From Xojo Documentation
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Return the number of rows for the section.
|table||The iOSMobileTable instance using this data source.|
|section||This is the section that has been requested.|
Your class should return the number of rows in your data source for this section. For example, if you are showing a list of names in sections for the first letter of the last name, then this method would return the number of names in the specified section.
Refer to the data source example in the User Guide to see how to set up a Data Source that returns names, with sections for the first letter of each last name.
You can also refer to the sample project included with Xojo: