xmlnsManager.AddNamespace("a", "attribute" ); xmlnsManager.AddNamespace("c", "collection" ); xmlnsManager.AddNamespace("o", "object" ); } } } IList<TableInfo> tables; public IList<TableInfo> Tables { get { return tables; } set { tables = value; } } public void InitData() { if (Tables == null ) Tables = new List<TableInfo> (); XmlNode xnTables = xmlDoc.SelectSingleNode("//" + cTables, xmlnsManager); foreach (XmlNode xnTable in xnTables.ChildNodes) { Tables.Add(GetTable(xnTable)); } } //初始化"o:Table"的节点 private TableInfo GetTable(XmlNode xnTable) { TableInfo mTable = new TableInfo(); XmlElement xe = (XmlElement)xnTable; mTable.TableId = xe.GetAttribute("Id" ); XmlNodeList xnTProperty = xe.ChildNodes; foreach (XmlNode xnP in xnTProperty) { switch (xnP.Name) { case "a:ObjectID": mTable.ObjectID = xnP.InnerText; break ; case "a:Name": mTable.Name = xnP.InnerText; break ; case "a:Code": mTable.Code = xnP.InnerText; break ; case "a:CreationDate": mTable.CreationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Creator": mTable.Creator = xnP.InnerText; break ; case "a:ModificationDate": mTable.ModificationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Modifier": mTable.Modifier = xnP.InnerText; break ; case "a:Comment": mTable.Comment = xnP.InnerText; break ; case "a:PhysicalOptions": mTable.PhysicalOptions = xnP.InnerText; break ; case "c:Columns" : InitColumns(xnP, mTable); break ; case "c:Keys" : InitKeys(xnP, mTable); break ; } } return mTable; } //初始化"c:Columns"的节点 private void InitColumns(XmlNode xnColumns, TableInfo pTable) { foreach (XmlNode xnColumn in xnColumns) { pTable.AddColumn(GetColumn(xnColumn)); } } //初始化c:Keys"的节点 private void InitKeys(XmlNode xnKeys, TableInfo pTable) { foreach (XmlNode xnKey in xnKeys) { pTable.AddKey(GetKey(xnKey)); } } private ColumnInfo GetColumn(XmlNode xnColumn) { ColumnInfo mColumn = new ColumnInfo(); XmlElement xe = (XmlElement)xnColumn; mColumn.ColumnId = xe.GetAttribute("Id" ); XmlNodeList xnCProperty = xe.ChildNodes; foreach (XmlNode xnP in xnCProperty) { switch (xnP.Name) { case "a:ObjectID": mColumn.ObjectID = xnP.InnerText; break ; case "a:Name": mColumn.Name= xnP.InnerText; break ; case "a:Code": mColumn.Code = xnP.InnerText; break ; case "a:CreationDate": mColumn.CreationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Creator": mColumn.Creator = xnP.InnerText; break ; case "a:ModificationDate": mColumn.ModificationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Modifier": mColumn.Modifier = xnP.InnerText; break ; case "a:Comment": mColumn.Comment = xnP.InnerText; break ; case "a:DataType": mColumn.DataType= xnP.InnerText; break ; case "a:Length": mColumn.Length= xnP.InnerText; break ; case "a:Identity": mColumn.Identity = pgConvert.ConvertStringToBoolean(xnP.InnerText); break ; case "a:Mandatory": mColumn.Mandatory = pgConvert.ConvertStringToBoolean(xnP.InnerText); break ; case "a:PhysicalOptions": mColumn.PhysicalOptions= xnP.InnerText; break ; case "a:ExtendedAttributesText": mColumn.ExtendedAttributesText= xnP.InnerText; break ; } } return mColumn; } private PdmKey GetKey(XmlNode xnKey) { PdmKey mKey = new PdmKey(); XmlElement xe = (XmlElement)xnKey; mKey.KeyId = xe.GetAttribute("Id" ); XmlNodeList xnKProperty = xe.ChildNodes; foreach (XmlNode xnP in xnKProperty) { switch (xnP.Name) { case "a:ObjectID": mKey.ObjectID = xnP.InnerText; break ; case "a:Name": mKey.Name = xnP.InnerText; break ; case "a:Code": mKey.Code = xnP.InnerText; break ; case "a:CreationDate": mKey.CreationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Creator": mKey.Creator = xnP.InnerText; break ; case "a:ModificationDate": mKey.ModificationDate = Convert.ToInt32(xnP.InnerText); break ; case "a:Modifier": mKey.Modifier = xnP.InnerText; break ; //还差 <c:Key.Columns> } } return mKey; } } }
使用方法：
PdmReader mTest = new PdmReader("D://piggy//CodeTest.pdm"
);
mTest.InitData(); this.Text=Convert.ToString(mTest.Tables.Count); |
C#中读取pdm文件信息(PowerDesigner读取方法)
时间:2010-11-10 11:11
来源:未知
作者:admin
点击: 147次
我要投稿
高质量的ASP.NET空间，完美支持1.0/2.0/3.5/MVC等
来源：http://www.soaspx.com/dotnet/csharp/csharp_20101110_6386.html