How is DataSource and item properties used in canvas?
The DataSource and Item properties are used to identify the record to edit. Each input card has a Default property, which is usually set to the field of the form’s ThisItem record. The controls within the input card will then take their input values from Default. Normally you do not need to modify this.
How are computed fields used in data entities?
Computed field 1 Value is generated by an SQL view computed column. 2 During read, data is computed by SQL and is fetched directly from the view. 3 For writes, custom X++ code must parse the input value and then write the parsed values to the regular fields of the data entity. 4 Computed fields are used mostly for reads.
Do you have to modify a data source to change it?
Note that, to modify an existing record of a data source, the record must have originally come from the data source. The record may have traveled through a gallery, a context variable, and any number of formulas, but its origin should be traceable back to the data source.
Where are the computed fields stored in D365?
For writes, custom X++ code must parse the input value and then write the parsed values to the regular fields of the data entity. The values are stored in the regular fields of the data sources of the entity. Computed fields are used mostly for reads.
How to access different types of data sources?
Apps access these data sources by using Connections. This article discusses the different kinds of data sources and how to work with table data sources. It’s easy to create an app that does basic reading and writing to a data source.
How to understand data sources for canvas apps?
To get started, read the article Understand data forms. When you ask Power Apps to create an app from data, these controls are used. Behind the scenes, the app uses an internal table to store and manipulate the data that comes from the data source.