Select the first item in the gallery by default

[Ramonzwiers]

I am building a inspection checklist for a factory. The inspection starts at one side of the building and ends on the other side, on this route there are 'inspectionpoints' with different things to inspect ('ToCheck'). Every 'InspectionPoint' has an 'InspectionPointNumber' and a 'InspectionPointSubject'. Also, with every check it is optional to add a commend or a picture.

My Question:

I inserted a textlabel above the gallery, which has to show the right 'InspectionPointSubject'. It works, but when the inspection point number changes, the textlabel is empty until a item in the list is selected. I tried different things but i can't figure it out. It would be great if the gallery selected it's first item by default, also after the items change.

  

The coloms of the sharepointlist are:

InspectionPointNumber: logical unique number per inspectionpoint

InspectionPointSubject: discription of the inspectionpoint
CheckNumber: Logical number for each item to check for each inspection point. 
ToCheck: Things to check, at least one and max. 12 for each inspectionpoint
Picture: Optional to add a picture for each item to check

Comments: Optional to add a comment for each item to check

Checked: True or false, everything 'ToCheck' has to be checked before the next Inspectionpoint can be started. reat if the gallery selected it's first item by default, also after the items change.

[moritz0815]

Hello,

How do you change the inspection point number ?

[the_dude]

Hi Ramon,

I'm not exactly understanding the problem / exactly how the app is operated.

However, would it help you if you put a 2nd label on the exact same place which 'visible' property you manage with  IsBlank(theOriginalLabel.Text)  ?

This way, the 2nd label will only be visible when the 1st label is not showing any text. 

Kind Regards

[Ramonzwiers]

With the button 'next inspectionpoint', which has the formula as on the picture below. But to answer your question, the formula on the onselect property: Set(varCount,varCount+1).

The formula of the gallery is: 

Sort(Filter('Checklist inspection monthly',InspectionPointNumber = Text(varCount, "00#")), CheckNumber, SortOrder.Ascending)

 

[Ramonzwiers]

Hello,

I think my answer on moritz0815 will help to understand. The textlabel will show text when you select an item by hand. But i would like it to automatically select the first item in the gallery. 

 

Here the textbox is empty

 

Here, after the first item is selected, it shows the right inspection point subject

[moritz0815]

Set your Default property to : First(Self.AllItems)

[Ramonzwiers]

Yes that works, but starts another problem. 

Everytime another item is selected, the gallery goes back to the first item. This happens when a when a checkbox is checked, picture or comment is added too.

[moritz0815]

Maybe the following idea works: You set a variable when navigating the page as I wrote above. When selecting the gallery element, you set this variable to the one you just selected. The default property is then set to the defined variable.

[Ramonzwiers]

I am not that experienced with power apps yet, i am sorry. Can you make an example of a right formula?

[moritz0815]

On the page, where your gallery sits you set the OnVisible: 

Set(varSelctedItem,First(Gallery1.AllItems))

In your Gallery (Gallery1 in my case) you set the Default:

varSelectedItem

and the Select:

set(varSelectedItem,ThisItem)