您的位置：首页 > 其它

WebEngine项目中CMPServices类库的用法简介

2007-03-22 15:47 465 查看

由于WebEngine项目将完全采用CMP做底层，所以有必要对CMPServices类库的用法作一下简单的介绍。

1、web.config文件中的相关配置
<configuration>
<configSections>
<section name="DataConfig" type="Lanx.WebEngine.CMPServices.CMPConfigurationHandler, Lanx.WebEngine.CMPServices"/>
</configSections>
<DataConfig>
<ContainerMappingSet>

<ContainerMapping>
</ContainerMapping>
</ContainerMappingSet>
</DataConfig>
</configuration>
2、命名空间的引用方式
using Lanx.WebEngine.CMPServices;
3、持久对象类示例
using System;
using System.Data;

using Lanx.WebEngine.CMPServices;

namespace Lanx.WebEngine.ProductCatalog.Data
{
/// <summary>
/// ProductBrowseSet负责存储产品列表显示的数据集。
/// </summary>
public class ProductBrowseSet : PersistableObjectSet
{
private int categoryId;
private string searchKey;

public int CategoryId
{
get
{
return categoryId;
}
set
{
categoryId = value;
}
}

public string SearchKey
{
get
{
return searchKey;
}
set
{
searchKey = value;
}
}

public override void FinalizeData()
{
ProductBrowseSet.FinalizeData( internalData );
}

new public static void FinalizeData( DataSet scratchData )
{
// perform finalization on scratchData.
}
}
}
4、CMP元数据示例
<configuration>
<DataConfig>
<ContainerMappingSet>

<ContainerMapping>
<ContainerMappingId>QuickSearch</ContainerMappingId>
<ContainedClass>ProductBrowseSet</ContainedClass>
<Select>
<CommandName>sp_Products_QuickSearch</CommandName>
<Parameter>
<ClassMember>SearchKey</ClassMember>
<ParameterName>@searchKey</ParameterName>
<DbTypeHint>Varchar</DbTypeHint>
<ParamDirection>Input</ParamDirection>
<Size>200</Size>
</Parameter>
</Select>
</ContainerMapping>
</ContainerMappingSet>
</DataConfig>
</configuration>
5、存储过程写法示例
/**** 产品目录快速搜索 ****/
CREATE PROCEDURE sp_Products_QuickSearch
@SearchKey varchar(200)
AS
SELECT Products.ProductId, Name, ShortDescription, LongDescription, Deleted, ProductSkus.RetailPrice, ProductSkus.ActualPrice, ProductSkus.Description SkuDesc, ProductSkus.SKU, Products.CategoryId,
ParentCategoryId = ( SELECT ParentCategoryId FROM Products_Categories cats WHERE cats.CategoryId = Products.CategoryId )
From Products_Products Products
INNER JOIN ProductSKUs ON Products.ProductId = ProductSKUs.ProductId
WHERE NAME LIKE '%' + @SearchKey+ '%'
OR ShortDescription LIKE '%'+@SearchKey+'%'
OR LongDescription LIKE '%'+@SearchKey+'%'
OR ProductSkus.Description LIKE '%'+@SearchKey+'%'
ORDER BY Name ASC, ProductSkus.ActualPrice DESC
GO

6、CMP类库使用示例
#region 产品快速搜索容器

/// <summary>
/// 产品快速搜索
/// </summary>
/// <param name="searchKey">搜索关键字</param>
/// <returns>产品搜索结果列表</returns>
public static DataSet QuickSearch( string searchKey )
{
SqlPersistenceContainer spc = new SqlPersistenceContainer( CMPConfigurationHandler.ContainerMaps["QuickSearch"]);
ProductBrowseSet pbs = new ProductBrowseSet();
pbs.SearchKey = searchKey;
spc.Select( pbs );
pbs.FinalizeData();
return pbs.ResultSet;
}

#endregion
7、全局文件要做的内容如下：
a)Global.asax文件中<%@ Application Codebehind="Global.asax.cs" %>
b)Global.asax.cs文件中
using System;
using System.Collections;
using System.ComponentModel;
using System.Web;
using System.Web.SessionState;
using System.Data;
using System.Data.SqlClient;
using System.Web.Caching;

using Lanx.WebEngine.ConfigurationServices;
using Lanx.WebEngine.ProductCatalog.Business;

namespace Lanx.WebEngine
{
/// <summary>
/// Summary description for Global.
/// </summary>
public class Global : System.Web.HttpApplication
{
public Global()
{
InitializeComponent();
}

protected void Application_Start(Object sender, EventArgs e)
{
System.Configuration.ConfigurationSettings.GetConfig("DataConfig");

SiteProfile.DefaultDataSource = System.Configuration.ConfigurationSettings.AppSettings["DefaultDataSource"];

SiteProfile.DbTypeHints["Varchar"] = System.Data.SqlDbType.VarChar;
SiteProfile.DbTypeHints["Int"] = System.Data.SqlDbType.Int;
SiteProfile.DbTypeHints["Date"] = System.Data.SqlDbType.DateTime;
SiteProfile.DbTypeHints["Text"] = System.Data.SqlDbType.Text;
SiteProfile.DbTypeHints["Bit"] = System.Data.SqlDbType.Bit;
SiteProfile.DbTypeHints["Money"] = System.Data.SqlDbType.Money;

DataTable categorySet = ProductCatalog.GetCategories();

Context.Cache.Insert("Categories", categorySet );
}

protected void Session_Start(Object sender, EventArgs e)
{

}

protected void Application_BeginRequest(Object sender, EventArgs e)
{

}

protected void Application_EndRequest(Object sender, EventArgs e)
{

}

protected void Application_AuthenticateRequest(Object sender, EventArgs e)
{

}

protected void Application_Error(Object sender, EventArgs e)
{

}

protected void Session_End(Object sender, EventArgs e)
{

}

protected void Application_End(Object sender, EventArgs e)
{

}

#region Web Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
}
#endregion
}
}
8、原设计方式是把所有的CMP元数据都写在web.config文件中。准备修改为在web.config文件中记录各模板元数据储存的XML文件路径。

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航