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MultipleTopLevelWebVIs

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Multiple Top-Level WebVIs

Multiple Top-Level WebVIs Demo Link Multiple Top-Level WebVIs README Link

This example demonstrates how to create a web application with multiple pages by using multiple top-level WebVIs and Hyperlink controls to link between them. When you build the web application, each top-level WebVI generates a separate HTML file with links to the other HTML files that are generated.

Screenshot of Demo

Dependencies

  • G Web Development Software

Setup

  1. Clone the ni/webvi-examples repository to your machine.
  2. Open MultipleTopLevelVIs/MultipleTopLevelVIs.gwebproject
  3. On the Project Files tab, expand WebApp.gcomp and open index.gviweb
  4. Click the Run button.
  5. Build the web application.
    a. On the Project Files tab, double-click WebApp.gcomp to open the web application component.
    b. On the Document tab, click Build.
    • To view the build output on your machine, click Output Directory on the Document tab once your application finishes building.
    • To launch and view the Web Application locally you can use the Run button on the Document tab.

Hosting

You can manually the move the build output found at \MultipleTopLevelVIs\Builds to any web server. This project also includes a Distribution (WebApp.lvdist) that can be used to build a package (.nipkg). Packages utilize NI Package Manager to automated the process of installing, upgrading, or removing the web app. A package is also a requirement for hosting a Web application on SystemLink Cloud.

SystemLink Cloud Web App Hosting

The following steps can be used to host the web app on SystemLink Cloud

  1. Open MultipleTopLevelVIs.gwebproject
  2. Open WebApp.lvdist
  3. Click the build icon in the top command bar of this distribution document
  4. Open a Web browser and navigate to https://www.systemlinkcloud.com/webapphosting
  5. Click the Choose nipkg button and select the nipkg built in step 3.
  6. When the upload is complete, click on your newly uploaded Web app from your list of Web apps

Local Hosting

The following steps can be used to host the web app on a local web server

Hosting on the NI Web Server with a nipkg

  1. Open MultipleTopLevelVIs.gwebproject
  2. Open WebApp.lvdist
  3. Click the build icon in the top command bar of this distribution document.
  4. Double-click the nipkg and follow the on screen instructions.
  5. Open a web browser and navigate to http://localhost:9090/incorporateuserresources/

Hosting on the LabVIEW 2009-2021 Web Server

  1. Open C:\Program Files (x86)\National Instruments\Shared\NI WebServer\www
  2. Copy the WebApp_Default Web Server directory into the www directory.
  3. Open a web browser and navigate to http://localhost:8080/WebApp_Default%20Web%20Server/

Hosting on the NI Web Server

  1. Open C:\Program Files\National Instruments\Shared\Web Server\htdocs
  2. Copy the WebApp_Default Web Server directory into the htdocs directory.
  3. Open a web browser and navigate to http://localhost:9090/WebApp_Default%20Web%20Server/

Details

File Name and Relative URL

Each of the top-level WebVIs generates a corresponding HTML file. The organization of the generated HTML files mirrors the hierarchy of WebVIs marked as top-level in the WebApp.gcomp file.

On the Item tab, you can change the file name for each WebVI and view the relative URL used for linking.

Top-level WebVIs can be in any part of the namespace

Top-level WebVIs do not need to be at the root of the namespace. For example, SubVIs/Attribution.gviweb is marked as top-level and has a relative URL of SubVIs/Attribution.html.