Set option list height of a dropdown list - html

Right now i have about 100 options in my list (HTML Dropdown list) and as it shows around 10 options and the rest on scroll.
What i need is to reduce the height of options list ie. up on clicking the dropdown, show 3 options and rest on scroll.
I will really appreciate you if you could able to answer this or direct me to a possible solution.
Thanks in advance,
Tismon Varghese

You can use size="5" attribute.
It will display 5 options for example.

Related

How to make an on click collapsible list using html and CSS

when i click on the arrow or the name the list drops down
this is how the expanded list looks like
how do I get this type of collapsible list using html and CSS
I tried it with details and summary tags but it puts the list further away from the other normal lists is there any other way to achieve it.
The question is already answered on stackoverflow and on the internet. Make sure to do some research before asking.
Here are some links: 1. Link 1
2. Link 2
You can take some ideas from these two and make your own custom dropdown.

How can I make equal padding in HTML dropdown options

so I am currently trying to make a dropdown with options that go
FullName | IDNumber
I was wondering if there is a way to add dynamic padding so that the "|" is lined up on every option.
Dropdown Options Example
Here is what I would want it to look like in a way.
Dropdown Design Goal
Well if the names and IDs doesn't come with any interaction with DB try using extra space ( ) after the names.
Display it in 1x2 box instead of 1x1.

Showing different text on dropdown selection vs dropdown options

I have a requirement where my drop-down values in my select are an expanded div which has 3 lines. For example my options Could be something like below
Honda Accord
19'
Blue
--------------
Honda Civic
17'
Red
This is what my dropdown would look like when expanded. So instead of regular one line option I have a div with more detailed options. The challenge I am facing is when making my selection (I can correctly display the grid as above) my dropdown selection value shows as the context of the whole div. So for example my dropdown after selection would look like this.
[Honda Civic17'Red]
I am using Angular Material for my dropdown. Is anyone aware of a way to set the selection to another value than the option text? For example I would like my dropdown when selected to display [Honda Civic] instead of [Honda Covic17'Red].
Any help would be appreciated.
Thank you.
You can customize the display of the selected item using MatSelectTrigger. An example is provided here: https://material.angular.io/components/select/overview#customizing-the-trigger-label.

Have my asp:DropDownList slide down when selected and NOT sliding both up and down

been looking for a similar issue for a moment but couldn't find anything about that anywhere.
Working on an ASP.NET project and I need my asp:DropDownList to have it's elements sliding DOWN when selected.
When the selected item is the first one, everything is OK since I'm at the top of my element list, but if I select the dropdownlist when the selected item is like the XXth, the list will be displayed with a slide going up and down at the same time (that makes my currently selected item in the middle of the displayed list).
I want my list to be sliding down always, whatever my selected element position is (the same display as if the selected element was always the 1st).
Hope my question is clear.
If you need any screen, I'll send you some but it's probably not necessary.
Thanks by advance for your answers !

Select and Option tag i.e dropdown in html show complete list [duplicate]

This question already has answers here:
Height of an HTML select box (dropdown)
(9 answers)
Closed 7 years ago.
I have 25-30 options in my <select> </select>
tag, when i click on the select from drop down list. I get the list of first 20 options only and after that i have to scroll down the the list to select onwards i.e. for 21 to further.
But my requirement is that when click on dropdown to select, the complete list should be shown that is all 25-30 options should be shown, no scroll bar.
Pleae help me.. I had done lot of googling on it, but not got any solution.
try that snippet
$('select').on('click', function(){
$('select').attr('size', $('select option').size());
})
demo
Take a look at this question:
Height of an HTML select box (dropdown)
As accepted answer states - there is no way to do that. Suppose you will need to use custom JS drop down to achieve that.
The attribute size ot the select element, specifies the number of visible options in a drop-down list.
If the value of the size attribute is greater than 1, but lower than the total number of options in the list, the browser will add a scroll bar to indicate that there are more options to view.
If you use JQuery you can find the number of options in your select list like this:
var count = $("#mySelect :selected").length;
and set the size attribute to this number, like this:
$("select").attr('size',count);