转换DataSet到普通xml的新法

大家知道，用dataset传递的WebService，微软会在各个节点加上schema,所以无法与j2ee，flash兼容，所以我找到了一种转换他们变成普通xml的方法。代码如下：

方法一：

Public Class DataSetToXML : Inherits System.Web.UI.Page

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim objConn As SqlConnection

Dim strSql As String

strSql = "SELECT TOP 10 * FROM Customers"

objConn = New SqlConnection(ConfigurationSettings.AppSettings("ConnectionString"))

Dim sdaCust As New SqlDataAdapter(strSql, objConn)

Dim dstCust As New DataSet()

sdaCust.Fill(dstCust, "Customers")

'Save data to xml file and schema file

dstCust.WriteXML(Server.MapPath("Customers.xml"),XmlWriteMode.IgnoreSchema)

dstCust.WriteXMLSchema(Server.MapPath("Customers.xsd"))

End Sub

这种方法是写入一个xml文件

方法二：

<WebMethod(Description:="所有教室列表")> _

Public Function ListAllRooms() As XmlDocument

Try

m_CpCourseArrange.FillRoomId(m_DsCourseArrange)

'Dim reader As New MemoryStream

Dim doc As New XmlDocument

doc.LoadXml(m_DsCourseArrange.GetXml.ToString)

Return doc

Catch ex As Protocols.SoapException

Throw SoapExceptionE.RaiseException("ListAllRooms", "http://tempuri.org/CourseArrange", ex.Message, "4000", ex.Source, SoapExceptionE.FaultCode.Server)

End Try

End Function

GetXML--Returns the XML representation of the data stored in the DataSet. (MSDN)

Private Shared Sub DemonstrateGetXml()

' Create a DataSet with one table containing two columns and 10 rows.

Dim ds As DataSet = New DataSet("myDataSet")

Dim t As DataTable = ds.Tables.Add("Items")

t.Columns.Add("id", Type.GetType("System.Int32"))

t.Columns.Add("Item", Type.GetType("System.String"))

' Add ten rows.

Dim r As DataRow

Dim i As Integer

For i = 0 To 9

r = t.NewRow()

r("id") = i

r("Item")= "Item" & i

t.Rows.Add(r)

Next

' Display the DataSet contents as XML.

Console.WriteLine( ds.GetXml() )

End Sub

看来以后用dataset传递的时候也不用为它的转换发愁了。