Default value disappear after close the app and then open it again

[ChristoNindyo]

Hello. 

I want how to keep the default value in the form of Power. I already manage to do this (picture below)

Sum all of the price = Unit Cost 

10000 + 2000 = 12000

Then I close the app then open it again. The value is disappear.

[Prabhakar_S]

Hi @ChristoNindyo ,

Please make sure the default value is preserved even after closing and reopening the app, you can use variables.

• To achieve this, Create a variable to store the default value. You can do this using the `Set` function when the app starts or when a specific screen loads.

For example:

Set(DefaultUnitCost, 10000)

• Set the default value of your control to the variable `DefaultUnitCost`. You can do this in the property settings of the control.

For example:

Default = DefaultUnitCost

• when the app starts or the screen loads, it will set the `DefaultUnitCost` variable to the desired value, which is used as the default value for your control.

By using this method, your default value will be preserved even after closing and reopening the app. Also, make sure to include the `Set` function in the appropriate place within your app, such as in the OnStart property of the app or the OnVisible property of a specific screen, depending on when you want to set the default value.

Thanks!!!

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[ChristoNindyo]

@Prabhakar_S 

Can we change this

Set(DefaultUnitCost, 10000)

 to

Set(DefaultUnitCost, Sum(Gallery1.AllItems, Label4))

I try this one, but did not work

[Prabhakar_S]

Hi @ChristoNindyo ,

The formula you want to change will sum the values in your gallery's items, but it seems like you want to use the result from a specific label, which is `Label4` I believe.

If you want to set the variable `DefaultUnitCost` to the value in `Label4`, you can do it directly like this:

Set(DefaultUnitCost, Label4.Text)

This formula will set the `DefaultUnitCost` variable to the text value of `Label4`. Make sure that `Label4` contains the value you want to use as the default unit cost.

If you're trying to sum the values within the gallery's items and then use the result as the default unit cost, you can use a formula like this:

Set(DefaultUnitCost, Sum(Gallery1.AllItems, Label4.Text))

This formula calculates the sum of the values in your gallery's items, assuming that the text values in `Label4` can be converted to numbers for the sum. If you have any issues with this, please double-check that `Label4` contains valid numeric values in your gallery items.

Thanks!!!

Please consider marking my response as the accepted solution if it successfully resolves your concern. If you found the information beneficial in other aspects, kindly express your appreciation by giving it a thumbs-up.

[ChristoNindyo]

@Prabhakar_S 

I think the label 4 is already number because I can SUM them before. Is that okay that it's already numbers ? 

The thing is I can get the number when I directly input 12000, but when I did the sum calculation from the gallery that number is dissapear.