Error accept data Weekday, Weekday Name

MIT App Inventor Help
1

Hello,

week
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I have tried all the options with the blocks you see below the error message, but it always comes out.
I have tried both Weekday and WeekdayName.
I tried MM/dd/YYYY, MM/dd/YYYY hh:mm:ss, dd/MM/YYYY.
I tried putting makeistant first and then after weekday.
I need to know if the date in the textbox is Sunday or not.
I do not know what to do.
Thanks for your help.

2

In order to work date format should be in the form of MM/dd/YYYY. How do you set date in textbox ?

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3

Something like this:

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4

Thanks for your answer.
How you can see, I set the day in the format MM/dd/YYYY, and then dd/MM/YYYY I tried both systems.

5

Thanks for your answer.
Why "random..."?
I already have a date in the textbox "datario".
If I change everything you put in blue with the textbox, does it work?
And How have I to change it? Just put clock.year istant = datario.text and so on?
Or I meet another error message?

6

In a textbox I can write date in all forms, for example 23/6/2021, 6/23/2021, 6-23/2021 ..etc. It is better to create 3 textboxes, set them to use only numbers

image and then

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7

Now it works, thanks dora_paz.
But, can you explain me how I should have to do in my case, where I have one only text box which takes the value of the date from a datapicker. I understand when you say that in a textbox we can write in many different ways, dd-mm-yyyy, mm/dd/yyy, mm;dd;yyy, etc... but starting from a datapicker to a textbox or, better, to a label, there is no danger of making a mistake.
Thanks for your teaching, I appreciate it.

8

I see a common thread in the OP's code that needs to be addressed.

Blocks that eat Instants need to be given Instants.
Pieces of text are not Instants.

Shield your eyes, I am about to show what you what is in an Instant
(scroll down)
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Capture

It's enough to melt your eyeballs.

9

That was just an example, for testing purposes. You apply whatever instant you want.