Passing string variable to a custom page from command bar button

[paul_matthews]

Hi

I have a model driven app and a custom page which I am using as a side dialog.  I have created a command bar button (main form) using the new commanding functionality and have successfully passed the ID of the selected record into the custom page and retrieved it.

I now want to pass a string parameter into the custom page, which I thought would be straight forward, but I am having some unexpected issues where the Param value in the custom page is always blank.

Here is my setup

Command Button

JavaScript

Custom Page

In the custom page I am trying to retrieve the parameter as follows

Set(OfferType,Param("offerType"));

From what I have read, this may not be possible and that first parameter of the NavigateTo function does not support custom params.

If the commanding functionality allows us to add a string parameter then how do we retrieve that parameter in the custom page?

If this is not possible then I will have to either re-design my custom page or duplicate it which is not a good solution.

I am not an experienced JS coder so if I missed something here then please let me know.

Any help would be appreciated.

thanks

[PowerThomas]

As far as I know it’s not possible to pass custom parameters to a custom page with the JS navigate function. Can you explain a bit more what you’re trying to accomplish? Maybe we can come out with a different solution that would fit your needs?

[PowerThomas · Accepted solution]

As I read through your JS function, you want to pass an Offer Type to your custom page. I assume that you want to have multiple command buttons to pass different Offer Types.

Could you instead make one button to open the custom page and select the Offer Type inside the custom page?

[paul_matthews]

Hi PowerTomas

thanks for your response, yes that is my backup option, however I was hoping to have multiple options on the command bar.  

I don't really know why the option to pass a string parameter is available on the commanding tool if you cannot then pass the parameter into the custom page.

thanks

[PowerThomas]

Hi @paul_matthews,

That is because you can also call other JS functions which could require parameters.

[PowerThomas]

@paul_matthews This thread might solve your problem. I haven't tried it out yet, but it looks promising: https://powerusers.microsoft.com/t5/Building-Power-Apps/Model-Driven-App-Custom-Pages-Passing-multip...

[paul_matthews]

thanks @PowerThomas , I did see this and I think it would work.  However I do not want to use any unsupported methods that MS could update which would then break my code.  My understanding is that the JS function parameter should only accept a GUID, and just because MS are not checking this doesn't mean they won't start.

thanks for your responses.

[PowerThomas]

Fair point..

The docs are clear about the available params for custom pages: navigateTo (Client API reference) in model-driven apps - Power Apps | Microsoft Learn

[Amik]

@paul_matthews - 

I have raised a similar thread in the dynamics forum. I will let you know how I get on.

https://community.dynamics.com/365/f/dynamics-365-general-forum/487297/pass-string-parameter-from-co...