[英]How to read and modify an xml file using vb.net and linq
我只能閱讀和編輯第一個聲明,但是我需要在所有聲明中都執行相同操作的代碼。 它必須在每個聲明中計算行數,並在每行中寫一個行號。 下面是xml文件;
<ClaimBatch>
<Claims>
<Claim>
<claimGross>4947.7200</claimGross>
<numLines>2</numLines>
<Line>
<lineNo>1</lineNo>
<benefitAmount>2473.8600</benefitAmount>
<levy>247.3860</levy>
</Line>
<Line>
<lineNo>2</lineNo>
<benefitAmount>2473.8600</benefitAmount>
<levy>247.3860</levy>
</Line>
</Claim>
<Claim>
<claimGross>549.6800</claimGross>
<numLines>2</numLines>
<Line>
<benefitAmount>274.8400</benefitAmount>
<levy>48.0976</levy>
</Line>
<Line>
<benefitAmount>274.8400</benefitAmount>
<levy>48.0976</levy>
</Line>
</Claim>
</Claims>
</ClaimBatch>
下面是我到目前為止使用的代碼;
Public Sub writeLineNo()
Dim counter As Integer = 1
Dim reader As XmlReader = XmlReader.Create("C:\SQLQUERIS\" & cmbschemetxt & " " & dateStr & ".xml")
xmlDoc = XDocument.Load("C:\SQLQUERIS\" & cmbschemetxt & " " & dateStr & ".xml")
For Each line In xmlDoc.<ClaimBatch>.<Claims>.<Claim>.<Line>
If reader.ReadToFollowing("Line") Then
reader.MoveToContent()
While reader.ReadToNextSibling("Line")
line.AddFirst(<lineNo><%= counter %></lineNo>)
counter += 1
End While
End If
Next
reader.Close()
xmlDoc.Save("C:\SQLQUERIS\" & cmbschemetxt & " " & dateStr & ".xml")
End Sub
只需使用兩個For Each
循環。 一個在每個<Claim>
上循環,一個在每個<Claim>
內的每個<Claim>
<line>
循環。
鑒於以下XML
Dim xml = <ClaimBatch>
<Claims>
<Claim>
<claimGross>4947.7200</claimGross>
<numLines>2</numLines>
<Line>
<benefitAmount>2473.8600</benefitAmount>
<levy>247.3860</levy>
</Line>
<Line>
<benefitAmount>2473.8600</benefitAmount>
<levy>247.3860</levy>
</Line>
</Claim>
<Claim>
<claimGross>549.6800</claimGross>
<numLines>2</numLines>
<Line>
<benefitAmount>274.8400</benefitAmount>
<levy>48.0976</levy>
</Line>
<Line>
<benefitAmount>274.8400</benefitAmount>
<levy>48.0976</levy>
</Line>
</Claim>
</Claims>
</ClaimBatch>
使用嵌套循環,例如:
For Each claim in xml.<Claims>.<Claim>
Dim counter = 1
For Each line in claim.<Line>
line.AddFirst(<lineNo><%= counter %></lineNo>)
counter += 1
Next
Next
xml
現在是:
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