Web服务中的xml数据连接 [英] xml data connection in Web Services
问题描述
我正在尝试开发一个Web服务来为产品公开一个XML文件，以便客户端应用程序使用并填充一个
数据网格。结束。
我已经用简单的数学成功测试了网络服务
返回如下：
<％@ WebService Language = " VB"类= QUOT; aWebService" ％>
Imports System.Web
Imports System.Web.Services
Imports System.Web.Services.Protocols
< WebService（Namespace：=" http://tempuri.org/"）_
< WebServiceBinding（ConformsTo：= WsiProfiles.BasicPr ofile1_1）_
公共类aWeb服务
继承System.Web.Services.WebService
< System.Web.Services.WebMethod（）_
公共功能SquareRootTimesSide（ByVal对角线为双倍）_
双倍
返回（对角线* System.Math.Sqrt（2））
结束功能
结束班级
所以我想我会尝试公开结构化数据。我主要使用XML文件
作为我的数据源，所以我想坚持下去。
我已成功实现将XML文件读入
本地.aspx页面，包含以下代码：
< script runat =" server">
私有函数MakeDataView（）as DataView
Dim myDataSet As New DataSet（）
myDataSet.ReadXml（Server.MapPath（" Manufacturers.xm l"））
Dim view As DataView = New DataView （myDataSet.Tables（0））
view.AllowDelete = False
view.AllowEdit = False
view.AllowNew = False
view.Sort =" name ASC"
返回视图
结束函数
Sub Page_Load（ByVal sender As Object， ByVal e As EventArgs）
Dim view as DataView = MakeDataView（）
dgManufacturers.DataSource = view
dgManufacturers.AllowSorting = True
dgManufacturers.DataBind（）
结束子
< / script>
如何将服务器端代码编写为Web方法？
非常感谢!!
Brock
I''m trying to develop a web service to expose an XML file for product
manufacturers for a client application to consume and populate a
datagrid on the consuming end.
I have successfully tested the web service with simple mathematic
returns like:
<%@ WebService Language="VB" Class="aWebService" %>
Imports System.Web
Imports System.Web.Services
Imports System.Web.Services.Protocols
<WebService(Namespace := "http://tempuri.org/")_
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicPr ofile1_1)_
Public Class aWebService
Inherits System.Web.Services.WebService
<System.Web.Services.WebMethod()_
Public Function SquareRootTimesSide(ByVal Diagonal As Double) _
As Double
Return (Diagonal * System.Math.Sqrt(2))
End Function
End Class
So I thought I''d try exposing structured data. I use mostly XML files
for my datasources so I''d like to stick with that.
I have successfully implemented reading the XML file into a
local .aspx page with this code:
<script runat="server">
Private Function MakeDataView() as DataView
Dim myDataSet As New DataSet()
myDataSet.ReadXml(Server.MapPath("Manufacturers.xm l"))
Dim view As DataView = New DataView(myDataSet.Tables(0))
view.AllowDelete = False
view.AllowEdit = False
view.AllowNew = False
view.Sort = "name ASC"
Return view
End Function
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim view as DataView = MakeDataView()
dgManufacturers.DataSource = view
dgManufacturers.AllowSorting = True
dgManufacturers.DataBind()
End Sub
</script>
How can I write the server-side code as a web method?
Many thanks!!
Brock
推荐答案
" Brock" < wa ******** @ yahoo.comwrote in message
news：0b ********************** ************ @ r38g2000 prr.googlegroups.com ...
"Brock" <wa********@yahoo.comwrote in message
news:0b**********************************@r38g2000 prr.googlegroups.com...
>
怎么能我把服务器端代码写成web方法？
>
How can I write the server-side code as a web method?
你不是。您的Web服务代码将关注Web服务。
不是DataView或DataSet。
将您的webmethod编码为函数返回类型System.Xml.XmlDocument 。
然后做这样的事情：
Dim doc As New XmlDocument
doc.Load（Server.MapPath（" Manufacturers.xml））
返回doc
-
John Saunders | MVP - 连接系统开发人员
You don''t. Your web service code will be concerned with web service things.
Not DataView or DataSet.
Code your webmethod as a function returning type System.Xml.XmlDocument.
Then do something like this:
Dim doc As New XmlDocument
doc.Load(Server.MapPath("Manufacturers.xml"))
Return doc
--
John Saunders | MVP - Connected System Developer
在您的行中：Dim doc As New XmlDocument" " XmlDocument的"是不是
被接受...应该是XmlDataSource？
In" doc.Load（Server.MapPath（" Manufacturers。） xml"））''我得到'''公开
事件加载（sender As Object，e As System.EventArgs）''是一个事件，而
不能直接打电话。使用''RaiseEvent''语句来举起一个
的事件。
我试了这个但没有运气：
< System.Web.Services.WebMethod（）_
私人函数GetManufacturers（ByVal sender As Object，ByVal e
As System.EventArgs）处理GetManufacturers
Dim doc As New XmlDataSource
doc.Load（Server.MapPath（" Manufacturers.xml））
返回doc
结束功能
In your line: "Dim doc As New XmlDocument" "XmlDocument" is not
being accepted... should this be "XmlDataSource"?
In "doc.Load(Server.MapPath("Manufacturers.xml")) '' I get "''Public
Event Load(sender As Object, e As System.EventArgs)'' is an event, and
cannot be called directly. Use a ''RaiseEvent'' statement to raise an
event."
I tried this with no luck:
<System.Web.Services.WebMethod()_
Private Function GetManufacturers(ByVal sender As Object, ByVal e
As System.EventArgs) Handles GetManufacturers
Dim doc As New XmlDataSource
doc.Load(Server.MapPath("Manufacturers.xml"))
Return doc
End Function
>
将您的webmethod编码为函数返回类型System.Xml.XmlDocument 。
然后做这样的事情：
Dim doc As New XmlDocument
doc.Load（Server.MapPath（" Manufacturers.xml））
返回doc
-
John Saunders | MVP - Connected System Developer
>
Code your webmethod as a function returning type System.Xml.XmlDocument.
Then do something like this:
Dim doc As New XmlDocument
doc.Load(Server.MapPath("Manufacturers.xml"))
Return doc
--
John Saunders | MVP - Connected System Developer
" Brock" < wa ******** @ yahoo.com写了留言
新闻：7b ********************** ************ @ i20g2000 prf.googlegroups.com ...
"Brock" <wa********@yahoo.comwrote in message
news:7b**********************************@i20g2000 prf.googlegroups.com...
在你的行中：Dim doc As New XmlDocument" " XmlDocument的"是不是
被接受...应该是XmlDataSource？
In" doc.Load（Server.MapPath（" Manufacturers。） xml"））''我得到'''公开
事件加载（sender As Object，e As System.EventArgs）''是一个事件，而
不能直接打电话。使用''RaiseEvent''语句来举起一个
的事件。
我试了这个但没有运气：
In your line: "Dim doc As New XmlDocument" "XmlDocument" is not
being accepted... should this be "XmlDataSource"?
In "doc.Load(Server.MapPath("Manufacturers.xml")) '' I get "''Public
Event Load(sender As Object, e As System.EventArgs)'' is an event, and
cannot be called directly. Use a ''RaiseEvent'' statement to raise an
event."
I tried this with no luck:
对不起。试试System.Xml.XmlDocument。您可能需要参考System.Xml
汇编。
-
John Saunders | MVP - 连接系统开发人员
Sorry. Try System.Xml.XmlDocument. You may need to reference the System.Xml
assembly.
--
John Saunders | MVP - Connected System Developer
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