code smith 模版（要下载code smith软件使用）：
//生成注释部分代码
<%--
Name:edmx文件加注释
Author: pukuimin
Description:
--%>
<%@ Template Language="C#" TargetLanguage="XML" %>
<%@ Assembly Name="SchemaExplorer" %>
<%@ Import Namespace="SchemaExplorer" %>
<%@ Import Namespace="System.Globalization" %>
<%@ Import Namespace="System.Collections.Generic" %>
<%@ Map Name="CSharpAlias" Src="System-CSharpAlias" Description="数据库字段类型与C#类型的映射表" %>
<%-- 数据库 --%>
<%@ Property Name="SourceDatabase" Type="SchemaExplorer.DatabaseSchema" DeepLoad="True" Optional="False" Category="需要的数据库" Description="Database"%>
<%-- 要打印的表 --%>
<%@ Property Name="Table" Type="SchemaExplorer.TableSchema" DeepLoad="True" Optional="False" Category="需要的数据表" Description="table ." %>
<%@ Property Name="IsAll" Type="System.Boolean" Optional="False" Category="是否生成全部表" Default="True" Description="是否生成全部表" %>
<%
/*
for(int i=TableName.Length-1;i>=0;i--)
{
if(TableName[i]>='A'&& TableName[i]<='Z')
{
TableName=TableName.Substring(0,i)+TableName.Substring(i,1).ToLower()+TableName.Substring(i+1);
break;
}
}
*/
string primaryname=Table.PrimaryKey.MemberColumns[0].Name;
string primarytype= CSharpAlias[Table.PrimaryKey.MemberColumns[0].SystemType.FullName];
string autoname="",autotype="";
foreach(ColumnSchema cs in Table.Columns)
{
if( ((bool)cs.ExtendedProperties["CS_IsIdentity"].Value) == true)
{
autoname=cs.Name;
autotype=CSharpAlias[cs.SystemType.FullName];
break;
}
}
List<string> fkeys=new List<string>();//存储外键列及对应的主键表名
foreach(var item in Table.ForeignKeys)
{
fkeys.Add(item.ForeignKeyMemberColumns[0].Name);
//Response.Write(item.ForeignKeyMemberColumns[0].Name+"--"+item.PrimaryKey.Table.Name+"\n");
}
TableSchemaCollection tables=new TableSchemaCollection();;
if(IsAll !=true)
{
tables.Add(Table);
}
else
{
tables=this.SourceDatabase.Tables;
}
%>
<%
//if(tables==null){Response.WriteLine("空");return;}
//else {Response.WriteLine(tables.Count);}
%>
<Schema>
<!--manual modify begin-->
<!-- 复制替换 edmx文件中的 edmx:ConceptualModels 下的 Schema 内、EntityContainer前对应的内容 -->
<%foreach(TableSchema table in tables){
string TableName=table.Name;
%>
<EntityType Name="<%=TableName%>">
<Documentation>
<Summary><%=table.Description%></Summary>
</Documentation>
<Key>
<PropertyRef Name="<%=primaryname%>" />
</Key>
<% for(int i=0;i<table.Columns.Count;i++) {
ColumnSchema col=table.Columns[i];
//string lowertype=CSharpAlias[col.SystemType.FullName];
string type=col.SystemType.FullName.Replace("System.","");
string Nullable=col.AllowDBNull?"":" Nullable=\"false\"";//是否可空
string maxlength=(type=="String"?" MaxLength=\""+col.Size+"\"":"");//字符串最大长度
string unicode=(col.DataType.ToString()=="AnsiString"?" Unicode=\"false\"":(col.DataType.ToString()=="String"?" Unicode=\"true\"":""));//是否可存储中文
string fixedlength="";//长度是否固定
if(col.NativeType=="nchar" || col.NativeType=="char") fixedlength=" FixedLength=\"true\""; //col.NativeType为数据库中的类型
else if(col.NativeType=="nvarchar" || col.NativeType=="varchar") fixedlength=" FixedLength=\"false\"";
string precision="";
if(col.Scale>0) precision=" Precision=\""+col.Scale+"\"";
//col.Precision
%>
