How to set default value of check box (always ticked at start screen)

[laurent_rio]

Hi,

I try to put checkbox input on gym booking card collect and card return (patching) on galery. My issue everytime new row coming to galery , the checkbox of collection (card collected) default always check
Anyhow how to set default of the checkbox ?
this my formula for 
Oncheck :

Patch('Gym Pass',BrowseGallery5_1.Selected,{Collection:Checkbox1.Value})

Onuncheck:

Patch('Gym Pass',BrowseGallery5_1.Selected,{Collection:Checkbox1.Value})

default:

If(ThisItem.Collection=true,true,false)

 Note :
Gym Pass = share list point; Collection = column name in SP List (i use yes/no)
data success patch when tick/untick 

[mdevaney · Accepted solution]

@laurent_rio 
What code are you using to add a new record to the gallery's collection?  Your code above looks good so my theory is your code to add new records is giving the field 'Collection' a value of true by default.  One idea to fix this is to set the default value to "false" in the SharePoint column.  Another is to PATCH a "false" value when creating the record.

Please share your 'new record' code so I can advise on what to do.

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