I am trying to add a <span> to my view when my session variable is not null.
The value of Session["error"] has the right value (I checked), but there is no <span> coming in my view when it is filled while the code DOES come into the IF statement.
#if (Session["error"] != null) { Html.Raw("<span class=\"alert\"> #Session[\"error\"].ToString() <span>"); }
Plz tell me what i need to change. I am a student and new to coding.
You need to add # to write the output of the function to the response stream. In short; #Html.Raw().
However, this is not how Razor code should be used. Instead you can embed HTML directly within your if, like so:
#if (Session["error"] != null)
{
<span class="alert">#Session["error"]</span>
}
Related
I would like to write a snippet in VS Code that writes a "switch" expression (in Javascript), but one where I can define the number of cases.
Currently there is a snippet that produces the outline of a switch expression with 1 case, and allows you to tab into the condition, case name, and the code contained within.
I want to be able to type "switch5" ("5" being any number) and a switch with 5 cases to be created, where I can tab through the relevant code within.
I know the snippets are written in a JSON file, can I include such conditional logic in this, or is it not possible?
Thanks!
The short answer is that you cannot do that kind of thing in a standard vscode snippet because it cannot dynamically evaluate any input outside of its designated variables with some limited workarounds like I'll mention next.
You might - I and others have written answers on SO about his - type your various case values first and then trigger a snippet tat would transform them into a switch statement. It is sort of doing it backwords but it might be possible.
There are extensions, however, that do allow you to evaluate javascript right in a snippet or setting and output the result. macro-commander is one such extension. I'll show another simpler extension doing what you want: HyperSnips.
In your javascript.hsnips:
snippet `switch(\d)` "add number of cases to a switch statement" A
``
let numCases = Number(m[1]) // 'm' is an array of regex capture groups
let caseString = ''
if (numCases) { // if not 'switch0'
let tabStopNum = 1
caseString = `switch (\${${tabStopNum++}:key}) {\n`
for (let index = 0; index < m[1]; index++) {
caseString += `\tcase \${${tabStopNum++}:value}:\n\t\t\$${tabStopNum++}\n`
caseString += '\t\tbreak;\n\n'
}
caseString += '\tdefault:\n'
caseString += '\t\tbreak;\n}\n'
}
rv = `${caseString}` // return value
``
endsnippet
The trickiest part was getting the unknown number of tabstops to work correctly. This is how I did it:
\${${tabStopNum++}:key}
which will resolve to ${n:defaultValue} where n gets incremented every time a tabstop is inserted. And :defaultValue is an optional default value to that tabstop. If you don't need a defaultValue just use \$${tabStopNum++} there.
See https://stackoverflow.com/a/62562886/836330 for more info on how to set up HyperSnips.
I have a list held by Session's variable. Suppose: Session["SOF"].
Within this list, there are several items. Suppose each item is an integer. Let's say I want to find the item which has the value 9 and then display the item's value in HTML (this thing is clearly stupid but it is just example).
Here is what I tried in my HTML code in order to display the number:
#(List<int>(Session["SOF"]).FirstOrDefault(x => x.value == 9).ToString());
obviously it didn't work. So how can I do it?
I would use foreach in this case
Try this:
#foreach(var item in Session["SOF"])
{
if(item == 9)
{
<span>#item.ToString()</span>
}
}
Maybe casting to a List<int> will be needed for Session["SOF"], but give it a try.
I am trying to automate a desktop application in sikuli. What i am doing copying data from from existing user and creating new user using some of that data. In form there are two check boxes. If that check boxes is ticked for existing user, then while creating new user i need to check the text box. for that am taking checked text box image and giving in if condition. If checked text box image is there in that page i will carry value 1 to a variable else value will be 0. according to that value am performing check uncheck function in new user creation page. But the issue what i am facing is, am not able to check if the image exist in that page or not in sikuli. Please anybody help me. my code is giving below
int bomanager=0;
int boswitchboard=0;
System.out.println("boswitchboard value before assign it to 1" + bomanager);
if (screen.exists("images/backofficeswitchboardwithtick.png") != null)
{
boswitchboard=1;
System.out.println("boswitchboard value after assign"+boswitchboard);
}
System.out.println("bomanager value before assign it to 1" + bomanager);
if(screen.exists("images/backofficemanagerwithtick.png") != null)
{
bomanager=1;
System.out.println("bomanager value after assign it to 1"+bomanager);
}
then using this value need to perform below function.
System.out.println("Before condition" + bomanager);
if (bomanager ==0){
screen.click("images/backofficemanagerwithtick.png");
}
screen.setAutoWaitTimeout(10);
System.out.println("Before condition" + boswitchboard);
if(boswitchboard==0){
System.out.println("Inside To tick Condition" + boswitchboard);
System.out.println("Ticking the SwitchBorad when itsnot already ticked");
screen.click("images/backofficeswitchboardwithtick.png");
}
I'm asssuming you're looking to use "if exists" method here
if exists(img, timeout):
click(img)
else:
....
with the method exists() I usually use:
if(exists("yourUrlImage")!=null):
(do something when exists)
else:
(do another thing when not exists)
Because that will return a "match" object.
