vb.net怎么写xml的简单介绍
怎样用VB.NET创建一个ipconfig.xml文件
Dim s As String = "ipconfig" vbNewLine " address10.3.11.162/address" vbNewLine "/ipconfig"
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System.IO.File.WriteAllText("C:\我的文件夹\我的文件.xml", s)
你也可以把内容放进textbox中,然后把textbox的内容写进去:
System.IO.File.WriteAllText("C:\我的文件夹\我的文件.xml", textbox1.text)
vb.net中怎么创建xml文件并写数据
DataSet 和 DataTable都有现成的方法：WriteXml
DataTable tb = this.dataGridView1.DataSource as DataTable;
if(tb != null)
{
tb.WriteXml(@"C:\table.xml",true);
return;
}
DataView dv = this.dataGridView1.DataSource as DataView;
if(dv != null)
{
dv.Table.WriteXml(@"C:\table.xml",true);
return;
}
IList list = this.dataGridView1.DataSource as IList;
if(list != null)
{
//to do,如果是IList,就要你自己想办法导出了
//XmlDocument or XmlWriter都可以考虑
}
vb.net操作xml数据库(急)
使用System.XML
Imports Microsoft.VisualBasic
Imports System
Imports System.IO
Imports System.Xml
namespace HowTo.Samples.XML
public class WriteXmlFileSample
private const document as string = "newbooks.xml"
shared sub Main()
Dim myWriteXmlFileSample as WriteXmlFileSample
myWriteXmlFileSample = new WriteXmlFileSample()
myWriteXmlFileSample.Run(document)
end sub
public sub Run(args As String)
Dim myXmlTextReader as XmlTextReader = nothing
Dim myXmlTextWriter as XmlTextWriter = nothing
try
myXmlTextWriter = new XmlTextWriter (args, nothing)
myXmlTextWriter.Formatting = System.Xml.Formatting.Indented
myXmlTextWriter.WriteStartDocument(false)
myXmlTextWriter.WriteDocType("bookstore", nothing, "books.dtd", nothing)
myXmlTextWriter.WriteComment("此文件表示书店库存数据库的另一个片断")
myXmlTextWriter.WriteStartElement("bookstore")
myXmlTextWriter.WriteStartElement("book", nothing)
myXmlTextWriter.WriteAttributeString("genre","autobiography")
myXmlTextWriter.WriteAttributeString("publicationdate","1979")
myXmlTextWriter.WriteAttributeString("ISBN","0-7356-0562-9")
myXmlTextWriter.WriteElementString("title", nothing, "The Autobiography of Mark Twain")
myXmlTextWriter.WriteStartElement("Author", nothing)
myXmlTextWriter.WriteElementString("first-name", "Mark")
myXmlTextWriter.WriteElementString("last-name", "Twain")
myXmlTextWriter.WriteEndElement()
myXmlTextWriter.WriteElementString("price", "7.99")
myXmlTextWriter.WriteEndElement()
myXmlTextWriter.WriteEndElement()
'向文件写 XML 并关闭编写器
myXmlTextWriter.Flush()
myXmlTextWriter.Close()
' 读取返回的文件并进行分析以确保正确生成 XML
myXmlTextReader = new XmlTextReader (args)
FormatXml (myXmlTextReader, args)
catch e as Exception
Console.WriteLine ("异常：{0}", e.ToString())
finally
Console.WriteLine()
Console.WriteLine("对文件 {0} 的处理已完成。", args)
If Not myXmlTextReader Is Nothing
myXmlTextReader.Close()
end if
'关闭编写器
If Not myXmlTextWriter Is Nothing
myXmlTextWriter.Close()
end if
End try
End Sub
private shared Sub FormatXml (reader as XmlTextReader, filename as String)
Dim piCount, docCount, commentCount, elementCount as Integer
Dim attributeCount, textCount, whitespaceCount as Integer
While reader.Read()
Select (reader.NodeType)
case XmlNodeType.ProcessingInstruction:
Format (reader, "ProcessingInstruction")
piCount += 1
case XmlNodeType.DocumentType:
Format (reader, "DocumentType")
docCount += 1
case XmlNodeType.Comment:
Format (reader, "Comment")
commentCount += 1
case XmlNodeType.Element:
Format (reader, "Element")
elementCount += 1
While reader.MoveToNextAttribute()
Format (reader, "Attribute")
end While
if (reader.HasAttributes)
attributeCount += reader.AttributeCount
end if
case XmlNodeType.Text:
Format (reader, "Text")
textCount += 1
case XmlNodeType.Whitespace:
whitespaceCount += 1
End Select
End While
' 显示该文件的统计信息
Console.WriteLine ()
Console.WriteLine("{0} 文件的统计信息", filename)
Console.WriteLine ()
Console.WriteLine("处理指令：" piCount)
Console.WriteLine("文档类型：" docCount)
Console.WriteLine("注释：" commentCount)
Console.WriteLine("元素：" elementCount)
Console.WriteLine("属性：" attributeCount)
Console.WriteLine("文本：" textCount)
Console.WriteLine("空白：" whitespaceCount)
End Sub
private shared Sub Format(byref reader as XmlTextReader , NodeType as String)
' 格式化输出
Console.Write(reader.Depth " ")
Console.Write(reader.AttributeCount " ")
Dim i as Integer
for i = 0 to reader.Depth - 1
Console.Write(Strings.chr(9))
Next
Console.Write(reader.Prefix NodeType "" reader.Name "" reader.Value)
Console.WriteLine()
End Sub
End Class
End Namespace
参考:
如何对Vb.net进行漂亮的XML注释
在紧挨着类或成员的上一行打三个单引号，自动生成XML注释。
你可以使用para来换行。
使用see cref来标明参考项。
vb.net XML文件如何写入
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim f As New FileInfo("d:\doc.xml")
If f.Exists = False Then
f.Create()
f.Refresh()
End If
Dim s As String = ""
Dim sw As StreamWriter = f.CreateText()
s = "?xml version=""1.0"" encoding=""GB2312""?"
sw.WriteLine(s)
sw.WriteLine("doc")
sw.WriteLine(" assembly")
sw.WriteLine("userId34/userId")
sw.WriteLine("userName张三/userName")
sw.WriteLine("qxbz1/qxbz")
sw.WriteLine(" /assembly")
sw.WriteLine("/doc")
sw.Flush()
sw.Close()
Process.Start("d:\doc.xml")
End Sub
End Class
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