How to make a field validate with a higher value than another field

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Posted on by GordoPwrApp

Hi All,

I have four fields in a form-

Start Odo and End Odo

Start Date/Time and End Date/Time

I would like to make it so that the End Odo field must validate to be higher value than the Start Odo field when a user enters data and the same with Start and End Date/Time.

If it is lower, the form throws up an error when submit is pressed and likewise with date/time fields. However, I need to have it so that if there is nothing entered in the End Odo field the form will still submit. (so the user creates a record and come back to it later to complete it) It should only throw an error if a user actually enters a number in it.

I have tried something like this code in the End Odo 'OnChange' field which does throw up an error saying that its lower, but I'm not sure about what to put in the 'Submit' button-

If(Value(DataCardValue35.Text)>Value(DataCardValue48.Text),Notify("End Odometer must be more than Start Odometer",Error);Reset(Self))

Appreciate any help.

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi @GordoPwrApp,
Do you want to throw an error only when the end date is lower than the start date?

I suggest you set the DisplayMode property of the submit button as below:

If(Value(DataCardValue35.Text)>Value(DataCardValue48.Text),Disabled,Edit)

Then set the OnSelect property of the submit button as below:

SubmitForm(Form1)

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GordoPwrApp 91 on at

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Hi @v-qiaqi-msft

Thanks for your reply.

I can't have the submit button greyed out, as I still need the option for a user to submit and create a record without an end odometer, so they have the option to complete that later at the end of their trip.

I only want an erro pop up when the user actually enters a value in the end odo field, and trigger if it is lower than the start odo field.

In regards to the start and end date, I have it working ok with the below code-

If(
Or(
IsBlank(
DateValue3.SelectedDate + Time(
Value(HourValue3.Selected.Value),
Value(MinuteValue3.Selected.Value),
0
)
),
IsBlank(
DateValue2.SelectedDate + Time(
Value(HourValue2.Selected.Value),
Value(MinuteValue2.Selected.Value),
0
)
)
),
Set(
IsEndDateValid,
true
),
DateDiff(
DateValue2.SelectedDate + Time(
Value(HourValue2.Selected.Value),
Value(MinuteValue2.Selected.Value),
0
),
DateValue3.SelectedDate + Time(
Value(HourValue3.Selected.Value),
Value(MinuteValue3.Selected.Value),
0
),
Minutes
) > 0,
Set(
IsEndDateValid,
true
),
Set(
IsEndDateValid,
false
)
)

And on the submit button-

If(IsEndDateValid,SubmitForm(Form1))

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GordoPwrApp 91 on at

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Hi @v-qiaqi-msft ,

I have changed the display mode of the submit button and it is working with a variable i created - viewmode1, however is there a way to also have the submit button enabled if the field is blank?

Something like-
If(Value(DataCardValue17_3.Text)>Value(DataCardValue26_3.Text),Set(viewmode1,true)); If(Value(DataCardValue17_3.Text)<Value(DataCardValue26_3.Text),Set(viewmode1,false)); If(IsBlank(DisplayMode.Edit)

Thanks

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi @GordoPwrApp，

Which field is blank? Both of DataCardValue17_3 and DataCardValue26_3?

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GordoPwrApp 91 on at

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@v-qiaqi-msft just DataCardValue26_3 - which is the end odometer.

So a user should be able to create a record with a blank end odometer or if they do enter a value in the end odometer, it must be higher than DataCardValue17_3 (start odometer), otherwise they can't submit

Thanks

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi @GordoPwrApp,

So if the DataCardValue26_3 is blank or DataCardValue26_3 is higher than DataCardValue17_3, the submit button should be enable, right?

Modify your formula as below:

If(Value(DataCardValue17_3.Text)>Value(DataCardValue26_3.Text), Set(viewmode1,true), Value(DataCardValue17_3.Text<Value(DataCardValue26_3.Text)||IsBlank(DataCardValue26_3.Text), Set(viewmode1,false) )

Or you could directly set the DisplayMode of the submit button as below:

If(Value(DataCardValue17_3.Text)>Value(DataCardValue26_3.Text), Disabled, Value(DataCardValue17_3.Text<Value(DataCardValue26_3.Text)||IsBlank(DataCardValue26_3.Text), Edit )

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GordoPwrApp 91 on at

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@v-qiaqi-msft Yep thats correct. I've changed the DisplayMode of the submit button, however its still not enabling when the field is blank.

DisplayMode of Submit Button-
If(Value(DataCardValue17_3.Text)>Value(DataCardValue26_3.Text),Disabled,Value(DataCardValue17_3.Text)<Value(DataCardValue26_3.Text)||IsBlank(DataCardValue26_3.Text),DisplayMode.Edit)

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi @GordoPwrApp,

Modify as below:

If( Value(DataCardValue17_3.Text) > Value(DataCardValue26_3.Text) &&!IsBlank(DataCardValue26_3.Text), Disabled, Value(DataCardValue17_3.Text) < Value(DataCardValue26_3.Text) , DisplayMode.Edit )

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GordoPwrApp 91 on at

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@v-qiaqi-msft worked perfectly, Thanks for your help!

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GordoPwrApp 91 on at

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@v-qiaqi-msft one more for you if you can please-

How would i set a global variable so that I can display an Icon on another screen when a certain field is empty in a gallery. Then when the field gets completed, the icon disappears.

Eg. a user creates a record and fills out the Start Odometer but not the End Odometer. On the home screen of the app, the user is reminded they have an incomplete entry as a icon is displayed.

I have managed to get an icon visible by using 'If(IsBlank(Label21_1), true, false)' in the visible properties of the icon and where Label21_1 is the end odo field in my gallery, however the icon does not show straight away, until I hard close and re-open the app, and still then its a bit hit and miss.

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