从DACPAC文件中读取元数据

SQL数据库项目生成时会生成dacpac文件，可从中读出所需的元数据，进行一些转换（如生成数据字典）

1. var model = new TSqlModel(@"D:/kljob/CardLan/CardLanDB/bin/Debug/cardlandb.dacpac");
2.  
3. xmlWriterSettings settings = new XmlWriterSettings();
4. settings.Indent = true;
5. settings.Encoding = new UTF8Encoding(false);
6. settings.NewLineChars = Environment.NewLine;
7. MemoryStream ms = new MemoryStream();
8. XmlWriter writer=XmlWriter.Create(ms,settings);
9.  
10. int startID=31;
11. writer.WriteStartDocument();
12. writer.WriteStartElement("root");
13. foreach (var s innew ModelTypeClass[]{ModelSchema.PRocedure ,ModelSchema.View}){
14.    var allTables = model.GetObjects(DacQueryScopes.UserDefined,s );
15.    var tableScripts = from t in allTables
16.                select t ;
17.       foreach(var x in tableScripts){
18.          writer.WriteStartElement("QueryObject");
19.          writer.WriteElementString("ObjectID",startID++.ToString());
20.          writer.WriteElementString("SourceType", x.ObjectType.Name);
21.          writer.WriteElementString("ObjectName", x.Name.Parts[1]);
22.          writer.WriteElementString("Remark","");
23.  
24.             int id=0;
25.             foreach(var c in x.GetChildren())
26.             {
27.                writer.WriteStartElement("QueryObjectCols");
28.                writer.WriteElementString("Title",c.Name.Parts[2]);
29.                writer.WriteElementString("ObjColID",id++.ToString());
30.                writer.WriteElementString("Field",c.Name.Parts[2]);
31.                writer.WriteElementString("Width","80");
32.                writer.WriteElementString("Sortable","1");
33.                if(s==ModelSchema.Procedure)
34.                   writer.WriteElementString("ValueType",c.GetReferenced(Parameter.DataType).First().Name.Parts[0]);
35.                else
36.                   writer.WriteElementString("ValueType",c.GetReferenced().First().GetReferenced(Column.DataType).First().Name.Parts[0]);
37.                writer.WriteElementString("ShoWorder","1");
38.                writer.WriteEndElement();
39.  
40.             }
41.          writer.WriteEndElement();
42.          break;
43.       }
44.  
45.  }
46.  writer.WriteEndElement();
47.  writer.WriteEndDocument();
48. writer.Close();
49. string xml = Encoding.UTF8.GetString(ms.ToArray());
50. Console.WriteLine(xml);
51. //tableScripts.Dump();