Question

我使用VB XmlWriter.Create（）获取编写器实例然后编写XML，但是一旦创建了XML文件，当我第二次运行程序时它会覆盖它创建的文件。如何在每次运行程序时创建新文件？还有一种方法可以将文件命名为用户输入的消费者ID吗？所以从txtConsumerID中取出文本并将文件命名为它们在此文本框中输入的内容？



     Imports System

     Imports System.Xml  

 Public Class Form1  

 Private Sub saveXML_Click(sender As System.Object, e As System.EventArgs) Handles
 saveXML.Click  

    Dim settings As New XmlWriterSettings()  
    settings.Indent = True  

    ' Initialize the XmlWriter.
    Dim XmlWrt As XmlWriter = XmlWriter.Create("C:\Documents and
    Settings\kck\Desktop\Notification.xml", settings)  

    With XmlWrt  

        ' Write the Xml declaration.
        .WriteStartDocument()  


        ' Write the root element.
        .WriteStartElement("PIAlertMonitor")  


        .WriteStartElement("ConsumerID")
        .WriteString(txtConsumerID.Text.ToString())
        .WriteEndElement()  

        .WriteStartElement("MaxAlerts")
        .WriteString(MaxAlerts.Text.ToString())
        .WriteEndElement()  

        .WriteStartElement("Notification")  

        .WriteStartElement("MailTo")  

        .WriteStartElement("eMail")
        .WriteString(txteMail.Text.ToString())
        .WriteEndElement()  


        ' The end of this person.
        .WriteEndElement()  

        ' Close the XmlTextWriter.
        .WriteEndDocument()
        .Close()  

    End With  

    MessageBox.Show("XML File Saved")  


End Sub

结束课程

Answer 1

您可以每次动态创建一个新文件名，方法是在文件名中添加时间戳，如下所示

C：\ Documents and Settings \ home \ Desktop \ Notification_ [current_system_time_stamp] .xml

避免替换现有文件。

使用XmlWriter.Create（），如何让它不覆盖它正在创建的文件？

1 个答案: