在vb網絡中讀取xml通過水晶報告？

Question

我需要這個來自動調整xml文件。無需驗證它。又怎樣？

Dim document As XDocument = XDocument.Load("C:\Purchase Request Setup\Crystal reports\crptPurchaseRequest.xml") 

這是如何讀取xml的？

或

dt.ReadXml("C:\Purchase Request Setup\Crystal reports\crptPurchaseRequest.xml") 

Answer 1

有幾種方法來驗證XML ...

Public Shared Function IsValidXml(xmlString As String) As Boolean 
    Dim tagsWithData As New Regex("<\w+>[^<]+</\w+>") 

    If String.IsNullOrEmpty(xmlString) OrElse tagsWithData.IsMatch(xmlString) = False Then 
     Return False 
    End If 

    Try 
     Dim xmlDocument As New XmlDocument() 
     xmlDocument.LoadXml(xmlString) 
     Return True 
    Catch xmlException As XmlException 
     Return False 
    End Try 
End Function 

注：從here

採取或你可以簡單地處理該異常

Try 
    Dim document As XDocument = XDocument.Load("C:\Purchase Request Setup\Crystal reports\crptPurchaseRequest.xml") 
Catch ex As XmlException 'Handle the exception 
    'Probably poorly formed XML... 
End Try