VB.NET2005读取XML数据
通过调用CreateDataSetfromXml取得XML数据
Imports System.Xml
Public Const FILE_CONFIG = "MZZ.xml"
Public Const PATH_CONFIG = "\XML\"
Dim dstXML As DataSet
Dim tblXML_DB As DataTable
Dim dtCod As New DataTable
Dim strSQL As String = ""
clsPublic.pstrAppPath = System.Windows.Forms.Application.StartupPath'启动程序路径
'启动程序上级目录（InStrRev是取得最后显示\的位置）
clsPublic.pstrAppPath = Mid(clsPublic.pstrAppPath, 1, InStrRev(clsPublic.pstrAppPath, "\", ) - 1)
'只能启动一个程序
If UBound(Diagnostics.Process.GetProcessesByName(Diagnostics.Process.GetCurrentProcess.ProcessName)) > 0 Then
Exit Sub
End If
'读取XML数据（QDIS节点，作为一个table,所以是dstXML.Tables(0)）
dstXML = CreateDataSetfromXml(FILE_CONFIG)
tblXML_DB = dstXML.Tables(0)
clsDBBase.Uid = tblXML_DB.Rows(0).Item("UserId")
clsDBBase.Psw = tblXML_DB.Rows(0).Item("Password")
clsDBBase.Dsn = tblXML_DB.Rows(0).Item("DataSource")
'（APPL节点，作为一个table,所以是dstXML.Tables(1)）
clsPublic.Timer_Interval = CType(dstXML.Tables(1).Rows(0).Item("Interval"), Integer)
'内存整理
GC.Collect()
Public Function CreateDataSetfromXml(ByVal strFileName As String) As DataSet
Dim xmlDoc As XmlDataDocument = New XmlDataDocument
Dim xmlReader As StreamReader = Nothing
Try
xmlReader = New StreamReader(clsPublic.pstrAppPath & PATH_CONFIG & strFileName)
xmlDoc.DataSet.ReadXml(xmlReader, XmlReadMode.Auto)
Return xmlDoc.DataSet.Copy
Catch ex As Exception
Return Nothing
Finally
Try
If Not xmlReader Is Nothing Then
xmlReader.Close()
xmlReader = Nothing
End If
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