Salesforce Lightning: Playing with Datatable Rows

Business Requirement

I recently came across a need from a customer where the following was needed :

1. Show a List of records (e.g. Contacts) to a user from which the user should be able to select only one record.
2. If the user does not find the required Contact in the table then, the user should be provided with an option to create a new Contact on the same page.
3. If the user is opting for creating a new contact then, the user should not be allowed to select a record from the list of records. In short, a user should either select a single record from the table or create a new one but not both.

Technical Components

1. Show the list of records (with criteria as required )using a <lightning:datatable>
2. Provide a checkbox for the user to indicate he/she wants to create a new Contact.
3. Show a <lightning:recordEditForm> to capture the fields as required to be shown on the form.

Technical Solution

All the logic of handling the clicks of Checkboxes and disabling the checkbox on data table is done via Javascript. I have used the Aura Framework to get this done. Below is the link to the code for your reference:

KasukhelaGautam/Salesforce-DatatableSingleRowSelect

Component in Action