<Property Name="<%=col.Name%>" Type="<%=type%>"<%=maxlength%><%=fixedlength%><%=unicode%><%=Nullable%><%=precision%> >
<Documentation>
<Summary><%=col.Description%></Summary>
</Documentation>
</Property>
<%
}
%>
</EntityType>
<%}%>
<!--manual modify end-->
</Schema>
//生成文件到硬上
<%--
Name:GenerateFiles.cst
Author: pukuimin
Description: 生成并输出xml文件的模版
--%>
<%@ Template Language="C#" TargetLanguage="Text" Inherits="CodeTemplate" Encoding="utf-8"%>
<%@ Assembly Name="SchemaExplorer"%>
<%@ Import Namespace="SchemaExplorer"%>
<%-- 数据库 --%>
<%@ Property Name="SourceDatabase" Type="SchemaExplorer.DatabaseSchema" DeepLoad="True" Optional="False" Category="需要的数据库" Description="Database"%>
<%-- 要打印的表 --%>
<%@ Property Name="Table" Type="SchemaExplorer.TableSchema" DeepLoad="True" Optional="False" Category="需要的数据表" Description="table ." %>
<%@ Property Name="IsAll" Type="System.Boolean" Optional="False" Category="是否生成全部表" Default="True" Description="是否生成全部表" %>
<%-- 注册实体层Model模板 --%>
<%@ Register Name="edmx_sumary" Template="edmx_sumary.cst" MergeProperties="Flase" ExcludeProperties=""%>
<script runat="template">
//解决方案输出路径
private string Directory = String.Empty;
[Editor(typeof(System.Windows.Forms.Design.FolderNameEditor), typeof(System.Drawing.Design.UITypeEditor))]
[Optional, NotChecked]
[DefaultValue("")]
public string OutputDirectory
{
get
{
return Directory;
}
set
{
if (value.EndsWith("\\")) value = value.Substring(0, value.Length -1);
Directory = value;
}
}
public string GetSubspace(string tableName)
{
for(int i=tableName.Length-1;i>=0;i--)
{
if(tableName[i]>='A'&& tableName[i]<='Z')
{
tableName=tableName.Substring(0,i)+tableName.Substring(i,1).ToLower()+tableName.Substring(i+1);
break;
}
}
return tableName;
}
//生成实体Entity类
private void GenerateEntityClasses()
{
CodeTemplate edmx_sumaryTemplate =new edmx_sumary();
/*
////生成基础BaseDAL抽象类
string basedalDirectory = OutputDirectory +"\\DAL\\BaseDAL.cs";
basedalTemplate.SetProperty("NM",MyNameSpace);//命名空间
basedalTemplate.RenderToFile(basedalDirectory,true);//文件输出
Debug.WriteLine(basedalDirectory +" 创建成功.");
*/
Response.WriteLine("……………………开始生成……………………");
string edmx_sumaryDirectory = OutputDirectory +"\\edmx_sumary.xml";
//生成Service文件
edmx_sumaryTemplate.SetProperty("SourceDatabase",SourceDatabase);
edmx_sumaryTemplate.SetProperty("Table",Table);
edmx_sumaryTemplate.SetProperty("IsAll",IsAll);
edmx_sumaryTemplate.RenderToFile(edmx_sumaryDirectory,true);//文件输出
Response.WriteLine(edmx_sumaryDirectory +" 创建成功.");
Response.WriteLine("…………………… 完成生成……………………");
}
</script>
<%
//创建实体层Entity类
this.GenerateEntityClasses();
Debug.WriteLine("全部生成完成！");
Response.WriteLine("全部生成完成！");
%>
c#新建控制台应用程序，给edmx中的字段加注释：
class Program
{
static void Main(string[] args)
{
Work wk = new Work();
wk.DoWork();
Console.ReadKey();
}
}
public class Work
{
//文件都放到生成的exe同目录下执行
public string InXmlPath = "edmx_sumary.xml";//code smith生成的注释文件
public string OutXmlPath = "SysEntities.edmx";
public void DoWork()
{
string InFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, InXmlPath);
string OutFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, OutXmlPath);
XmlDocument inputDoc = new XmlDocument();
