问题描述

winform C# 修改XML文件

在winform中form中的文本框中修改都取的XML文件，修改后，保存时判断修改后的XML是否符合XML基本的格式规范，最后一步的判断如何实现呢？

namespace ManageXMLFile

{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string path;
private void Form1_Load(object sender EventArgs e)
{
path = Path.GetDirectoryName(this.GetType().Assembly.Location) + ""Config"";
DirectoryInfo directories = Directory.CreateDirectory(path);
FileInfo[] files=directories.GetFiles();
lbFileNames.Items.AddRange(files);
if (files.Length > 0)
{
lbFileNames.SetSelected(0 true);
}
}
string selectedFile;
private void lbFileNames_SelectedIndexChanged(object sender EventArgs e)
{
selectedFile = lbFileNames.SelectedItem + """";
txtXMLContext.Visible = false;
webBrowserXMLContext.Visible = true;
webBrowserXMLContext.Url = new Uri(path + """" + selectedFile);
btnUpdate.Text = ""修改"";
}

    private void btnUpdate_Click(object sender EventArgs e)    {        Button btn=(Button)sender;        if (btn.Text == ""修改"")        {            btn.Text = ""保存"";            txtXMLContext.Visible = true;            webBrowserXMLContext.Visible = false;            string selectedFileText = File.ReadAllText(path + ""\"" + selectedFile);            txtpath.Text = path + ""\"" + selectedFile;            txtXMLContext.Text = selectedFileText;        }        else        {            btn.Text = ""修改"";           txtXMLContext.Visible = false;            webBrowserXMLContext.Visible = true;            string saveXMLContext = txtXMLContext.Text;            File.WriteAllText(path + ""\"" + selectedFile saveXMLContext);            webBrowserXMLContext.Url = new Uri(path + ""\"" + selectedFile);        }    }}

}