I am using a very stupid method, but can help beginners understand the process of accessing the XML node.
One XML file is known (bookstore.xml) is as follows:
Oberon's legacy </ title> <author> Corets, EVA </ author> <price> 5.95 </ price> </ book> </ bookstore></p>
<p>1. Insert a <book> node into the <BookStore> node:</p>
<p>XmlDocument xmlDoc = new XmlDocument (); xmlDoc.Load ( "bookstore.xml"); XmlNode root = xmlDoc.SelectSingleNode ( "bookstore"); // Find <bookstore> XmlElement xe1 = xmlDoc.CreateElement ( "book"); / / Create a <book> node Xe1.setttribute ("Genre", "Li Zanhong"); // Set the Node Genre Attribute Xe1.Setattribute ("ISBN", "2-3631-4"); // Set the node ISBN Attribute Xmlelement Xesub1 = XMLDoc.createElement ("Title"); Xesub1.innerText = "CS From Getting Started to Wen"; // Settings Text Node Xe1.AppendChild (Xesub1); // Add to <Book> Node XMLELEment XESUB2 = XMLDOC .CreateElement ("author"); Xesub2.innerText = "Waiting"; Xe1.Appendchild (Xesub2); XMlelement Xesub3 = XmLDoc.createElement ("Price"); XESUB3.NNERTEXT = "58.3"; Xe1.Appendchild (Xesub3) Root.Appendchild (xe1); // Add to <BookStore> Node XMLDoc.save ("BookStore.xml");</p>
<p>/ / ================ result is:</p>
<p><? XML Version = "1.0" encoding = "GB2312"?> <bookstore> <book genre = "fantasy" ISBN = "2-3631-4"> <title> Oberon's legacy </ title> <author> Corets, EVA </ author> <price> 5.95 </ price> </ book> <book genre = "李赞红" ISBN = "2-3631-4"> <title> CS from getting started to master </ title> <author> 捷</ author> <price> 58.3 </ price> </ book> </ bookstore> 2, modify the node: Change the GENRE value of the GENRE attribute value "Le Li Zanhong" to "Update Li Zanli", the child of the node The text of the node <author> is modified to "Ya Sheng".</p>
<p>XmlNodelist NodeList = XmLDoc.selectsinglenode ("BookStore"). ChildNodes; // Get all child nodes for the BookStore node Foreach (XMLNode Xn In nodelist) // Traverse all child nodes {xmlelement XE = (xmlelement) xn; // Fander node Type Convert to XMLELEMENT Type IF (Xe.GetaTRibute ("Genre") == "Li Zanhong") // If the GENRE attribute value is "Li Zanhong" {xe.setttribute ("genre", "Update Li Zan Hong"); // Modify This property is "Update Li Zanli" XMLNodeList NLS = Xe.childNodes; / / Continue all child nodes of the XE child node Foreach (XMLNode XN1 IN NLS) // Traversed {XMLELEMENT XE2 = (XMLELEMENT) XN1; // Conversion Type IF ( XE2.NAME == "Author") // If {xe2.innertext = "Assembly"; // modify break; // can be used to find out.}} Break;}} xmldoc.save. XML "); // Save.</p>
<p>/ / =================</p>
<p>The last result is:</p>
<p><? XML Version = "1.0" encoding = "GB2312"?> <bookstore> <book genre = "fantasy" ISBN = "2-3631-4"> <title> Oberon's legacy </ title> <author> Corets, EVA </ author> <price> 5.95 </ price> </ book> <book genre = "Update Li Zanli" ISBN = "2-3631-4"> <title> CS from getting started </ title> <author> Sheng </ author> <price> 58.3 </ price> </ book> </ bookstore> 3, delete <book genre = "fantasy" ISBN = "2-3631-4"> Node GENRE attribute, delete <book genre = "Update Li Zanli" ISBN = "2-3631-4"> node.</p>
<p>XMLNodeList XNL = XmLDoc.selectsinglenode ("BookStore"). ChildNodes; Foreach (XMLNode XN IN XL) {XMLELEMENT XE = (XMLElement) xn;</p>
<p>IF (Xe.GetaTribute ("genre") == "fantasy")</p>
<p>{</p>
<p>Xe.Removettribute ("genre"); // Delete GENRE attribute</p>
<p>}</p>
<p>Else IF (Xe.GetaTRibute ("genre") == "Update Li Zanli")</p>
<p>{</p>
<p>Xe.removeAll (); // Delete the entire content of the node</p>
<p>}</p>
<p>}</p>
<p>XMLDoc.save ("BookStore.xml");</p>
<p>/ / =====================</p>
<p>The last result is:</p>
<p><? XML Version = "1.0" encoding = "GB2312"?> <bookstore> <book isbn = "2-3631-4"> <title> Oberon's legacy </ title> <author> corets, evA </ author> < Price> 5.95 </ price> </ book> <book> </ book> </ bookstore></p>
<p>4, display all data.</p></div><div class="text-center mt-3 text-grey">
转载请注明原文地址:https://www.9cbs.com/read-104802.html</div><div class="plugin d-flex justify-content-center mt-3"></div><hr><div class="row"><div class="col-lg-12 text-muted mt-2"><i class="icon-tags mr-2"></i><span class="badge border border-secondary mr-2"><h2 class="h6 mb-0 small"><a class="text-secondary" href="tag-2.html">9cbs</a></h2></span></div></div></div></div><div class="card card-postlist border-white shadow"><div class="card-body"><div class="card-title"><div class="d-flex justify-content-between"><div><b>New Post</b>(<span class="posts">0</span>)
</div><div></div></div></div><ul class="postlist list-unstyled">
</ul></div></div><div class="d-none threadlist"><input type="checkbox" name="modtid" value="104802" checked /></div></div></div></div></div><footer class="text-muted small bg-dark py-4 mt-3" id="footer"><div class="container"><div class="row"><div class="col">CopyRight © 2020 All Rights Reserved
</div><div class="col text-right">Processed:
<b>0.035</b>, SQL:
<b>9</b></div></div></div></footer><script src="./lang/en-us/lang.js?2.2.0"></script><script src="view/js/jquery.min.js?2.2.0"></script><script src="view/js/popper.min.js?2.2.0"></script><script src="view/js/bootstrap.min.js?2.2.0"></script><script src="view/js/xiuno.js?2.2.0"></script><script src="view/js/bootstrap-plugin.js?2.2.0"></script><script src="view/js/async.min.js?2.2.0"></script><script src="view/js/form.js?2.2.0"></script><script>
var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'Eprr0eTFVjkqnd70XZpLXgVcuEGZEYhUYWzTlHtP0Rv_2BCWa2GxTYo14qsvQmmEmw3GWTX3GjHj32JusRqWKz2A_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
