我必须隐藏具有不同ID的两个特定div之间的所有内容。
例如：
<div id="a1">Hi</div>
<div>Some Random Text</div>
<div id="a2">Hello</div>
与上例相似，我想隐藏id a1和a2之间的div。
答案 0 :(得分：3)
您可以使用nextUntil()实现此目的。在一行中：
$("#a1").nextUntil("#a2").hide();
示例：
$(document).ready(function() {
$("#hide").click(function() {
var hideElement = $("#a1").nextUntil("#a2");
hideElement.hide();
});
});
<div id="a1">Hi</div>
<div>Some Random Text</div>
<div>Some Random Text</div>
<div id="a2">Hello</div>
<button id="hide">hide</button>
请注意，nextUntil()不包含杂散文本节点，请参阅this question以获取解决方案。
答案 1 :(得分：2)
$('#a1').hide().nextAll().each(function() {
$(this).hide();
if ($(this).attr('id') === 'a2') {
return false;
}
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>HELLO</div>
<div id="a1">Hi</div>
<div>Some Random Text</div>
<div id="a2">Hello</div>
<div>BYE</div>
答案 2 :(得分：2)
现在你可以在// Dropzone class:
var myDropzone = new Dropzone("div#myId", { url: "/file/post"});
// jQuery
$("div#myId").dropzone({ url: "/file/post" });
css #a1, #a1 ~ #a2{display:none;}
答案 3 :(得分：0)
如果cotrols都是兄弟姐妹，您可以使用.nextUntil()或.prevUntil() jQuery选择器。有关详细信息，请参阅this或this
但是，如果控件不共享同一个父级，则没有简单的选择器。您必须创建一种方法来查找控件的父级，并且可以找到他们的父母等。
答案 4 :(得分：0)
使用简单的jquery，
$("#a1+div").hide();
或使用css
#a1+div{
display: none;
}
如果你想删除这两个div之间的所有内容，试试这个，
$("#a1").nextAll().each(function(){
if($(this).attr("id") != "a2"){
$(this).hide();
}
else{
//element found with id 'a2' so exit;
return false;
}
});
答案 5 :(得分：0)
如果你只使用css隐藏它会更好。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
namespace EncryptXmlTest1
{
class Program
{
static void Main(string[] args)
{
RijndaelManaged key = null;
try
{
// Create a new Rijndael key.
key = new RijndaelManaged();
// Load an XML document.
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.PreserveWhitespace = true;
xmlDoc.Load("test.xml");
// Encrypt the "creditcard" element.
//Encrypt(xmlDoc, "creditcard", key);
EncryptMultiple(xmlDoc, "creditcard", key);
Console.WriteLine("The element was encrypted");
Console.WriteLine(xmlDoc.InnerXml);
//Decrypt(xmlDoc, key);
DecryptMultiple(xmlDoc, key);
Console.WriteLine("The element was decrypted");
Console.WriteLine(xmlDoc.InnerXml);
Console.ReadKey();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
// Clear the key.
if (key != null)
{
key.Clear();
}
}
}
public static void Encrypt(XmlDocument Doc, string ElementName, SymmetricAlgorithm Key)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementName == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Key == null)
throw new ArgumentNullException("Alg");
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement elementToEncrypt = Doc.GetElementsByTagName(ElementName)[0] as XmlElement;
XmlNodeList elementsToEncrypt = Doc.GetElementsByTagName(ElementName);
// Throw an XmlException if the element was not found.
if (elementsToEncrypt == null)
{
throw new XmlException("The specified elements were not found");
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// symmetric key.
//////////////////////////////////////////////////
EncryptedXml eXml = new EncryptedXml();
byte[] encryptedElement = eXml.EncryptData(elementToEncrypt, Key, false);
////////////////////////////////////////////////
// Construct an EncryptedData object and populate
// it with the desired encryption information.
////////////////////////////////////////////////
EncryptedData edElement = new EncryptedData();
edElement.Type = EncryptedXml.XmlEncElementUrl;
// Create an EncryptionMethod element so that the
// receiver knows which algorithm to use for decryption.
