Question

我以前是在搞乱Silverlight和RIA，我使用的是ADO.NET实体数据模型和域上下文。我正在教自己如何从RIA运行存储过程，并且无法使用以前的设置，因此我开始尝试使用LINQ to SQL方法。我做了以下事情：

添加了DBML
拖放我的表和示例存储过程
保存了DBML并构建了重建解决方案和项目文件。
创建域服务并尝试添加dbml。

这是我的DBML alt text

这是我的错误。 Available DataContext / ObjectContext类列表显示为空。我已经多次重建，甚至重新启动了visual studio。 alt text

所以这是我的问题：

是否有一种简单的方法可以使用我丢失的ADO.Net进行存储过程，因此我可以跳过添加LINQtoSQL类。
我错过了添加dbml类并以这种方式添加存储过程的简单方法。

CODE

ZipCodeDataClasses.dbml.layout

<?xml version="1.0" encoding="utf-8"?>
<ordesignerObjectsDiagram dslVersion="1.0.0.0" absoluteBounds="0, 0, 11, 8.5" name="ZipCodeDataClasses">
  <DataContextMoniker Name="/ZipCodeDataClassesDataContext" />
  <nestedChildShapes>
    <classShape Id="de7acfae-754b-4577-b227-3a33198fdc95" absoluteBounds="7.125, 2.375, 2, 1.3862939453125">
      <DataClassMoniker Name="/ZipCodeDataClassesDataContext/ZipCode" />
      <nestedChildShapes>
        <elementListCompartment Id="8744ad5e-7b77-4770-911d-6dc963876e40" absoluteBounds="7.14, 2.835, 1.9700000000000002, 0.8262939453125" name="DataPropertiesCompartment" titleTextColor="Black" itemTextColor="Black" />
      </nestedChildShapes>
    </classShape>
  </nestedChildShapes>
</ordesignerObjectsDiagram>

ZipCodeDataClasses.designer.cs

#pragma warning disable 1591
//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:4.0.30319.1
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace StoredProcedureTest.Web
{
 using System.Data.Linq;
 using System.Data.Linq.Mapping;
 using System.Data;
 using System.Collections.Generic;
 using System.Reflection;
 using System.Linq;
 using System.Linq.Expressions;
 using System.ComponentModel;
 using System;


 [global::System.Data.Linq.Mapping.DatabaseAttribute(Name="ZIPCODES")]
 public partial class ZipCodeDataClassesDataContext : System.Data.Linq.DataContext
 {

  private static System.Data.Linq.Mapping.MappingSource mappingSource = new AttributeMappingSource();

    #region Extensibility Method Definitions
    partial void OnCreated();
    #endregion

  public ZipCodeDataClassesDataContext() : 
    base(global::System.Configuration.ConfigurationManager.ConnectionStrings["ZIPCODESConnectionString"].ConnectionString, mappingSource)
  {
   OnCreated();
  }

  public ZipCodeDataClassesDataContext(string connection) : 
    base(connection, mappingSource)
  {
   OnCreated();
  }

  public ZipCodeDataClassesDataContext(System.Data.IDbConnection connection) : 
    base(connection, mappingSource)
  {
   OnCreated();
  }

  public ZipCodeDataClassesDataContext(string connection, System.Data.Linq.Mapping.MappingSource mappingSource) : 
    base(connection, mappingSource)
  {
   OnCreated();
  }

  public ZipCodeDataClassesDataContext(System.Data.IDbConnection connection, System.Data.Linq.Mapping.MappingSource mappingSource) : 
    base(connection, mappingSource)
  {
   OnCreated();
  }

  public System.Data.Linq.Table<ZipCode> ZipCodes
  {
   get
   {
    return this.GetTable<ZipCode>();
   }
  }

  [global::System.Data.Linq.Mapping.FunctionAttribute(Name="dbo.sp_GetCityByZip")]
  public int sp_GetCityByZip([global::System.Data.Linq.Mapping.ParameterAttribute(Name="ZIP", DbType="NVarChar(10)")] string zIP, [global::System.Data.Linq.Mapping.ParameterAttribute(Name="Return", DbType="NVarChar(26)")] ref string @return)
  {
   IExecuteResult result = this.ExecuteMethodCall(this, ((MethodInfo)(MethodInfo.GetCurrentMethod())), zIP, @return);
   @return = ((string)(result.GetParameterValue(1)));
   return ((int)(result.ReturnValue));
  }
 }

 [global::System.Data.Linq.Mapping.TableAttribute(Name="dbo.ZipCodes")]
 public partial class ZipCode
 {

  private string _City;

  private string _State;

  private int _Zip;

  public ZipCode()
  {
  }

  [global::System.Data.Linq.Mapping.ColumnAttribute(Storage="_City", DbType="VarChar(25)")]
  public string City
  {
   get
   {
    return this._City;
   }
   set
   {
    if ((this._City != value))
    {
     this._City = value;
    }
   }
  }

  [global::System.Data.Linq.Mapping.ColumnAttribute(Storage="_State", DbType="VarChar(2)")]
  public string State
  {
   get
   {
    return this._State;
   }
   set
   {
    if ((this._State != value))
    {
     this._State = value;
    }
   }
  }

  [global::System.Data.Linq.Mapping.ColumnAttribute(Storage="_Zip", DbType="Int NOT NULL")]
  public int Zip
  {
   get
   {
    return this._Zip;
   }
   set
   {
    if ((this._Zip != value))
    {
     this._Zip = value;
    }
   }
  }
 }
}
#pragma warning restore 1591

Answer 1

我放弃了尝试让存储过程与Silerlight一起使用，但是遵循本指南是我最接近实际实现的。我希望它有所帮助。

http://anhonga.wordpress.com/2010/02/17/using-stored-procedures-with-silverlight-4riapocos-part-ii/

如果您找到一种简单的方法来实现存储过程，请告诉我，因为我正在重写LINQ中的几百个过程。

Linq to SQL vs Entity Data Model：获取存储过程运行

1 个答案: