select3 | 包含tree的select下拉框

I am using react-select3.2.0. When I open my select box and select a option. And then I open my select dropdown again then selected value comes into view. But the problem comes when value of the dropdown comes from the props and not manually selected by opening dropdown. Then when I open the drop down it does not scroll into view the selected value. I have also tried menuScrollIntoView={true} props of react-select but my problem persists. My Select component is as follow;

I've got three dropdowns that are linked together dynamically so that they update automatically depending on respective selections - i.e. these selected options can change without being clicked on. I'd like to create a variable that would combine the content of the three selected dropdown options into a string.

The expected output should throw a string like "year/month/week" (e.g, "2018/January/week1").

Here's the JSFiddle link: https://jsfiddle.net/ssoj_tellig/zo85r30x/18/

I have a form that should redirect the users from one route to another. I want this redirection to be based on a radio button selection.

I have a jquery code like this

When adding conditional requirements for the v-select in the v-form to be validated, it does not work as expected. I used

I have a number of select inputs, all with the two options, 'yes' and 'no'.

Every time the 'yes' option is selected, I want to add 1 to a counter. I can do this with the code below.

However, if the user changes the value to 'no' and then back to 'yes' then the counter will be on 2 instead of 1, which isn't wanted.

How do i prevent this so that if they click 'yes' it adds 1, and they then change to 'no' it removes 1. But if they click no first, it remains the same?

Hi all : quick question : I have three Select elements in my page, which I need to fill with the same options (initially). The data comes from a AJAX request.

Can somebody tell me why only the first Select has the options appended (allthough it is last in the .each()), whereas the others do not? It is not a major problem, I can solve it in other ways, but I was just curious if someone could explain this to me.

I am working with a data set with many more rows, here is a snippet of it in the code. I want the app to show the rows correctly, so BMW PETROL 1 will show: fuel=petrol, mpg =30, colour = red and BMW PETROL 2 will show petrol, 40, blue. etc

But when switching between BMW petrol 1 and 2, it does not update correctly. It seems that "Petrol" existing in both rows is causing the problem.

I thought about doing a if/else statement but I think this would become too complicated since I have many rows with multiple petrol/diesel inputs. I also do not want a button that resets the whole thing, I'd like it to change as the user chooses the vehicle.

(I couldn't find an example with the same problem as this but please send me anything that I may have missed!)

Code:

On my react app I have 3 droplist the first drop has the primary values ​​(ex: a, b) the next drop will filter the values ​​in the array using the value selected in the first drop I'm using the ui and Autocomplete material for the dropboxes when I select the value in the first drop the component returns the value in the event of the click to the parent, and then I call the second drop with these values