- What is deference between Collect and Clearcollect?
- Collect will create the collection and it will add data to the collection,
- Clearcollect also create the collection but it will refresh the data in the collection before adding data to the Collection
- How many type of variables available in the Power apps ?
- We have 2 types of variables available in the power apps.
- Local Variable : Local variables are available in the with in the context of Screen To declare local variables we can user Update context ({ name: value}).
- Global Variables : Global Variable are available with in the context of the Application. To declare a variable we can use Set(variable name, value)
- What is the media file size which support in Power apps?
- Total 200 MB and for single file which is 64 MB
- Difference between Canvas app and Model driven app?
- Canvas app are used to design app it is more in to user interface, Model driven apps work with Data model.
- Canvas app connect with 350+ connectors and model driven connect with Dataverse.
- Canvas app we cannot inject Client side code, in Model driven we can inject Client-side code
- Model driven responsive by defaults, Canvas are not.
- Difference between Patch and update?
- Patch we can add and modify the data, with patch we can do partial data modification.
- Update we cannot do partial update, if we are not passing value it will empty the values in the record.
- Power app item fetch limit?
- 2000 items maximum without delegation. 500 items are default limit.
- How to get last 10 items in the Power Apps?
- using LastN(datasourcename, 10), it will get last 10 items from the data source.
- How many ways we can save data to data source?
- we can save the data to data source using Patch and Submitform formulas
- How to get the current logged in user name in Power Apps?
- Using User().FullName formula.
- What is delegation in Power apps?
- Delegation minimizes the data flow between app and data source, the data processing tasks are assigned to data sources rather than done by Power Apps itself. Power app directly support maximum 2000 items retrial, using delegation we can overcome this issue.