I am coding a store site in which I put two buttons to add and subtract items in the shopping cart. When the number of goods is several, the buttons work correctly, but if the number of goods is one, the buttons do not work, and by executing a new operation, the previous command of the buttons works. I think I should use the useEffect Here you can see a photo of my codehook, but I don't know how. Please help me. I have also uploaded a photo of my code.
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I need a bit of direction. I'm working on an application with React, Typescript, and Material UI. I've created a simple modal. The first page contains an MUI DataGrid with checkSelection enabled. The User can select as many options as appear on the table.
Now, for each selection, the User will then have a new form step to complete. So, if the User selects 5 items from the table, they will then see 5 corresponding steps. The form steps are tied to the selection. So, if the first selection is a menu item, for example, then the next step in the form will be about that menu item, with fields to add to that item.
I've been searching for a similar solution and haven't found one. I'm hoping that someone can point me in the right direction or has some sources they can recommend.
Much appreciated.
I have a list of time pickers in my application to let the user chose the opening times for his store, so he can chose from_time,to_time and the day as shown in the picture.
the problem is i want to control this list so i can add a new time, delete, modify
I am using Antd V3.
I'm not sure if I got your question, but here is what I have got
https://codesandbox.io/s/nice-curran-kkx10
by the way, that snippet could help you to understand the use case of keys with list in React.
I have an inherited React app that i need to fix but after a few days, im stuck and need help.
I have a filtering panel on the left side which contains a 5 categories and items within their categories below it, each item has a checkbox next to it and when you click it, it updates the results on the right side, this works fine.
However i have a task to update the numbers next to the links in the filter panel, based on what was clicked and would like to know if there is a way to create the filters links first and then only update the number next to the link upon click.
All the code resides in the render method, any help would be great.
I am building an app that has several tabs, among them the Browse tab and the Cart tab.
When clicking on the "Add to cart" button in the item details activity, I get a notice saying "Product must have a combination chosen". How can I have the app show the combination choices so these can be selected?
The reason you're getting this error message is that the product has variations (for example a t-shirt coming in several colors/sizes). You can't add to cart since you did not choose a specific combination of these variations.
You need to add a variation chooser to your item details. You can try the ItemVariationsView module.
This view will display all the possible variations to the user. By default, it uses image thumbnails, so you'll have to prepare an image for every option. If you don't want to mess around with all these images, you can add a DefaultRenderTypeOverride and make it a Select. This will make the variations appear as a combo-box.
I am developing a windows phone application. It's some kind of reminder which can have custom reminder categories. I am using the mvvm pattern.
I have two pages. One is for entering new data (category name and description) and editing and the other is for selecting a specific category wchich can then be edited/deleted.
The second page has a listbox which displays all categories that exist... after clicking on one of them the first page where the values (category name and description) are already entered in the textboxes. I can now edit and save them. All this works fine except for one thing. After saving and hitting the back button (so that i can get back to the list) i realize that the page isnt refreshing so that the old value is still displayed. How can i make the page "refresh" after poping up again...
Your description of the problem is a bit vague without any code or XAML. There are few things you need to check -
Check if the items in the page are databound properly
Check if you have implemented properties of the ViewModel(s) correctly. RaisePropertyChanged in the property's setter must be implemented.
Code/XAML snippets will help others identify your problem.