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Remove last character in string IF the last character is a specific character like ; or |

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Posted on by Community Power Pla... Microsoft Employee

In my form I have a couple of text inputs that add to a collection. On input, it separates each item in the collection with |.

It then saves the collection to a SharePoint field and it will look something like

1;test1;no;yes|2;test2;no;yes|3;test3;yes;yes|4;test4;no;no|

I'm displaying the collection in a gallery by splitting it at |. The problem is on the last | it assumes there's another item after it, but there isn't, that's support to be the end.

I used Left(varStringofCollection, len(varStringofCollection) -1) to remove the ending | and that works.

But the problem I noticed is that some users will open the item multiple times before saving it and instead of it opening as

1;test1;no;yes|2;test2;no;yes|3;test3;yes;yes|4;test4;no;no

It will open as
1;test1;no;yes|2;test2;no;yes|3;test3;yes;yes|4;tes

basically removing parts of the collection. I want to only remove the last | from the string. If it's not there, then do nothing.

Any ideas?

Thanks!

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mdevaney 29,991 Moderator on at

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@Anonymous
Assuming you have a string value like this:

Set(myText, "1;test1;no;yes|2;test2;no;yes|3;test3;yes;yes|4;test4;no;no|")

We can conditionally remove the last item if it is a pipe | or otherwise do nothing.

Set( With( {varText: "1;test1;no;yes|2;test2;no;yes|3;test3;yes;yes|4;test4;no;no|"}, If(Right(varText,1)="|", Left(varText, Len(varText-1)), varText ) )

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Community Power Pla... Microsoft Employee on at

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Awesome! Thank you for the quick reply.

What is the With doing? Have never used that before.

Also, the vartext would be pulled from a SP list. So mine would look something like

Set( With( {varMonitorPressureAllItems: ThisItem.MonitorPointPressure}, If(Right(varMonitorPressureAllItems,1)="|", Left(varMonitorPressureAllItems, Len(varMonitorPressureAllItems-1)), varMonitorPressureAllItems ) )
Getting errors though. Is the With necessary or can I just the If Right?

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mdevaney 29,991 Moderator on at

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@Anonymous
WITH allows you to store a variable for a specific section of code and then immediately deletes it when the function is complete. I like to use it because my code will only make 1 call to SharePoint instead of up-to 3.

What errors are you getting. Please supply the full error message and a screenshot of your code.

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Community Power Pla... Microsoft Employee on at

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This is the call that happens on select of the gallery button. If I input yours the whole thing turns red. I may now be putting it in the right place?
Set( varWAPItem, ThisItem ); If( IsBlank(varWAPItem.MonitorPointPressure), Clear(colMeasurePointPressure), Set( varMonitorPressureAllItems, varWAPItem.MonitorPointPressure ); ForAll( Split( varMonitorPressureAllItems, "|" ), Collect( colMeasurePointPressure, { ppLocationItem: PlainText( Last( FirstN( Split( Result, ";" ).Result, 1 ).Result ).Result ), ppPSIItem: PlainText( Last( FirstN( Split( Result, ";" ).Result, 2 ).Result ).Result ) } ) ) );
I think there's some missing syntax, it doesnt like the whole thing.
If( IsBlank(varWAPItem.MonitorPointPressure), Clear(colMeasurePointPressure), Set( varMonitorPressureAllItems, varWAPItem.MonitorPointPressure ); Set( With( {varMonitorPressureAllItems: ThisItem.MonitorPointPressure}, If(Right(varMonitorPressureAllItems,1)="|", Left(varMonitorPressureAllItems, Len(varMonitorPressureAllItems-1)), varMonitorPressureAllItems ) ); ForAll( Split( varMonitorPressureAllItems, "|" ),

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mdevaney 29,991 Moderator on at

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@Anonymous
Sorry, but that section of wavy code is a little much for me to parse. I don't necessarily understand what's going on here. Simplifying the code/question might help.

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Community Power Pla... Microsoft Employee on at

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FYI I got it to work but only by removing the with. Thanks for the help

Set( varMonitorPressureAllItems, If( Right( varMonitorPressureAllItems, 1 ) = "|", Left( varMonitorPressureAllItems, Len(varMonitorPressureAllItems) - 1 ), varMonitorPressureAllItems ) );

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