XmlDocument outputDoc = new XmlDocument();
inputDoc.Load(InFile);
outputDoc.Load(OutFile);
XmlNodeList inList = inputDoc.SelectNodes("/Schema/EntityType");
if (inList == null || inList.Count == 0) return;
XmlNamespaceManager xmlnsManager = new XmlNamespaceManager(outputDoc.NameTable);
xmlnsManager.AddNamespace("edmx", "http://schemas.microsoft.com/ado/2009/11/edmx");
xmlnsManager.AddNamespace("annotation", "http://schemas.microsoft.com/ado/2009/02/edm/annotation");
xmlnsManager.AddNamespace("customannotation", "http://schemas.microsoft.com/ado/2009/02/edm/customannotation");
// "/edmx:Edmx/edmx:Runtime/edmx:ConceptualModels/edmx:Schema/edmx:EntityType"
XmlNode outSchemaNode = outputDoc.SelectSingleNode("/edmx:Edmx/edmx:Runtime/edmx:ConceptualModels", xmlnsManager).ChildNodes[0];
foreach (XmlNode inNode in inList)//循环多张表注释
{
if (inNode.NodeType == XmlNodeType.Comment) continue;
XmlElement inElement = (XmlElement)inNode;
string tableName = inElement.GetAttribute("Name");
Console.Write(tableName + " ; ");
Console.WriteLine();
XmlElement outElement = null;
foreach (XmlNode outNodetemp in outSchemaNode.ChildNodes)//找出输入文件表节点 对应的输出文件 表节点
{
if (outNodetemp.NodeType == XmlNodeType.Comment || outNodetemp.Name == "EntityContainer" || outNodetemp.Name == "Association") continue;
XmlElement xe_edmx = (XmlElement)outNodetemp;
string o_tableName = xe_edmx.GetAttribute("Name");
if (o_tableName == tableName)
{
outElement = xe_edmx; break;
}
}
if (outElement == null) continue;
Console.WriteLine("edmx:" + outElement.GetAttribute("Name"));
foreach (XmlNode field in outElement.ChildNodes)
{
if (field.NodeType == XmlNodeType.Comment) continue;
XmlElement field_element = (XmlElement)field;
//if (field_element.NodeType == XmlNodeType.Comment || field_element.Name == "NavigationProperty" || field_element.Name == "Key") continue;
if (field_element.Name == "Documentation") outElement.RemoveChild(field);//删除输出文件原有的表注释
}
//outputDoc.Save(OutFile + "new.edmx"); return;
foreach (XmlNode field in inElement.ChildNodes)//循环输入文件各字段
{
if (field.NodeType == XmlNodeType.Comment || field.Name=="Key") continue;
XmlElement field_element = (XmlElement)field;
string fieldName = field_element.GetAttribute("Name");
if (field_element.Name == "Documentation")
{
XmlElement temp = outputDoc.CreateElement("Documentation", "http://schemas.microsoft.com/ado/2013/11/edm/Property");
XmlElement tempc = outputDoc.CreateElement("Summary");
tempc.InnerText = field.InnerText;
temp.AppendChild(tempc);
Console.WriteLine("val:" + temp.Value);
outElement.AppendChild(temp);
}
else if (field_element.Name == "Property")
{
foreach (XmlNode outfield in outElement.ChildNodes)
{
if (outfield.NodeType == XmlNodeType.Comment) continue;
XmlElement outfield_element = (XmlElement)outfield;
if (outfield_element.GetAttribute("Name") == fieldName)
{
outfield.InnerXml = field.InnerXml;//把输入文件的属性 修改到 输出文件里面
break;
}
}
}
}
}
outputDoc.Save(OutFile + "new.edmx");//保存到新文件，也可以保存到原文件，最好先备份原文件。
}
}
tt模版中也要写代码从edmx中读取注释，现在注释已经在edmx文件中了，可以用记事本打开查看的。
关于tt读取edmx中的注释，网上代码很多 ，都可行。
原文地址：http://blog.csdn.net/pukuimin1226/article/details/42174759
