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Seanan
Regular Visitor

Assign each new item in a galley a unique variable

Hi guys, I am attempting to create a shopping cart, however I am trying to make it a little more advanced.

 

n0tOm6nGFc.png

This is an image of the shopping cart screen. Currently when I add a new item to the shopping list my + and - buttons are altering all of the items quantities within the shopping cart because the variable is the same. I was wondering if it would be possible to make it so that every time a new item is added to the gallery it assigns the variable to a unique variable. The example:

UpdateContext({quantity:TextInput4 +1})

This is the code inside of the + and - button (With the subtract being -1 instead of +1), then I call that variable into the textbox. Is it possible to create a loop or something similar that says for each item in the gallery assign the quantity variable to quantity1, quantity2 etc.

 

I realise that it would be easier to just remove the + and - buttons and just allow the user to enter the value but I would like to explore this option if it is possible.

 

Thanks in advance guys!

 

2 ACCEPTED SOLUTIONS

Accepted Solutions
RandyHayes
Super User
Super User

@Seanan 

So then when you create that collection, add a new column to it called Qty - default of 0

Then, your label (I believe that is a label you have in the picture) in the Gallery should have a text property of : ThisItem.Qty

Your Plus icon OnSelect : Update(ColProductOrder, ThisItem, {Qty: ThisItem.Qty + 1})

And your minus icon:  Update(ColProductOrder, ThisItem, {Qty: ThisItem.Qty - 1})

 

As a bonus, you might set your minus Icon display mode property to: 

   If(ThisItem.Qty<1, Disabled, Edit)

 

 

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View solution in original post

I may be doing something wrong but I seem to be running into an error that says: "The Qty column inside of your data source expects a record column and not a number".

 

The code to create my collection is:

Collect(ColProductOrder,{Name:ThisItem.Title,Price:ThisItem.Price,Brand:ThisItem.Brand,Colour:ThisItem.Colour,Size:ThisItem.Size,Qty:ThisItem})

The code in the +/- button is:

Update(ColProductOrder, ThisItem, {Qty:ThisItem.Qty + 1})

The collection is used to pull specific columns of data from my SharePoint List.

View solution in original post

9 REPLIES 9
RandyHayes
Super User
Super User

@Seanan 

You will need to skip the variable in this scenario and have an additional column in your gallery Items table.

What is your current Items property for the gallery?

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Hi Randy, thank you for getting back so quickly. In the Items property for my gallery I am calling a collection: ColProductOrder. 

RandyHayes
Super User
Super User

@Seanan 

So then when you create that collection, add a new column to it called Qty - default of 0

Then, your label (I believe that is a label you have in the picture) in the Gallery should have a text property of : ThisItem.Qty

Your Plus icon OnSelect : Update(ColProductOrder, ThisItem, {Qty: ThisItem.Qty + 1})

And your minus icon:  Update(ColProductOrder, ThisItem, {Qty: ThisItem.Qty - 1})

 

As a bonus, you might set your minus Icon display mode property to: 

   If(ThisItem.Qty<1, Disabled, Edit)

 

 

_____________________________________________________________________________________
Digging it? - Click on the Thumbs Up below. Solved your problem? - Click on Accept as Solution below. Others seeking the same answers will be happy you did.
NOTE: My normal response times will be Mon to Fri from 1 PM to 10 PM UTC (and lots of other times too!)
Check out my PowerApps Videos too! And, follow me on Twitter @RandyHayes

Really want to show your appreciation? Buy Me A Cup Of Coffee!

I may be doing something wrong but I seem to be running into an error that says: "The Qty column inside of your data source expects a record column and not a number".

 

The code to create my collection is:

Collect(ColProductOrder,{Name:ThisItem.Title,Price:ThisItem.Price,Brand:ThisItem.Brand,Colour:ThisItem.Colour,Size:ThisItem.Size,Qty:ThisItem})

The code in the +/- button is:

Update(ColProductOrder, ThisItem, {Qty:ThisItem.Qty + 1})

The collection is used to pull specific columns of data from my SharePoint List.

RandyHayes
Super User
Super User

@Seanan 

In that first formula, you are assigning the full record to a numeric column. 

That formula is not clear as you are referring to ThisItem in all of the columns to add a record to a collection.  But wouldn't the row you are on in the gallery already have that row in it?  Why are you creating a new row in the collection there?

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NOTE: My normal response times will be Mon to Fri from 1 PM to 10 PM UTC (and lots of other times too!)
Check out my PowerApps Videos too! And, follow me on Twitter @RandyHayes

Really want to show your appreciation? Buy Me A Cup Of Coffee!

msedge_ZjVbIzM7WY.png

This is my shopping page (Apologies for no images to make it look nicer). Basically When I select an Image you get a popup (Using updatecontext) to make a button appear and some information that allows you to add that item to the cart. So in order to take the selected item and add it to the cart I created a new collection that will then pull only certain columns that I need to display on my cart screen. I apologise if my code is not the greatest or a little confusing as I am still trying to get to grips with using PowerApps. 

Hi @Seanan ,

 

The logic from @RandyHayes is all good. I'm here to help incase he is too busy to get back to this thread in time.

 

I assume the default quantity of items added to the shopping cart will always be set to 1, then the collection creating formula should be as follows:

Collect(ColProductOrder,{Name:ThisItem.Title,Price:ThisItem.Price,Brand:ThisItem.Brand,Colour:ThisItem.Colour,Size:ThisItem.Size,Qty: 1})

 

The Qty column should include the default value you want in the shopping cart. Other formulas will exactly like in @RandyHayes 's reply.

 

Hope this helps.

 

Best regards,

Community Support Team _ Jeffer Ni
If this post helps, then please consider Accept it as the solution to help the other members find it.

Community Support Team _ Jeffer Ni

If this post helps, then please consider Accept it as the solution to help the other members find it.

Seanan
Regular Visitor

Hi @v-jefferni,

 

I apologise for not getting back to you sooner as I have been away.

 

You solution worked almost perfect and the plus and minus buttons are now working independently. However, it seems that when I click on the plus button it now removed my "title" and "brand" labels. An example is below.

 

msedge_86klUKwT7B.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The code I have in my title is 

ThisItem.Name & " " & ThisItem.Colour.Value

And for the Brand it is:

ThisItem.Brand.Value

Is there any obvious mistake I have made? I copied in the collection creating formula you suggested and also used the formula Randy mentioned for the +/- buttons.

I have managed to fix the issue now. I realised I needed to call all of the variables into the Update() formula and that seemed to fix it.

 

Thank you once again for your help guys.

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