For Example i have string Like
"//RemoveFromhere
<div>
<p>my name is blawal i want to remove this div </p>
</div>
//RemoveTohere"
I want to use //RemoveFromhere as starting point from where
and //RemoveTohere as ending point in between all character i want to remove
var sin = "BEFORE//RemoveFromhere"+
"<div>"+
"<p>my name is blawal i want to remove this div </p>"+
"</div>"+
"//RemoveTohereAFTER";
const string fromId = "//RemoveFromhere";
const string toId = "//RemoveTohere";
var from = sin.IndexOf(fromId) + fromId.Length;
var to = sin.IndexOf(toId);
if (from > -1 && to > from)
Console.WriteLine(sin.Remove(from , to - from));
//OR to exclude the from/to tags
from = sin.IndexOf(fromId);
to = sin.IndexOf(toId) + toId.Length;
Console.WriteLine(sin.Remove(from , to - from));
This gives results BEFORE//RemoveFromhere//RemoveTohereAFTER and BEFOREAFTER
See also a more general (better) option using regular expressions from Cetin Basoz added after this answer was accepted.
void Main()
{
string pattern = #"\n{0,1}//RemoveFromhere(.|\n)*?//RemoveTohere\n{0,1}";
var result = Regex.Replace(sample, pattern, "");
Console.WriteLine(result);
}
static string sample = #"Here
//RemoveFromhere
<div>
<p>my name is blawal i want to remove this div </p>
</div>
//RemoveTohere
Keep this.
//RemoveFromhere
<div>
<p>my name is blawal i want to remove this div </p>
</div>
//RemoveTohere
Keep this too.
";
What is the difference between innerHTML, innerText and value in JavaScript?
The examples below refer to the following HTML snippet:
<div id="test">
Warning: This element contains <code>code</code> and <strong>strong language</strong>.
</div>
The node will be referenced by the following JavaScript:
var x = document.getElementById('test');
element.innerHTML
Sets or gets the HTML syntax describing the element's descendants
x.innerHTML
// => "
// => Warning: This element contains <code>code</code> and <strong>strong language</strong>.
// => "
This is part of the W3C's DOM Parsing and Serialization Specification. Note it's a property of Element objects.
node.innerText
Sets or gets the text between the start and end tags of the object
x.innerText
// => "Warning: This element contains code and strong language."
innerText was introduced by Microsoft and was for a while unsupported by Firefox. In August of 2016, innerText was adopted by the WHATWG and was added to Firefox in v45.
innerText gives you a style-aware, representation of the text that tries to match what's rendered in by the browser this means:
innerText applies text-transform and white-space rules
innerText trims white space between lines and adds line breaks between items
innerText will not return text for invisible items
innerText will return textContent for elements that are never rendered like <style /> and `
Property of Node elements
node.textContent
Gets or sets the text content of a node and its descendants.
x.textContent
// => "
// => Warning: This element contains code and strong language.
// => "
While this is a W3C standard, it is not supported by IE < 9.
Is not aware of styling and will therefore return content hidden by CSS
Does not trigger a reflow (therefore more performant)
Property of Node elements
node.value
This one depends on the element that you've targeted. For the above example, x returns an HTMLDivElement object, which does not have a value property defined.
x.value // => null
Input tags (<input />), for example, do define a value property, which refers to the "current value in the control".
<input id="example-input" type="text" value="default" />
<script>
document.getElementById('example-input').value //=> "default"
// User changes input to "something"
document.getElementById('example-input').value //=> "something"
</script>
From the docs:
Note: for certain input types the returned value might not match the
value the user has entered. For example, if the user enters a
non-numeric value into an <input type="number">, the returned value
might be an empty string instead.
Sample Script
Here's an example which shows the output for the HTML presented above:
var properties = ['innerHTML', 'innerText', 'textContent', 'value'];
// Writes to textarea#output and console
function log(obj) {
console.log(obj);
var currValue = document.getElementById('output').value;
document.getElementById('output').value = (currValue ? currValue + '\n' : '') + obj;
}
// Logs property as [propName]value[/propertyName]
function logProperty(obj, property) {
var value = obj[property];
log('[' + property + ']' + value + '[/' + property + ']');
}
// Main
log('=============== ' + properties.join(' ') + ' ===============');
for (var i = 0; i < properties.length; i++) {
logProperty(document.getElementById('test'), properties[i]);
}
<div id="test">
Warning: This element contains <code>code</code> and <strong>strong language</strong>.
