xml-怎么了-我听不懂 [英] Xml - What's wrong - I cant understand

问题描述

我有一个问题，我无法解决.

当我尝试将项目添加到XML文件时，程序可以正常运行，并且不会中断.


我用来创建XML文件的子目录:

Hi, I have a question, which i can''t solve.

When I try to add a item to my XML file, the program do all right, and don''t break.


The sub I use to creat my XML file:

Sub pastaxml()
    System.IO.Directory.CreateDirectory(pasta)
    Dim xmlw As New XmlTextWriter(bdFile, System.Text.Encoding.UTF8)
    xmlw.Formatting = Formatting.Indented
    xmlw.WriteStartDocument()
    xmlw.WriteStartElement("musicas")
    xmlw.WriteEndElement()
    xmlw.WriteEndDocument()
    xmlw.Flush()
    xmlw.Close()
End Sub

我用来尝试添加新项目的子项目:

The sub I use to try to add the new item:

Form1.numero = Form1.numero + 1
nome = TextBox1.Text
compositor = TextBox2.Text
prgutilizado = TextBox3.Text
ano = TextBox4.Text
arranjo = TextBox5.Text
tipo = ComboBox1.Text
ficheiro = TextBox7.Text
pdf = TextBox7.Text
Dim xDoc = XDocument.Load(Form1.bdFile)
Dim parent = xDoc.<musicas>.FirstOrDefault()
Dim element = <musicas id=<%= numero %> nome=<%= nome %> compositor=<%= compositor %>         programautilizado=<%= prgutilizado %> ano=<%= ano %> arranjo=<%= arranjo %> tipo=<%= arranjo %> ficheiro=<%= ficheiro %> pdf=<%= pdf %>/>
parent.Add(element)

有人可以向我解释我在做什么错.

请帮我解决这个问题，我厌倦了一次又一次的尝试.


PS:我的英语不是很完美，如果我在文本中有任何错误，请告诉我.

Can someone explain to me what I am doing wrong.

Please help me to solve this, I''m tired of trying and trying again.


PS: My english isnt'' perfect, if I have any errors in text please told me.

推荐答案

如果您发布的代码显示正确，则您试图直接在代码中构建XML.不支持.相反，您可以例如创建一个字符串并在该字符串内定义xml.例如

If the code you''ve posted is displayed correctly, you''re trying to build a XML directly in the code. That isn''t supported. Instead you can for example create a string and define the xml inside the string. For example

...
Dim element = "<musicas id=<%= numero %> nome=<%= nome %> compositor=<%= compositor %>         programautilizado=<%= prgutilizado %> ano=<%= ano %> arranjo=<%= arranjo %> tipo=<%= arranjo %> ficheiro=<%= ficheiro %> pdf=<%= pdf %>/>"
...

大声笑，我忘了一行.

Lol, I forget a line.

xDoc.Save(bdfile)

抱歉

sorry

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