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I would like to set a default value to a DateTime aura:attribute,
but could not find the correct format. I tried the following but it didn't work:
<aura:attribute name="myDateTime" type="DateTime" default="1981-08-26T00:00:00.000Z"/>
When I try to save, I receive the following error: Failed to save undefined: For input string: "1970-01-01T00:00:00.000Z".
It seems I can use a number that will end up being added to the Unix Epoch time but well, that's not really convenient.
Very interesting question.
I did some research on it and found this gitHub repository, someone has tried to play with default values of all kinds of basic types.
Scene 1:
Simply putting the below line doesn't work.
<aura:attribute type="Datetime" name="datetimeDefaultWithTimeString" default="2013-03-06T10:17:36.789Z"/>
however if you do the exact same line with type="Date", it takes the whole thing and displays as Datetime.
<aura:attribute type="Date" name="dateDefaultWithTimeString" default="2013-03-06T10:17:36.789Z"/>
Scene 2:
In the other hand, datetime attributes take string as default value and the string needs to be a digit.
<aura:attribute type="DateTime" name="dateTimeDefaultZero" default="0"/>
This would default the attribute to 1970-01-01T00:00:00.000Z, start of calendar I guess.
Again, defaulting it to 1 will increase the mili second part by 1, i.e 1970-01-01T00:00:00.001Z
<aura:attribute type="DateTime" name="dateTimeDefaultWithString" default="1"/>
Similarly, defaulting it to 1000 would increase the time by 1 second. So in short, it takes millisecond value and adds to 1970-01-01T00:00:00.000Z.
Scene 3:
Now again, the following is allowing me to provide a full length datetime string as default value and its displaying the same too.
<aura:attribute type="DateTime" name="datetimeDefaultWithTimeLiteralExp" default="{!'2016-03-06T10:17:36.789Z'}"/>
I could have just put the 3rd scene directly as an answer but I would like to see what other experts think about this case.
Many Peoples searching for this, but this is the right place to comment.
Working Default format in Lightning design system: 2018-01-06T00:00
Javascript:
moment(new Date(), "DD-MM-YYYY").add(1,'days').format("YYYY-MM-DD")+'TT00:00')