</div>
<textarea id="output" rows="12" cols="80" style="font-family: monospace;"></textarea>
Unlike innerText, though, innerHTML lets you work with HTML rich text and doesn't automatically encode and decode text. In other words, innerText retrieves and sets the content of the tag as plain text, whereas innerHTML retrieves and sets the content in HTML format.
InnerText property html-encodes the content, turning <p> to <p>, etc. If you want to insert HTML tags you need to use InnerHTML.
In simple words:
innerText will show the value as is and ignores any HTML formatting which may
be included.
innerHTML will show the value and apply any HTML formatting.
Both innerText and innerHTML return internal part of an HTML element.
The only difference between innerText and innerHTML is that: innerText return HTML element (entire code) as a string and display HTML element on the screen (as HTML code), while innerHTML return only text content of the HTML element.
Look at the example below to understand better. Run the code below.
const ourstring = 'My name is <b class="name">Satish chandra Gupta</b>.';
document.getElementById('innertext').innerText = ourstring;
document.getElementById('innerhtml').innerHTML = ourstring;
.name {
color:red;
}
<p><b>Inner text below. It inject string as it is into the element.</b></p>
<p id="innertext"></p>
<br>
<p><b>Inner html below. It renders the string into the element and treat as part of html document.</b></p>
<p id="innerhtml"></p>
var element = document.getElementById("main");
var values = element.childNodes[1].innerText;
alert('the value is:' + values);
To further refine it and retrieve the value Alec for example, use another .childNodes[1]
var element = document.getElementById("main");
var values = element.childNodes[1].childNodes[1].innerText;
alert('the value is:' + values);
In terms of MutationObservers, setting innerHTML generates a childList mutation due to the browsers removing the node and then adding a new node with the value of innerHTML.
If you set innerText, a characterData mutation is generated.
innerText property sets or returns the text content as plain text of the specified node, and all its descendants, whereas the innerHTML property gets and sets the plain text or HTML contents in the elements. Unlike innerText, innerHTML lets you work with HTML rich text and doesn’t automatically encode and decode text.
InnerText will only return the text value of the page with each element on a newline in plain text, while innerHTML will return the HTML content of everything inside the body tag, and childNodes will return a list of nodes, as the name suggests.
The innerText property returns the actual text value of an html element while the innerHTML returns the HTML content. Example below:
var element = document.getElementById('hello');
element.innerText = '<strong> hello world </strong>';
console.log('The innerText property will not parse the html tags as html tags but as normal text:\n' + element.innerText);
console.log('The innerHTML element property will encode the html tags found inside the text of the element:\n' + element.innerHTML);
element.innerHTML = '<strong> hello world </strong>';
console.log('The <strong> tag we put above has been parsed using the innerHTML property so the .innerText will not show them \n ' + element.innerText);
console.log(element.innerHTML);
<p id="hello"> Hello world
</p>
To add to the list, innerText will keep your text-transform, innerHTML wont.
#rule:
innerHTML
write: whatever String you write to the ele.innerHTML, ele (the code of the element in the html file) will be exactly same as it is written in the String.
read : whatever you read from the ele.innerHTML to a String, the String will be exactly same as it is in ele (the html file).
=> .innerHTML will not make any modification for your read/write
innerText
write: when you write a String to the ele.innerText, any html reserved special character in the String will be encoded into html format first, then stored into the ele.
eg: <p> in your String will become <p> in the ele
read : when you read from the ele.innerText to a String,
any html reserved special character in the ele will be decoded back into a readable text format,
eg: <p> in the ele will become back into <p> in your String
any (valid) html tag in the ele will be removed -- so it becomes "plain text"
eg: if <em>you</em> can in the ele will become if you can in your String
about invalid html tag
if there is an invalid html tag originally in the ele (the html code), and you read from.innerText, how does the tag gets removed?
-- this ("if there is an invalid html tag originally") should not (is not possible to) happen
but its possible that you write an invalid html tag by .innerHTML (in raw) into ele -- then, this may be auto fixed by the browser.
dont take (-interpret) this as step [1.] [2.] with an order
-- no, take it as step [1.] [2.] are executed at the same time
-- I mean, if the decoded characters in [1.] will form a new tag after the conversion, [2.] does not remove it
(-- cuz [2.] considers what characters are in the ele during the conversion, not the characters they become into after the conversion)
then stored into the String.
jsfiddle: with explanation
(^ this contains much more explanations in comments of the js file, + output in console.log
below is a simplified view, with some output.
(try out the code yourself, also there is no guarantee that my explanations are 100% correct.))
