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A custom control template for Universal Dashboard.
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Universal Dashboard Custom Control Template

A custom control template for Universal Dashboard.

Developing Custom Components

You can use this template to develop custom components. You will need to install NodeJS to be able to build React components.

Step 1

Install the React component that you would like to implement using npm.

For example, we could install react-leaflet with the following command. react-leaflet also requires react-dom and leaflet. This type of information will be found on the package's documentation.

cd .\src
npm install react-leafleft --save 
npm install leafleft --save 
npm install react-dom --save 

This will save the package to the package.json file.

Step 2

Create a React component to register with UD. This can be done by editing the .\src\Components\component.jsx file.

For example, I could wrap react-leaflet in a custom component. The props for the component will come directly from PowerShell.

import React, {Component} from 'react';
import { Map, TileLayer } from 'react-leaflet';

export default class UDMap extends Component {

  componentDidMount() {
      document.getElementsByClassName('leaflet-container')[0].style.height = this.props.height;
      document.getElementsByClassName('leaflet-container')[0].style.width = this.props.width;

  render() {
    const position = [, this.props.lng]
      return (
          <Map center={position} zoom={this.props.zoom}>
              attribution='&amp;copy <a href="">OpenStreetMap</a> contributors'


Step 3

Register the new component with Universal Dashboard. This component will load dynamically when someone uses it.

This can be done in .\src\Components\index.js. The first parameter in the register function is the type name for the component. This needs to be unique and match what you will specify in PowerShell.

import UDMap from './component';
UniversalDashboard.register("ud-map", UDMap);

Step 4

Create a PowerShell function in the module to create the component. The ID parameter is required. You will also need to set the AssetID, type and isPlugin properties. The type should match what you registered in index.js.

The rest of the properties are optional and are passed down to the React control via props.

function New-UDMap {
        [string]$Id = (New-Guid).ToString(),
        [string]$Height = '500px',
        [string]$Width = '100%'

    End {
            assetId = $AssetId 
            isPlugin = $true 
            type = "ud-map"
            id = $Id

            lng = $Longitude
            lat = $Latitude
            zoom = $Zoom
            height = $Height
            width = $Width

Step 5 (Optional)

Although not required, you can rename the UniversalDashboard.Template.psm1 file to match the control(s) you are building. You will also have to update the build.ps1 file to match your renamed module name.

Rename-Item .\UniversalDashboard.Template.psm1 .\UniversalDashboard.Map.psm1

Step 6

Build and test the component. You can build the component using the .\build.ps1 script. This will output the module to the .\src\output folder. Once built, you can load it into Universal Dashboard.

If the output directory is not part of $PSModulePath, you should use the full path.

Import-Module UniversalDashboard 
Import-Module "F:\ud-leaflet\src\output\UniversalDashboard.Map\UniversalDashboard.Map.psd1"

Start-UDDashboard -Dashboard (
    New-UDDashboard -Title "Map" -Content {
        New-UDMap -Latitude 51.505 -Longitude -0.09 -Zoom 13 
    } -EndpointInitialization (New-UDEndpointInitialization -Module ("F:\ud-leaflet\src\output\UniversalDashboard.Map\UniversalDashboard.Map.psd1"))
) -Port 10000

Full Source Code

You view the full source code for this example, look at the ud-leaflet project.

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