Answered

complex IF/DefaultResult statement

(0) Share

Report

Posted on by djs-tas

I hope this isn't a silly question. I've looked at " If and Switch functions - Power Platform | Microsoft Learn"

I'm checking to make sure each box on my canvas has been filled in before patching.
Am I doing this right? check each condition, then group the DefaultResult inside parenthesis? I know the syntax is not precisely correct, but I am hoping it is clear enough. I am focusing on how to do the Default result, when the multiple set statements need to be separated with a comma, but they are not meant to be additional conditions.

If(
(TextInput1_1.Text ="Text input"), (Set(TextCanvasvar1,"No Input 1")),
(TextInput1_2.Text="Text input"), (Set(TextCanvasvar2,"No Input 2")),
(TextInput1_3.Text="Text input"), (Set(TextCanvasvar3,"No Input 3")),
//default
(Set(TextCanvasvar1,"default1"),
Set(TextCanvasvar2,"default2"),
Set(TextCanvasvar3,"default3")
) //end default
); // end if

I've tested it. power apps definitely does not like my default steps.
any thoughts?

Categories:

Building Power Apps

I have the same question (0)

All responses (6)

Answers (2)

Verified answer

VishalJhaveri 1,167 Moderator on at

Like (0)

Report
If(IsBlank(textbox1), Navigate(errorScreen), If(IsBlank(textbox2), Navigate(errorScreen), If(IsBlank(textbox n), Navigate(errorScreen), Set(var1,textBox1.Text); Set(var2,textbox2.Text);Set(varn,textBoxn.Text)))

Was this reply helpful? Yes No
djs-tas 16 on at

Like (0)

Report

I might be tired. my eyes are getting blurry. I think I may have tried this and got funny results. You may be right. I am thinking out loud.
The syntax (as I understood) is
If (
condition1, true executable statement,
condition2, true executable statement,
default executable statement
)
most programming languages use cascading if statements, but in Power Apps, a cascading if would be the 'default case' of the 'parent' if statement (in effect, the false case of the parent)
so the first Set (variable, value); terminates the last (innermost) if statement with a semicolon. The second Set (,); terminates the middle If with a semicolon, and the last Set(,) does not need a semicolon because the closing parenthesis terminates all the other if statements

Was this reply helpful? Yes No
Verified answer

timl 36,393 Super User 2025 Season 2 on at

Like (0)

Report
Hi @djs-tas

If I understand you correctly, the answer is to separate default conditions with semi-colons rather than parenthesis. It would look more like this:

If( (TextInput1_1.Text ="Text input"), (Set(TextCanvasvar1,"No Input 1")), (TextInput1_2.Text="Text input"), (Set(TextCanvasvar2,"No Input 2")), (TextInput1_3.Text="Text input"), (Set(TextCanvasvar3,"No Input 3")), //default Set(TextCanvasvar1,"default1"); Set(TextCanvasvar2,"default2"); Set(TextCanvasvar3,"default3") //end default ); // end if

Was this reply helpful? Yes No
djs-tas 16 on at

Like (0)

Report

sometimes, Power Apps does not honor step-by-step execution, so if I were to code
If (condition1, statement1) ;
If (condition2, statement2) ;
If (condition3, Navigate(another screen));
There is no guarantee that If1 and If2 will be processed. It is not reliable or predictable, as far as I can tell, which makes using the cascading If statements concerning to me.

Was this reply helpful? Yes No
djs-tas 16 on at

Like (0)

Report

You are correct. This works.
why does the last default case not have a semicolon?

Was this reply helpful? Yes No
djs-tas 16 on at

Like (0)

Report

another possible solution (although, not very graceful) that I came up with is to use another screen, where the 'OnVisible' property sets all the values, and ends with a call to the Back() function.
while not ideal, are there problems with this solution? I am learning (trying to learn). This way would not be very readable. Might be slow?

Was this reply helpful? Yes No