Count elements in gallery / full gallery height in canvas

[Anonymous]

Hello,

I've created a gallery inside a canvas element. Each gallery element contains several elements to display. I want to calculate the sum of the height of all gallery items to set the number for the Height-Attribute of the gallery.

The gallery should be shown with full height and I want to use this inside a gallery element to add other items below the gallery.

Thank you

[Mike8 · Accepted solution]

Hello andrewichert,

You can add a label in your MyGallery. Let's name it LabelRecordSum.

Please set:
LabelRecordSum.Text= Label1.Height+Label2.Height+Label3.Height+Label4.Height
This label will show the sum of the labels' heights 

Now outside of your gallery create a label ---> LabelSum
LabelSum.Text=Sum(MyGallery.AllItems,LabelRecordSum.Text)

Now you can set:
LabelRecordSum.Visible=false and it's hidden from the user but still does what you need.

I hope it's good enough for you.

[Anonymous]

Hi @Mike8,

thank you very much. This mostly achives my goals. Have to round up a little bit and add some more values. But your solution is what was needed.

Tanky you

[Shanescows]

Hey @Anonymous glad you got it working. Just out of curiosity did you try the flexible height gallery control? I didn't know about it until recently but I wonder if it does what you want on its own?

[Anonymous]

Hi @Shanescows, you mean "Blank flexible height"? Yes I'm aware of this and always using this, as it gives me the most control about my galleries. But it doesn't work as expected. Sometimes everything is fine but in most cases I've been using a nested gallery or every element has an autoheight attribute turned on (like labels) and this will broke most of the galleries.

I don't want to rely on this feature and use my own calculations to show the galleries properly.

[Shanescows]

Cool and thanks for the feedback. I just had never used it and thought I would get your insight on it. Thanks for sharing. 

[strahlemann42]

Thank you so much for this solution. I have been working my butt on getting the galleries to not scroll within a scrolling canvas... saves my day!