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›UI design

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App solution

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Java services

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JavaScript

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Developer options

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Deployment

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Mobile App Solutions

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Mobile gesture

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Mobile widgets

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Mobile UI design

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Cards

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DataTable

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List

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Calendar

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CheckboxSet

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FileUpload

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Radioset

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Rating

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Select

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Progress Circle

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Charts

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Richtext Editor

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Live filter

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Container

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Tree

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Prefabs

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Team Poral Configure Vcs

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Edit

How to apply Custom Formatter for widgets


With Custom Formatter, customize data more specific to your audience. Convert data received from services to well-formatted data before showing it in the UI, depending on the role, country, currency, and more. In this example, we are using a Card Widget to show how it works.

note

For more information about Custom Formatter syntax and definition, see Custom Formatter.

Drag and Drop the Widget

  1. Drag and drop a Card widget, and bind the widget to a dataSet. In this example, we are using a model variable with the following static data.
[
  {
    "name": "Credit card",
    "dataValue": "9234567898765432"
  },
  {
    "name": "Debit card",
    "dataValue": "8294567898769876"
  },
  {
    "name": "Overdraft card",
    "dataValue": "7761640026883576"
  }
]
  1. Select a Label from the canvas. Go to the property panel, click the Bind property to start configuring the Label with a "new custom" data.

bind

  1. In the property Bind dialog, navigate to the Use Expression tab.
  2. From the Format Type dropdown, select the Add custom formatter.

Add custom formatter

  1. You will be navigated to the formatter.js script editor page.

formatter JS file

Credit Card Formatter

Here's a simple example snippet for formatting the credit card number to mask sensitive data. This enables to show full credit card number only to the cardholder, and mask the sensitive characters to the bank admin.

Credit card number formatter

  1. Add the following code snippet in the formatter.js file.
tip

For more information about the syntax, see Custom Formatter Syntax Definition.

Snippet

    creditcard: {
            formatter: function(data, param1, roles) {
                var hiphenSaperatedStr = data.match(new RegExp('.{1,4}', 'g')).join(" - ");
                var substring = hiphenSaperatedStr.substring(hiphenSaperatedStr.length - 4, hiphenSaperatedStr.length);
                var maskedData = '';

                if (roles && roles.length && roles[0] == 'user') {
                    maskedData = hiphenSaperatedStr.substring(0, hiphenSaperatedStr.length - 4);
                } else {
                    maskedData = hiphenSaperatedStr.substring(0, hiphenSaperatedStr.length - 4).replace(/d/g, param1);
                }
                return maskedData + " " + " " + substring;
            },
            config: {
                param1: {
                    name: 'Mask char',
                    widget: 'text',
                    value: 'X'
                }
            }
        }
  1. Next, go to the Use Expression tab. Expand the Format Type dropdown, you can see the new formatter under the Custom section.

Apply formatter

  1. When you select the new formatter called creditcard, the text widget will be configured to it where you can send custom params param1 to the formatter function.
tip

You can edit the custom or mask characters here.

Config params

Enabling Role-based Viewing

Allow viewing only to specific role-based settings to control who sees what. Therefore, the formatter needs roles to be configured.

  1. For the roles to work, enable Authentication. In this case, we are using the Demo security provider. Enable these settings and come back to the Use Expression dialog.
note

The snippet already contains the role-based condition in it.

  1. From the Use Expression tab, go to the Variable section, bind the roles to loggedInUser. For this, select the roles property then the expression will be built.
Variables.loggedInUser.dataSet.roles
note

Ensure to add the colon : after the defined-custom character.

Custom roles params

  1. Click Bind to save the expression.

Preview the app and log in as an admin to see masking of the sensitive characters.

See Also

Custom Formatter

Last updated on 7/15/2020 by Swetha Kundaram
← Custom Template for WidgetsDynamic Menu based on User Role →
  • Drag and Drop the Widget
  • Credit Card Formatter
    • Snippet
  • Enabling Role-based Viewing
  • See Also
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