quickest-silver•4mo ago

how to share selected value globally throughout the app?

import { useSelect, type RefineThemedLayoutV2HeaderProps, } from "@refinedev/antd"; import { useGetIdentity } from "@refinedev/core"; import { Layout as AntdLayout, Avatar, Select, Space, Switch, Typography, theme, } from "antd"; import React, { useContext } from "react"; import { ColorModeContext } from "../../contexts/color-mode"; const { Text } = Typography; const { useToken } = theme; type IUser = { id: number; name: string; avatar: string; }; export const Header: React.FC<RefineThemedLayoutV2HeaderProps> = ({ sticky, }) => { const { token } = useToken(); const { data: user } = useGetIdentity<IUser>(); const { mode, setMode } = useContext(ColorModeContext); const { selectProps, queryResult: queryResultProjects } = useSelect({ resource: "projects", optionLabel: "project_name", optionValue: "id", }); const headerStyles: React.CSSProperties = { backgroundColor: token.colorBgElevated, display: "flex", justifyContent: "flex-end", alignItems: "center", padding: "0px 24px", height: "64px", }; if (sticky) { headerStyles.position = "sticky"; headerStyles.top = 0; headerStyles.zIndex = 1; } return ( <AntdLayout.Header style={headerStyles}> <Select placeholder="Select project" style={{ width: 300 }} {...selectProps} /> {/* <Space> <Switch checkedChildren="🌛" unCheckedChildren="🔆" onChange={() => setMode(mode === "light" ? "dark" : "light")} defaultChecked={mode === "dark"} /> <Space style={{ marginLeft: "8px" }} size="middle"> {user?.name && <Text strong>{user.name}</Text>} {user?.avatar && <Avatar src={user?.avatar} alt={user?.name} />} </Space> </Space> */} </AntdLayout.Header> ); }; how to share selected value globally throughout the app?

5 Replies

kapa.ai•4mo ago

Hi @daw. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To share a selected value globally throughout your app in React, you can use React's Context API. The Context API allows you to share state and pass it through the component tree without having to pass props down manually at every level. Here's a basic example of how you can create a context:

import React from 'react';

// Create a Context
const SelectedValueContext = React.createContext();

// Create a Context Provider Component
export const SelectedValueProvider = ({ children }) => {
  const [selectedValue, setSelectedValue] = React.useState();

  return (
    <SelectedValueContext.Provider value={{ selectedValue, setSelectedValue }}>
      {children}
    </SelectedValueContext.Provider>
  );
};

// Create a custom hook to use the context
export const useSelectedValue = () => {
  const context = React.useContext(SelectedValueContext);
  if (context === undefined) {
    throw new Error('useSelectedValue must be used within a SelectedValueProvider');
  }
  return context;
};

import React from 'react';

// Create a Context
const SelectedValueContext = React.createContext();

// Create a Context Provider Component
export const SelectedValueProvider = ({ children }) => {
  const [selectedValue, setSelectedValue] = React.useState();

  return (
    <SelectedValueContext.Provider value={{ selectedValue, setSelectedValue }}>
      {children}
    </SelectedValueContext.Provider>
  );
};

// Create a custom hook to use the context
export const useSelectedValue = () => {
  const context = React.useContext(SelectedValueContext);
  if (context === undefined) {
    throw new Error('useSelectedValue must be used within a SelectedValueProvider');
  }
  return context;
};

In your components, you can use the useSelectedValue hook to access and update the selected value:

import { useSelectedValue } from './selectedValueContext';

const SomeComponent = () => {
  const { selectedValue, setSelectedValue } = useSelectedValue();

  // Now you can use selectedValue and setSelectedValue in your component
};

import { useSelectedValue } from './selectedValueContext';

const SomeComponent = () => {
  const { selectedValue, setSelectedValue } = useSelectedValue();

  // Now you can use selectedValue and setSelectedValue in your component
};

Remember to wrap your app (or the part of your app that needs access to the context) with the SelectedValueProvider:

import { SelectedValueProvider } from './selectedValueContext';

const App = () => (
  <SelectedValueProvider>
    {/* Your app code here */}
  </SelectedValueProvider>
);

import { SelectedValueProvider } from './selectedValueContext';

const App = () => (
  <SelectedValueProvider>
    {/* Your app code here */}
  </SelectedValueProvider>
);

Please note that the code provided above is a general React example and not specific to Refine. The actual implementation may vary based on your application's requirements and structure. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4mo ago

<@243918634374660098> kapa.ai is still learning and improving, please let us know how it did by reacting below

quickest-silver•4mo ago

@kapa.ai is there anything that can be used in refine to share the selection globally?

kapa.ai•4mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- Refine doesn't provide a built-in global state management solution. However, it doesn't restrict you from using any state management libraries or techniques, such as React's Context API, Redux, Zustand, etc. For example, you can use React's Context API to share the selected value globally throughout your app. You can create a context and use a custom hook to access and update the selected value in your components. Here's a basic example of how you can create a context:

import React from 'react';

// Create a Context
const SelectedValueContext = React.createContext();

// Create a Context Provider Component
export const SelectedValueProvider = ({ children }) => {
  const [selectedValue, setSelectedValue] = React.useState();

  return (
    <SelectedValueContext.Provider value={{ selectedValue, setSelectedValue }}>
      {children}
    </SelectedValueContext.Provider>
  );
};

// Create a custom hook to use the context
export const useSelectedValue = () => {
  const context = React.useContext(SelectedValueContext);
  if (context === undefined) {
    throw new Error('useSelectedValue must be used within a SelectedValueProvider');
  }
  return context;
};

import React from 'react';

// Create a Context
const SelectedValueContext = React.createContext();

// Create a Context Provider Component
export const SelectedValueProvider = ({ children }) => {
  const [selectedValue, setSelectedValue] = React.useState();

  return (
    <SelectedValueContext.Provider value={{ selectedValue, setSelectedValue }}>
      {children}
    </SelectedValueContext.Provider>
  );
};

// Create a custom hook to use the context
export const useSelectedValue = () => {
  const context = React.useContext(SelectedValueContext);
  if (context === undefined) {
    throw new Error('useSelectedValue must be used within a SelectedValueProvider');
  }
  return context;
};

In your components, you can use the useSelectedValue hook to access and update the selected value:

import { useSelectedValue } from './selectedValueContext';

const SomeComponent = () => {
  const { selectedValue, setSelectedValue } = useSelectedValue();

  // Now you can use selectedValue and setSelectedValue in your component
};

import { useSelectedValue } from './selectedValueContext';

const SomeComponent = () => {
  const { selectedValue, setSelectedValue } = useSelectedValue();

  // Now you can use selectedValue and setSelectedValue in your component
};

Remember to wrap your app (or the part of your app that needs access to the context) with the SelectedValueProvider:

import { SelectedValueProvider } from './selectedValueContext';

const App = () => (
  <SelectedValueProvider>
    {/* Your app code here */}
  </SelectedValueProvider>
);

import { SelectedValueProvider } from './selectedValueContext';

const App = () => (
  <SelectedValueProvider>
    {/* Your app code here */}
  </SelectedValueProvider>
);

kapa.ai•4mo ago

<@243918634374660098> kapa.ai is still learning and improving, please let us know how it did by reacting below