Not necessary. I'm suggesting in order to use best practices for creating your app, you will need 4 separate tables to describe what you have in the single spreadsheet table that you are currently using. Each table must have an ID column (Primary Key) and in the case of the LeaveWork and TimeWorked tables, there would be a column for the Foreign keys of the other tables to create the relationships. Please review my 4 posts in the Community blog to understand why this is desirable and why what you are doing with a single table is a poor design for an app. Please start with Database-Design-Fundamentals-and-PowerApps-An-Overview and then the three steps to building your tables in preparation for creating the app. In the meantime, could you post the excel file for your spreadsheet and I will help you out with it by recreating the tables that you can use in your app from the data you alread have.
Thanks a lot for your email and your attached app. However, I'm trying to add new records, not edit existing ones:
This is what I'm trying to accomplish: Add all this information on one screen and add it all to the 'EmployeeDetails' table. The boxes next to the categories are for 'HoursSpent' values, and the 'TotalHours' value is calculated as the sum of all the entered 'HoursSpent' values.
The only way I figured out how to display all the categories at the same time is using a gallery, and then adding a Text input box next to them. I can format the text inputs as numerical values, but how do I save all this to my data source?
You don't need a form or gallery to do what you want. Since all of the items are entered once a month, change your Excel table to have them all in one row. Name the Table employeedata,
The HoursSpent column is calculated as shown in the box above the table.
Take a blank screen and add a Dropdowns for Month and Year. Put the Labels, Dropdowns and Textinput controls on it as you have shown in your figure above. The Submit button should have as the OnSelect property,