react-tree | navigate selection component | User Interface library
kandi X-RAY | react-tree Summary
kandi X-RAY | react-tree Summary
React Tree is a straight forward component that allows a user to display and manage a hierarchical structure of items in a clear and comfortable way.
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react-tree Examples and Code Snippets
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Trending Discussions on react-tree
QUESTION
I'm trying to use react-tree-graph with ReactJS to create a hierarchical tree. I'm trying to reproduce the example from GitHub before replacing the data with my own but nothing renders when I start my react app. I'm not getting any errors in the developer tools so I'm having a hard time finding the issue. Do I need to add the script to an HTML file instead of a standalone react app?
ReactJS Code:
...ANSWER
Answered 2020-Dec-03 at 23:40There is no return or render, Check the sandbox code:
QUESTION
I am a newbie to ReactJS, I wanted to make API calls within a function component. I wanted to fill TreeBeard component, with the list I take from an API call.
I can see the data updating on my console, but for some reason the data from TreeBeard doesnt.
Here's a bit of my code:
...ANSWER
Answered 2020-Oct-14 at 21:46The issue seems to be.
When the code reaches this section.
QUESTION
I am using @naisutech/react-tree plugin and I can get the sample to work in my code. The tree is displayed and operates correctly. I tried the theme
property and that works ok. I just cannot get the onSelect
callback to work. I am simply doing a console.log(props)
for now.
I have tried a different tree as a test and that tree (import TreeMenu from 'react-simple-tree-menu') the 'click' callback works ok.
I have tried using a method in the RecipePage class, I have tried an 'in-line' function. Everything seems to 'compile' but I never see a console message from the @naisutech tree, I do see console log messages from the react-simple-tree-menu.
I looked at the @naisutech code it and to me (I know nothing about React, just started) that the property is selectNode
or maybe selectedNode
not onSelect
as documentation states, but nothing I tried worked.
My code is simply:
...ANSWER
Answered 2020-Jun-26 at 20:29You're calling the function while passing it, you just need to pass its reference.
Change it to onSelect={onSelect}
, Your passed function will be called when the event is triggered.
Edit - I just verified, onSelect
is the right prop.
QUESTION
I have a JSON array of the following format (this data is pulled from mongodb to be displayed as a tree graph on a react-based front-end):
...ANSWER
Answered 2020-May-27 at 20:07You could first create a Map
that has as keys the name
property values, and as corresponding values the (unfinished) result objects. They start off with just the name
property.
Then you can iterate the children
information in the input, to wire the children
into the above mentioned result objects, which can be done efficiently using the name
as key in the Map
.
Whenever you wire a child object into a parent object, you know that child is not a top-level object in the final result. So starting with all nodes, you would trim that list (a Set
) all those nodes that occur in a children
array. This will leave you with only the top level nodes, which in its array form represents the desired output.
Implementation:
QUESTION
I run project "react-app-rewired start" development mode. The project compiles without errors.
Next I edit any file in /src/*
the project is recompiled, but does not respond to /src/view/*
NO compilation!
Although if I kill and restart the demon "react-app-rewired start" the project will compile completely. Why is this happening?
package.json
...ANSWER
Answered 2020-Mar-18 at 11:42The problem is fixed! once again run "npm install" funny
QUESTION
I want to re implement a tree component to improve its performance. I used the FixedSizeList from react-window. Its working relatively well. It can handle even 100,000 tree node.
My problem is, that I want to animate the little opening triangle of the tree node. The following css responsible for the animation:
...ANSWER
Answered 2019-Jun-18 at 00:37To prevent react-window
from re-rendering every item in the list, you need to:
- Memoize your row-rendering function
- Move that function outside the scope of the parent function
- Use the
itemData
prop to communicate between the parent component and per-row render function.
This is the strategy used in the react-window example sandbox here: https://codesandbox.io/s/github/bvaughn/react-window/tree/master/website/sandboxes/memoized-list-items
Here's an example using your code: https://codesandbox.io/s/a-quick-react-tree-component-based-on-react-window-8psp0
There may be a simpler way to do it using useMemo
but I couldn't figure that out.