<p id="mainContent">This is a <strong>sample</strong> sentennce for Reading.</p>
<p id="htmlWrite"></p>
<p id="textWrite"></p>
// > #basic (simple)
// read
var ele_mainContent = document.getElementById('mainContent');
alert(ele_mainContent.innerHTML); // This is a <strong>sample</strong> sentennce for Reading. // >" + => `.innerHTML` will **not make any modification** for your read/write
alert(ele_mainContent.innerText); // This is a sample sentennce for Reading. // >" 2. any (valid) `html tag` in the `ele` will be **removed** -- so it becomes "plain text"
// write
var str_WriteOutput = "Write <strong>this</strong> sentence to the output.";
var ele_htmlWrite = document.getElementById('htmlWrite');
var ele_textWrite = document.getElementById('textWrite');
ele_htmlWrite.innerHTML = str_WriteOutput;
ele_textWrite.innerText = str_WriteOutput;
alert(ele_htmlWrite.innerHTML); // Write <strong>this</strong> sentence to the output. // >" + => `.innerHTML` will **not make any modification** for your read/write
alert(ele_htmlWrite.innerText); // Write this sentence to the output. // >" 2. any (valid) `html tag` in the `ele` will be **removed** -- so it becomes "plain text"
alert(ele_textWrite.innerHTML); // Write <strong>this</strong> sentence to the output. // >" any `html reserved special character` in the String will be **encoded** into html format first
alert(ele_textWrite.innerText); // Write <strong>this</strong> sentence to the output. // >" 1. any `html reserved special character` in the `ele` will be **decoded** back into a readable text format,
// > #basic (more)
// write - with html encoded char
var str_WriteOutput_encodedChar = "What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?";
var ele_htmlWrite_encodedChar = document.getElementById('htmlWrite_encodedChar');
var ele_textWrite_encodedChar = document.getElementById('textWrite_encodedChar');
ele_htmlWrite_encodedChar.innerHTML = str_WriteOutput_encodedChar;
ele_textWrite_encodedChar.innerText = str_WriteOutput_encodedChar;
alert(ele_htmlWrite_encodedChar.innerHTML); // What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?
alert(ele_htmlWrite_encodedChar.innerText); // What if you have <strong>encoded</strong> char in the sentence?
alert(ele_textWrite_encodedChar.innerHTML); // What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?
alert(ele_textWrite_encodedChar.innerText); // What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?
// > #note-advance: read then write
var ele__htmlRead_Then_htmlWrite = document.getElementById('htmlRead_Then_htmlWrite');
var ele__htmlRead_Then_textWrite = document.getElementById('htmlRead_Then_textWrite');
var ele__textRead_Then_htmlWrite = document.getElementById('textRead_Then_htmlWrite');
var ele__textRead_Then_textWrite = document.getElementById('textRead_Then_textWrite');
ele__htmlRead_Then_htmlWrite.innerHTML = ele_mainContent.innerHTML;
ele__htmlRead_Then_textWrite.innerText = ele_mainContent.innerHTML;
ele__textRead_Then_htmlWrite.innerHTML = ele_mainContent.innerText;
ele__textRead_Then_textWrite.innerText = ele_mainContent.innerText;
alert(ele__htmlRead_Then_htmlWrite.innerHTML); // This is a <strong>sample</strong> sentennce for Reading.
alert(ele__htmlRead_Then_htmlWrite.innerText); // This is a sample sentennce for Reading.
alert(ele__htmlRead_Then_textWrite.innerHTML); // This is a <strong>sample</strong> sentennce for Reading.
alert(ele__htmlRead_Then_textWrite.innerText); // This is a <strong>sample</strong> sentennce for Reading.
alert(ele__textRead_Then_htmlWrite.innerHTML); // This is a sample sentennce for Reading.
alert(ele__textRead_Then_htmlWrite.innerText); // This is a sample sentennce for Reading.
alert(ele__textRead_Then_textWrite.innerHTML); // This is a sample sentennce for Reading.
alert(ele__textRead_Then_textWrite.innerText); // This is a sample sentennce for Reading.
