Mail merge in TypeScript Rich Text Editor Control
18 Nov 20181 minute to read
The Rich Text Editor can be customized to implement Mail Merge functionality by inserting placeholders into the editor using custom toolbar items. These placeholders are later replaced with actual data to generate personalized content such as letters, invoices, and reports.
This feature simplifies the creation of dynamic documents by allowing users to insert merge fields that are automatically populated with real data during content generation.
Adding custom toolbar items for inserting merge fields
To enable mail merge functionality, the Rich Text Editor toolbar is extended with two custom buttons: Insert Field and Merge Data. These buttons are added using the template property in toolbarSettings.items, which points to custom HTML elements (#insertField and #merge_data).
- Insert Field: Opens a dropdown list of merge fields for inserting placeholders like {{FirstName}} into the editor.
- Merge Data: Replaces all placeholders in the editor with actual values from a predefined data source.
Using DropDownButton for selecting placeholders
The DropDownButton component displays a list of merge fields such as First Name, Last Name, and Company Name. When a user selects an item, the corresponding placeholder (e.g., ) is inserted at the current cursor position using the insertHTML command.
Populating merge fields using Mention
The Mention control provides an alternative way to insert placeholders by typing the {{ character inside the editor. A popup list of merge fields appears, allowing quick selection without using the toolbar.
Replacing placeholders with actual data dynamically
When the Merge Data button is clicked, the editor content is processed to replace all placeholders with actual values from the placeholderData object. This is done using a regular expression in the replacePlaceholders() function.