Power Apps Calendar Component - How to Disable/block Weekends & past/back dates

[Jean_9681]

I am using the PowerApps OOTB Calendar Screen components to select multiple dates/days and i am trying to  disable the past/back dates and weekends so users cannot select back dates so far i was able to disable just one day of the week by setting 
 the Display Mode of Title4/label in the gallery to 

If(Weekday(DateAdd(_firstDayInView, ThisItem.Value, Days))=7,DisplayMode.Disabled,DisplayMode.Edit)

 & set the Disabled Fill Property to 

If(Weekday(DateAdd(_firstDayInView,ThisItem.Value, Days))=7,LightGray)

Need some help with the correct formula to disable (Sunday and past dates)..

Thank you for your time..

[EricBLott · Accepted solution]

DisplayMode property:

With(
    {
        calendarDate: DateAdd(
            _firstDayInView,
            ThisItem.Value,
            Days
        )
    },
    If(
        Or(
            calendarDate < Today(),
            Weekday(calendarDate) in [1,7]
        ),
        Disable,
        DisplayMode.Edit
    )
)

Fill Property:

With(
    {
        calendarDate: DateAdd(
            _firstDayInView,
            ThisItem.Value,
            Days
        )
    },
/*Fill value changes if the gallery item day = today, or if it lies outside of the current month*/             
If(
    calendarDate < Today(),RGBA(200, 200, 200, 0.3),
    /*Date selected is today*/
    calendarDate = Today() && calendarDate = _dateSelected, RGBA(0,0,0,0),
    /*Today when it is not selected*/
    calendarDate = Today(), ColorFade(Subcircle1.Fill, 0.67), 
    /*The day is outside the range of the currently selected month*/
    Abs(Self.Text - ThisItem.Value) > 10,RGBA(200, 200, 200, 0.3), RGBA(0, 0, 0, 0)))

You can set DisabledFill back to RGBA(0, 0, 0, 0)

[EricBLott · Accepted solution]

Correction, the Fill property needs to be set to this:

With(
    {
        calendarDate: DateAdd(
            _firstDayInView,
            ThisItem.Value,
            Days
        )
    },
/*Fill value changes if the gallery item day = today, or if it lies outside of the current month*/             
If(
    Or(calendarDate < Today(),Weekday(calendarDate) in [1,7]),RGBA(200, 200, 200, 0.3),
    /*Date selected is today*/
    calendarDate = Today() && calendarDate = _dateSelected, RGBA(0,0,0,0),
    /*Today when it is not selected*/
    calendarDate = Today(), ColorFade(Subcircle1.Fill, 0.67), 
    /*The day is outside the range of the currently selected month*/
    Abs(Self.Text - ThisItem.Value) > 10,RGBA(200, 200, 200, 0.3), RGBA(0, 0, 0, 0)))

[Jean_9681]

@EricBLott Thank you so much, this is exactly what i was trying to achieve.. 

[Jean_9681]

@EricBLott  The solution works perfect for the background color fill, however the users can still click/select the weekends and past days 
i was hoping to disable past days and weekends 😞 

[EricBLott]

@Jean_9681 Even after setting the DisplayMode property of the calendar gallery item to the formula I pasted? It's working on my end. 

**I noticed a typo in my formula. Try this one for DisplayMode 

With(

    {

        calendarDate: DateAdd(

            _firstDayInView,

            ThisItem.Value,

            Days

        )

    },

    If(

        Or(

            calendarDate < Today(),

            Weekday(calendarDate) in [1,7]

        ),

        Disabled,

        DisplayMode.Edit

    )

)

[Jean_9681]

Thanks @EricBLott it works now.. 

[Nagarajan1]

_firstDayInView isn't recognized, can you help me please