// Determine what kind of algorithm is being used and
// supply the appropriate URL to the EncryptionMethod element.
string encryptionMethod = null;
if (Key is TripleDES)
{
encryptionMethod = EncryptedXml.XmlEncTripleDESUrl;
}
else if (Key is DES)
{
encryptionMethod = EncryptedXml.XmlEncDESUrl;
}
if (Key is Rijndael)
{
switch (Key.KeySize)
{
case 128:
encryptionMethod = EncryptedXml.XmlEncAES128Url;
break;
case 192:
encryptionMethod = EncryptedXml.XmlEncAES192Url;
break;
case 256:
encryptionMethod = EncryptedXml.XmlEncAES256Url;
break;
}
}
else
{
// Throw an exception if the transform is not in the previous categories
throw new CryptographicException("The specified algorithm is not supported for XML Encryption.");
}
edElement.EncryptionMethod = new EncryptionMethod(encryptionMethod);
// Add the encrypted element data to the
// EncryptedData object.
edElement.CipherData.CipherValue = encryptedElement;
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml.ReplaceElement(elementToEncrypt, edElement, false);
}
public static void EncryptMultiple(XmlDocument Doc, string ElementName, SymmetricAlgorithm Key)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementName == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Key == null)
throw new ArgumentNullException("Alg");
XmlNodeList elementsToEncrypt = Doc.GetElementsByTagName(ElementName);
if (elementsToEncrypt == null)
{
throw new XmlException("The specified elements were not found");
}
//XmlNodeList elementsToEncryptCloned = Doc.GetElementsByTagName(ElementName);
List<string> ids = new List<string>();
for (int i = 0; i < elementsToEncrypt.Count; i++)
{
string attrVal = elementsToEncrypt[i].Attributes["id"].Value;
ids.Add(attrVal);
}
foreach(string id in ids)
{
string query = string.Format("//*[@id='{0}']", id);
XmlElement elementFetched = (XmlElement)Doc.SelectSingleNode(query);
if (elementFetched == null)
continue;
EncryptedXml eXml = new EncryptedXml();
byte[] encryptedElement = eXml.EncryptData(elementFetched, Key, false);
EncryptedData edElement = new EncryptedData();
edElement.Type = EncryptedXml.XmlEncElementUrl;
edElement.EncryptionMethod = new EncryptionMethod(EncryptedXml.XmlEncAES256Url);
edElement.CipherData.CipherValue = encryptedElement;
EncryptedXml.ReplaceElement(elementFetched, edElement, false);
}
}
public static void Decrypt(XmlDocument Doc, SymmetricAlgorithm Alg)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (Alg == null)
throw new ArgumentNullException("Alg");
// Find the EncryptedData element in the XmlDocument.
XmlElement encryptedElement = Doc.GetElementsByTagName("EncryptedData")[0] as XmlElement;
// If the EncryptedData element was not found, throw an exception.
if (encryptedElement == null)
{
throw new XmlException("The EncryptedData element was not found.");
}
// Create an EncryptedData object and populate it.
EncryptedData edElement = new EncryptedData();
edElement.LoadXml(encryptedElement);
// Create a new EncryptedXml object.
EncryptedXml exml = new EncryptedXml();
// Decrypt the element using the symmetric key.
byte[] rgbOutput = exml.DecryptData(edElement, Alg);
// Replace the encryptedData element with the plaintext XML element.
exml.ReplaceData(encryptedElement, rgbOutput);
}
public static void DecryptMultiple(XmlDocument Doc, SymmetricAlgorithm Alg)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (Alg == null)
throw new ArgumentNullException("Alg");
XmlNodeList encryptedElements = Doc.GetElementsByTagName("EncryptedData");
if (encryptedElements == null)
{
throw new XmlException("The EncryptedData elements were not found.");
}
List<XmlNode> nodes = new List<XmlNode>();
foreach (XmlNode n in encryptedElements)
{
if (n == null)
continue;
nodes.Add(n.Clone());
}
foreach (XmlElement ele in nodes)
{
XmlElement elementFetched = encryptedElements[0] as XmlElement;
EncryptedData edElement = new EncryptedData();
edElement.LoadXml(ele);
EncryptedXml exml = new EncryptedXml();
byte[] rgbOutput = exml.DecryptData(edElement, Alg);
exml.ReplaceData(elementFetched, rgbOutput);
}
}
}
}
#a1,#a2 {
display:none;
}
答案 6 :(得分：-1)
IT只使用元素id和hide（）函数
$(document).ready(function(){
$("#a1,#a2").hide();
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="a1">Hi</div>
<div>Some Random Text</div>
<div id="a2">Hello</div>
。