If you examine the DOM nodes using Chrome dev tools, you'll see that DOM nodes are no longer being re-created for the entire tree when one node is expanded. This removes the flicker that you'd see before (in Chrome, but not in Firefox) when selecting a new node.
But there's also something else that's preventing your rotation animations from working properly. In the CodeSandbox example I linked above, I added some animations on the border
properties to show how animation of some CSS properties is working, but animation of the transform
CSS properties is not working. I suspect this problem has nothing to do with react-window
, so you'll probably want to debug it separately to figure out why your transforms aren't animating but other properties are animating OK.
QUESTION
I am trying to return an array of node objects, each of which has a unique label and array of children nodes, each identified by their unique label, for use in my frontend with a tree component (https://reactjsexample.com/a-simple-react-tree-menu-component/). A Category is a mongodb listing with a parent label, children array of children labels, their own unique label, and a number.
Running the createTreeJson function without a promise and printing treeData after a delay prints the correct result. I tried converting recursiveCat to return a promise and putting a .then after each recursiveCat call:
...ANSWER
Answered 2019-Jun-03 at 02:27There is 2 problem in your code :
resolve()
is like areturn
, you need to put something in. You should write :resolve(recursiveCat(node.nodes, category.label, treeData.length))
Your recursive function doesn't return anything. I think it should look more like that :
QUESTION
New to typescript, try to follow the demo https://www.npmjs.com/package/cp-react-tree-table to use this control in my project, but get below information.
Try to search and seems it's related to module definition which confuse.
Hope someone can show me light.
...ANSWER
Answered 2019-May-31 at 05:41Your module doesn't have a type definition. You should have install : @types/cp-react-tree-table but apparently it doesn't exist.
So you have to manualy create a file : "cp-react-tree-table.d.ts" containing the types.
You have examples of types definition here.
QUESTION
Why does @Storybook/react-native
require react-dom
?
My understanding of react-dom
is that it is used for the browser. But, since React Native doesn't use a browser this is just a peerDependency that will never be used.
When running a React Native app with remote debugging on, it will use Chrome as the running context and have a DOM available. Is this the reason for using it?
My package.json:
"dependencies": {
...
"react": "16.3.1",
"react-native": "0.55.4",
...
},
"devDependencies": {
...
"@storybook/react-native": "4.1.1",
...
}
I get these warnings when doing yarn install
:
warning "@storybook/react-native > @storybook/core@4.1.1" has unmet peer dependency "react-dom@>=16.3.0".
warning "@storybook/react-native > @storybook/ui@4.1.1" has unmet peer dependency "react-dom@*".
warning "@storybook/react-native > @storybook/ui > react-modal@3.8.1" has unmet peer dependency "react-dom@^0.14.0 || ^15.0.0 || ^16".
warning "@storybook/react-native > @storybook/ui > react-treebeard@3.1.0" has unmet peer dependency "react-dom@^15.5.4 || ^16.0.0".
warning "@storybook/react-native > @storybook/ui > react-treebeard > velocity-react@1.4.1" has unmet peer dependency "react-dom@^15.3.0 || ^16.0.0".
ANSWER
Answered 2019-Jan-09 at 09:02I got the following answer from Github Issue: https://github.com/storybooks/storybook/issues/5156
starting from v5 it won't need it. It is necessary so we could run web part of storybook. But the web part from v5 is going to be opt in
QUESTION
I'm developing a more complex example of passing props from a component to another. In this case, it's the content of an array(when I click on that content) to a
You can find the code here: https://codesandbox.io/s/509j5npkwx
(Please check the code in the link above)
TextBox
ANSWER
Answered 2018-Apr-27 at 00:01I'm not sure if I understood your question.
Here is my fork: https://codesandbox.io/s/50pv75q8ll
Basically, you pass the activeNode to < TextBox />. Look at line 126 of index.js.
And then, in text_box.js use componentWillReceiveProps() to set the TextBox state with the content prop. Line 18 of text_box.js.
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