Hope this helps
I'm pretty new to MVC and I'm having a hard understanding how to get the values (basically the IDs) to checkboxes that I'm generating. Here are my checkboxes:
<div id='myCheckboxDiv'>
<input type="checkbox" onclick="checkAll(this)">Check All
#foreach (var form in #Model.DetailObject.DoaFormGroupDocuments)
{
<br>
var checkBoxId = "chk" + form.DocumentId;
#Html.CheckBox(checkBoxId, new { value = form.DocumentId, #checked = true });
#form.DocumentName;
}
</div>
Essentially what I want to do is get the ID to which ever checkbox is checked and save it in to a list after I click a save button at the bottom of the page.
I have run across something like this to handle everything but I'm not quite sure how to use it really...
var values = $('#myCheckboxDiv').find('input:checkbox:checked').map(function () {
// get the name ..
var nameOfSelectedItem = this.attr('name');
// skip the ‘chk’ part and give me the rest
return nameOfSelectedItem.substr(3);
}).get();
The only thing you need to think about is the value of the name attribute your checkbox(es) will have. The way you're handling it right now, your post body is going to have a fairly randomized collection of chkN-named parameters, where N is some number. The modelbinder will need something similarly named as a parameter to your action method in order to bind the posted values to something useful. That's a tall order for something that will be some what variable (the DocumentId values).
The best option would be to set up your checkboxes, instead, as a collection, which means giving them names chk[0], chk[1], etc. Then in your action you can accept a parameter like List<string> chk, and that will contain a list of all the values that were posted.
Cross from PerlMonks, see bottom.
UPDATE: Perhaps the best way to do this is through HTML or JavaScript(I know nothing of these)?
Objective
After the whole code is run and an output is given, I'd like to provide a hyperlink to re-run the code, with the same search word, but different radio buttons pressed.
Here is a portion of my CGI script, related to the user input:
my $search_key = param('query');
my $c_verb = param('verb_only');
my $c_enabling = param('enabling');
my $c_subject = param('subject');
my $c_object = param('object');
my $c_prep = param('prep');
my $c_adj = param('adjective');
my $c_modnoun = param('modnoun');
my $category_id;
if ($c_verb eq 'on')
{
if ($c_enabling eq 'on')
{$category_id = 'xcomp';}
elsif ($c_subject eq 'on')
{$category_id = 'subj';}
elsif ($c_object eq 'on')
{$category_id = 'obj';}
elsif ($c_prep eq 'on')
{$category_id = 'prep';}
I don't have access to the HTML, but from viewing the source code, all the $c_... have the form:
<input type="checkbox" name="verb_only" onClick="ch...
The "unseen" in the title is referring to no appended name/tag value pairs, so I don't know what to change, Where can I find this information?
I was thinking of changing $c_enabling to $c_subject and another link to a case where it was as if $c_prep was chosen from the user. Is there a way to substitute the name-value pairs of that single param? (So user inputs options, runs, instead of going back to input different ones, just click hyperlink, because some options stay the same)
The URL of the form is like: http://concept.whatever.com/test.html and the output is at the URL: http://concept.whatever.com/cgi-bin/search2011.cgi
My attempt
See posted answer
UPDATE: I've tried `url(-query) but nothing was appended to the end...
Thanks for any advice. Let me know if this is not clear.
Original: http://www.perlmonks.org/?node_id=910616.... Particularly applying this advice: http://www.perlmonks.org/?node_id=910630
If the method of the HTML is changed to GET instead of POST:
<form name="search_option" action="http://localhost/cgi-bin/mytestsearch2011.cgi" method="get">
Then the tags can be viewed (I had to copy the source code and do this on my localhost to check them)
I was able to find out what tags and values to put, b/c get method. So here is the working code:
if ($category_id eq "xcomp") {
my $subjurl = "http://localhost/cgi-bin/mytestsearch2011.cgi?query=$search_key&verb_only=on&subject=on&exclude0=&exclude1=&exclude2=&exclude3=";
print qq(Subject\n)." ";
my $objurl = "http://localhost/cgi-bin/mytestsearch2011.cgi?query=$search_key&verb_only=on&object=on&exclude0=&exclude1=&exclude2=&exclude3=";
print qq(Object\n)." ";
my $prepurl = "http://localhost/cgi-bin/mytestsearch2011.cgi?query=$search_key&verb_only=on&prep=on&exclude0=&exclude1=&exclude2=&exclude3=";
print qq(Preposition\n)."<br><br>";
}
elsif ($category_id eq "subj") { ##List urls other than what is currently output:
my $enablingurl = "http://localhost/cgi-bin/mytestsearch2011.cgi?query=$search_key&verb_only=on&enabling=on&exclude0=&exclude1=&exclude2=&exclude3=";
print qq(Enabling Function\n)." ";
...
I don't understand all the exclude tags, but that's okay...
UPDATE: This works with POST as well, I just needed to know all the tags that came after the URL. Thanks!