Image collection based on IF statement

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Posted on by AOZ

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Hello,

I am a bit new to Powerapps and I have 2 questions regarding collections to store images.

I have a checklist and i need only to store the image IF the checkbox is activated.

Currently i am using the camera control and storing the image in the image control.

Collect(ColImage,
{
File: DataCardValue36.Image, Name: TextInput3.Text,
File2: DataCardValue36_1.Image, Name2: TextInput3_1.Text,
File3: DataCardValue36_2.Image, Name3: TextInput3_2.Text,
File4: DataCardValue36_3.Image, Name4: TextInput3_3.Text,
File5: DataCardValue36_4.Image, Name5: TextInput3_4.Text,
File6: DataCardValue36_5.Image, Name6: TextInput3_5.Text,
File7: DataCardValue36_6.Image, Name7: TextInput3_6.Text,
File8: DataCardValue36_7.Image, Name8: TextInput3_7.Text,
File9: DataCardValue36_8.Image, Name9: TextInput3_8.Text,
File10: DataCardValue36_9.Image, Name10: TextInput3_9.Text
}
);

First question is how to include the IF inside the above syntax so as to store the image ONLY when the checkbox is activated.

My second question is regarding the image being stored - the last image always remains - how do we "initialise" this image control when the form is loaded for example?

Thanks,

Arshad

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Building Power Apps

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WarrenBelz 156,425 Most Valuable Professional on at

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Hi @AOZ ,

First question - as below

Collect( ColImage, If( CheckBoxNo1.Value, {File: DataCardValue36.Image, Name: TextInput3.Text} ), If( CheckBoxNo2.Value, {File: DataCardValue36_1.Image, Name: TextInput3_1.Text} ), . . . . . );

Assuming you clear the collection, nothing should remain - what do you men by initialise?

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AOZ 110 on at

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Dear @WarrenBelz
Thanks for the response.
I have amended my code as follows, but i note that even if the checkbox is not activated (value is true) the previous photo taken is still stored in the collection.
This is why i wanted to "initialise" the image controls box when the form is loaded - by initialise, i mean erase all photos which are found in the boxes previously taken because they remain.

Collect(
ColImage,
If(
DataCardValue42.Value=false,
{File: DataCardValue36.Image, Name: TextInput3.Text}
),
If(
DataCardValue43.Value=false,
{File2: DataCardValue36_1.Image, Name2: TextInput3_1.Text}
)
);

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WarrenBelz 156,425 Most Valuable Professional on at

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Hi @AOZ ,

Clearing the collection

Clear(colImage)

will remove anything in it. You could also reset all the toggles

Reset(Checkbox1); Reset(Checkbox2); . . . . .

If you want to see images where they (line up), you would have to do this

Collect( ColImage, If( CheckBoxNo1.Value, {File: DataCardValue36.Image, Name: TextInput3.Text}, {File: Blank(), Name: Blank()} ), If( CheckBoxNo2.Value, {File: DataCardValue36_1.Image, Name: TextInput3_1.Text}, {File: Blank(), Name: Blank()} ), . . . . . );

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AOZ 110 on at

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Dear @WarrenBelz
Thanks again.
In fact i am looking for a way to clear the below controls (outside the collection) when the form is loaded.
Something like when the form loads, DatacardValue36.image = Blank()
This is however not working...all images previously taken remain in the image control.

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WarrenBelz 156,425 Most Valuable Professional on at

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@AOZ ,

The problem you have is that the controls are based on the collection and resetting the control will simply put the collection image back into it.

You might try a Variable

UpdateContext({varBlank:true})

then the Image could be

If( varBlank, Blank(), Collection.Image //(whatever it is now) )

You would then have to set varBlank to false when you wanted to see the images again. I am not sure why you simply do not clear the collection.

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