【发布时间】:2010-08-20 22:09:05
【问题描述】:
我之前是否在使用 Silverlight 和 RIA,我使用的是 ADO.NET 实体数据模型和域上下文。我正在自学如何从 RIA 运行存储过程,但无法让它与以前的设置一起使用,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 DBML 并构建并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
这是我的错误。 可用的 DataContext/ObjectContext 类 列表显示为空。我已经重建了很多次,甚至重新启动了 Visual Studio。
所以这是我的问题:
- 是否有一种简单的方法可以使用 ADO.Net 执行存储过程,但我错过了该方法,因此我可以跳过添加 LINQtoSQL 类。
- 我是否遗漏了一些非常简单的方法来添加 dbml 类并以这种方式添加存储过程。
代码
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
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标签: linq-to-sql ado.net silverlight-4.0 c#-4.0 wcf-ria-services