Answered

PCF Parameter Get values provided

(0) Share

Report

Posted on by rgomezArctictec

I would like to check whether an optional parameter was provided or not (to render the control differently based on that)

I declared the parameter with these attributes:

of-type="SingleLine.Text" usage="bound" required="false"

How could I check in the Typescript code whether this Input parameter was bound or not?

I tried setting a variable in the Init method, like

this.myVariable = context.parameters.theParameter.raw || ""

But I didn't really see the value reflected, so not sure if Init method would be the right approach, or there is another way to obtain this metadata

Thanks,

Categories:

Power Apps Pro Dev & ISV

I have the same question (0)

All responses (4)

Answers (1)

Sort by

Diana Birkelbach 3,072 Most Valuable Professional on at

Like (2)

Report
Copy link

Link copied!

Hi @rgomezArctictec ,

You could check if context.parameteres.<YOUR_PROPERTY>.type is null (or not SingleLine.Text). If so, the parameter was not defined in the customizing.

Kind regards,

Diana

Was this reply helpful? Yes No
rgomezArctictec 6 on at

Like (0)

Report
Copy link

Link copied!

Thanks Diana.
Actually I realized I was using the context variable in the wrong spot, once I put it in the correct Init method, I could do something like this:

myVariable = typeof (context.parameters.myParameter.attributes?.DisplayName) === "undefined" ? false : true

The reason is that context.parameters.myParameter was like an empty object {}, when not provided from the CRM form designer

Regards,

Was this reply helpful? Yes No
Verified answer

Diana Birkelbach 3,072 Most Valuable Professional on at

Like (1)

Report
Copy link

Link copied!
Hi @rgomezArctictec ,

The property values can be static or dynamic (from a field):

In case the customizing is done with a fixed value, then you have a type and a value, but the attribute is empty. So I still think that using property.type is safer than the property.attribute.DisplayName:

context.parameters.myParameter?.type === undefined

In case the property.type is undefined, then it was not set.

Just in case it helps: the context.properties are not always provided in the init method. Sometimes you get them only in the "updateView" method.

Hope it helps!

Kind regards,

Diana

----------
Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

Was this reply helpful? Yes No
rgomezArctictec 6 on at

Like (0)

Report
Copy link

Link copied!

Thanks Diana. Will use type property instead 🙂

Was this reply helpful? Yes No