Component Property Values

[sperry1625]

I am writing a generic component that I want to use across the Power Apps I build.  I would like to set default values for these properties but in order to do that I need to know if the properties are empty.  For certain properties it is straight-forward, like strings.  But for others, not so much.  For example, I have several properties of type Color.  I want to know if a Color property was provided.  How can I do that?  IsEmpty(), IsBlank() and IsError() all return false.

Thoughts?

[RandyHayes · Accepted solution]

@sperry1625 

When you create a component, you always need to set the default values for the properties of the component.  

So, if for example, you set a property with a default property of Red color, then you can always check to see if the value is still Red - if not, then it has been changed.

I hope this is helpful for you.

[GarethPrisk]

IsBlank(inputParam) does work, but you can also use IsBlankOrError to account for erroneous scenarios as well.

Keep in mind, when working with components:

• When using the component editor, it will use the defaulted value for the property
  • You'll likely have a default value (either set by app, or by you)
  • It would return a value, in the component editor
• Once added to a screen
  • Select the input property
    • Clear it
    • Set is as Blank()

For example, in the component editor

On a screen, with a value set

On a screen, with no value set