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Anonymous
Not applicable

Can you filter a label you added to your gallery?

Good evening,

 

I added a label inside a gallery that calculated distance between a column inside the gallery and a user input box. I would like to filter the gallery base on that label but it's not a column...

 

How would you do it?

2 ACCEPTED SOLUTIONS

Accepted Solutions
v-bofeng-msft
Community Support
Community Support

Hi @Anonymous :

This is impossible in theory, but I have a small trick.
The point is to create an auxiliary collection,I've made a test for your reference:

1\I assume your gallery's data source is-GalleryItems

 

ClearCollect(
GalleryItems,
{ID:1},{ID:2},{ID:3},{ID:4},{ID:5})

 

2\Add a Text Input control (TextInput1)

3\Add a Gallery(Gallery3)

 

If(
    IsBlank(TextInput1.Text),
    GalleryItems,
    Filter(
        GalleryItems,
        TextInput1.Text in LookUp(
            MyCollection, /*MyCollection is my coustom collection I'll show you how to define it later*/
            ID = GalleryItems[@ID]
        ).Text
    )
)

 

4\Add a text input control(TextInput2) into Gallery3

OnChange

 

RemoveIf(
    MyCollection,
    ID = ThisItem.ID
);
Collect(
    MyCollection,
    {
        ID: ThisItem.ID,
        Text: TextInput2.Text
    }
)

 

Default 

 

LookUp(MyCollection,ID=ThisItem.ID).Text

 

17.gif

Although your requirement is to calculate the distance(I can’t test because you didn’t provide details), the principle is the same.

Best Regards,

Bof

View solution in original post

Hi @Anonymous :

The function of GalleryItems[@ID] is to eliminate ambiguity. Because GalleryItems and MyCollection both contain columns named ID. So you need to use this syntax to distinguish which table the ID used for comparison comes from.

I think this link will help you a lot:

Disambiguation operator 

Best Regards,

Bof

View solution in original post

7 REPLIES 7
mahoneypat
Solution Sage
Solution Sage

You can set the Items of your Gallery to something like this

 

Filter(AddColumns(OriginalItemsExpression, "Distance", expression to calculate distance), Distance < 100)

 

Regards,

Pat





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v-bofeng-msft
Community Support
Community Support

Hi @Anonymous :

This is impossible in theory, but I have a small trick.
The point is to create an auxiliary collection,I've made a test for your reference:

1\I assume your gallery's data source is-GalleryItems

 

ClearCollect(
GalleryItems,
{ID:1},{ID:2},{ID:3},{ID:4},{ID:5})

 

2\Add a Text Input control (TextInput1)

3\Add a Gallery(Gallery3)

 

If(
    IsBlank(TextInput1.Text),
    GalleryItems,
    Filter(
        GalleryItems,
        TextInput1.Text in LookUp(
            MyCollection, /*MyCollection is my coustom collection I'll show you how to define it later*/
            ID = GalleryItems[@ID]
        ).Text
    )
)

 

4\Add a text input control(TextInput2) into Gallery3

OnChange

 

RemoveIf(
    MyCollection,
    ID = ThisItem.ID
);
Collect(
    MyCollection,
    {
        ID: ThisItem.ID,
        Text: TextInput2.Text
    }
)

 

Default 

 

LookUp(MyCollection,ID=ThisItem.ID).Text

 

17.gif

Although your requirement is to calculate the distance(I can’t test because you didn’t provide details), the principle is the same.

Best Regards,

Bof

Anonymous
Not applicable

@v-bofeng-msft 

 

Questions... 

 

Where do you put : 

 

.

ClearCollect(
GalleryItems,
{ID:1},{ID:2},{ID:3},{ID:4},{ID:5})

And,

 

By saying gallery(gallery3) means you have a gallery inside a gallery ?

Hi @Anonymous :

Q1:

GalleryItems is my custom collection.It is my data source for testing.You should use your own data source instead of following my step 1.

Q2:

gallery3 is my own gallery for test it's not an embedded gallery.

In addition,because you only asked the question without describing the specific details of your app, I can't provide you with suggestions based on your app. I suggest you read the solution I provided to understand its principle and apply it to your own app.

Best Regards,

Bof

Anonymous
Not applicable

@v-bofeng-msft 

 

Sorry for the late response, I'm trying exactly what you wrote and it doesnt work. I tried understand what you used and I understand everything except the following : 

 

GalleryItems,
TextInput1.Text in LookUp(
MyCollection,
ID = GalleryItems[@ID]
).Text

 

The part that bugs me is ID = GalleryItems[@ID], what does it refer to ? Some sort of new variable ? Is it a column in my collection that I'm missing maybe...

 

And If I remove this, the gallery start working fine. Can you explain what this does ? And again, sorry for the late response.

Anonymous
Not applicable

Somehow I managed to get it to work, but still confuse into this formula...


ID = GalleryItems[@ID]
).Text

 

What is the .text refering too ?

Hi @Anonymous :

The function of GalleryItems[@ID] is to eliminate ambiguity. Because GalleryItems and MyCollection both contain columns named ID. So you need to use this syntax to distinguish which table the ID used for comparison comes from.

I think this link will help you a lot:

Disambiguation operator 

Best Regards,

Bof

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