// the parsed html after js is executed
/*
<html><head>
<meta charset="utf-8">
<title>Test</title>
</head>
<body>
<p id="mainContent">This is a <strong>sample</strong> sentennce for Reading.</p>
<p id="htmlWrite">Write <strong>this</strong> sentence to the output.</p>
<p id="textWrite">Write <strong>this</strong> sentence to the output.</p>
<!-- P2 -->
<p id="htmlWrite_encodedChar">What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?</p>
<p id="textWrite_encodedChar">What if you have <strong>encoded</strong> char in <strong>the</strong> sentence?</p>
<!-- P3 #note: -->
<p id="htmlRead_Then_htmlWrite">This is a <strong>sample</strong> sentennce for Reading.</p>
<p id="htmlRead_Then_textWrite">This is a <strong>sample</strong> sentennce for Reading.</p>
<p id="textRead_Then_htmlWrite">This is a sample sentennce for Reading.</p>
<p id="textRead_Then_textWrite">This is a sample sentennce for Reading.</p>
</body></html>
*/
innerhtml will apply html codes
innertext will put content as text so if you have html tags it will show as text only
1)innerHtml
sets all the html content inside the tag
returns all the html content inside the tag
includes styling + whitespaces
2)innerText
sets all the content inside the tag (with tag wise line breaks)
returns all html content inside the tag (with tag wise line breaks)
ignores tags (shows only text)
ignores styling + whitespaces
if we have style:"visibility:hidden;" inside tag
|_ innerText includes the styling -> hides content
3)textContent
sets all the content inside the tag (no tag wise line breaks)
returns all content inside the tag (no tag wise line breaks)
includes whitespaces
if we have style:"visibility:hidden;" inside tag
|_ textContent ignores the styling -> shows content
textContent has better performance because its value is not parsed as HTML.
I took the HTML code from an website and I want to get just a section from it. I have something like:
<html content>
<what i need>
<other html content>
I know that the content which I need starts with:
<div class="widget-title"><h3><span>Ultimele stiri:</span></h3></div>
and finish with:
</div></aside>
I also know that the content between these two sections is changing. How can I make a substring containing the content I need?
Try this:
public string GetSubstringByString(string a, string b, string c)
{
return c.Substring((c.IndexOf(a) + a.Length), (c.IndexOf(b) - c.IndexOf(a) - a.Length));
// Usage: GetSubstringByString("(", ")", "User name (sales)")
}
Here is an example:
string Substring = GetSubstringByString(<html content>,<other html content>,<what i need>)
That's how if I have some content that I want to replace from a tag to html content how do I add html content to the site I've written it takes her.
fx:
<p> hello world </p>
<p> hello world </p>
<p> hello world </p>
<p>{{alert}}</p>
Where I've written alert there, then it will get a video that is in my block's table.
{{alert}} ---> <div class="alert alert-success">
<strong>Success!</strong> Indicates a successful or positive action.
</div>
var listBlocks = _dbContext.Blocks.ToList();//Get {{banner}} here
var text = _dbContext.ContentInfo.FirstOrDefault(i => i.Id == 1).ContentText;//text content
for (int i = 0; i < listBlocks.Count; i++)
{
if (listBlocks[i].Tag.Equals(text))
{
text += text.Replace(listBlocks[i].Tag, listBlocks[i].Value);
}
//How can I do this?
}
It must be alike. where I have written her, it just replaces the point I have written
No matter where tag is, it should replace it as it is in the block table.
I appreciate English isn't your first language.
From what I understand, I think you just need to change
if (listBlocks[i].Tag.Equals(text))
{
text += text.Replace(listBlocks[i].Tag, listBlocks[i].Value);
}
to
text = text.Replace(listBlocks[i].Tag, listBlocks[i].Value);
or if you like
if (listBlocks[i].Tag.Contains(text))
{
text += text.Replace(listBlocks[i].Tag, listBlocks[i].Value);
}
This is because you don't need to append the replacement to the end of text, and also it's unlikely that text==listBlocks[i].Tag because text just contains the tag.
I only see the space tags "\r\n "\r\n" for InnerHTML & InnerText properties and not the actual content. Where am i going wrong
RENDERED HTML:
<div id="urllist" runat="server">
http://test1t.com
<br></br>
http://test2.com
<br></br>
</div>
C#:
HtmlContainerControl list = (HtmlContainerControl)urllist;
string string1 = list.InnerHtml;
string string2 = list.InnerText;
//this didnt work either
string string1 = urllist.InnerHtml;
string string2 = urllist.InnerText;
If i remember correctly you have to use Controls[0] to find the literal control that contains the text:
var div = (HtmlGenericControl) urllist;
var lit = (LiteralControl) div.Controls[0];
string text = lit.Text;
Update: tested, it works. This is text:
http://test1t.com
<br></br>
http://test2.com
<br></br>
However, now i have tested it with your approach and it works also.
I would have added a comment, but I cannot add images in comments. See below, I've tested your code and it works:
Are you sure you don't check your result in a HTML page or that you are not altering your result in any way before you check it?