Build React Native App (4) - Redux, Jest, and NativeBase

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From this blog, typescript feature will be added. There are couple of ways to implement static type checking like; flow from facebook, PropTypes and Typescript. Typescript is well integrated with Visual Studio Code and supports better linter, error messages, and intellisense. Reference site Github Sample Ex4 Currnet version D:\GitRepo\reactnative>npm --version 6.3.0 D:\GitRepo\reactnative>react-native --version react-native-cli: 2.0.1 react-native: n/a - not inside a React Native project directory D:\GitRepo\reactnative>yarn --version 1.9.4 Creating React Native App $ react-native init ex4 If you want to specify the version, add "--version 0.57.3" at the end. Add NativeBase to React Native $ npm install native-base --save ... + native-base@2.8.1 added 71 packages from 42 contributors, removed 50 packages, updated 829 packages and audited 34989 packages in 138.542s found 0 vulnerabilities $ $ yarn yarn install v1.9.4 warning package-lock.json found. You...
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How to populate list of dropdown from PowerApp

Introduciton

To show the list of dropdown, the data should be defined in advance by static or from somewhere such as DB or rest.

Collect, Clear, and ClearCollect function

There are three functions in Powerapp related to defining and clearing data

  1. Collect: This will add list to existing data whenever it is called.

  2. Clear: Reset data

  3. ClearCollect: This is combination of Clear and Collect. This will reset existing data and will add new value

Defining data for dropdown

Add dropdown to the canvas

Powerapp dropdown menu

Click advanced from properties

Powerapp dropdown advanced

Define list of data at "OnSelect" function

ClearCollect(ItemDropdownList, "Item1", "Item2", "Item3")

Link the List to dropdown list from "Items" Textbox

ItemDropdownList

Powerapp dropdown advanced with Value

Dropdown result

Dropdown with value

Summary

This is most simple way to show dropdown list and if you use UpdateContext or other functions, you can poplulate data from REST API.

Comments

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