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kalakosha
Helper I
Helper I

Filter gallery based on SP list with multi-select choise column

Hi everyone!

I hope someone can help me.

I have the following scenario: SharePoint list (MedArticles) with next columns:

Title --> text

Drugs --> choise (can select only one value)

Nosology --> choise (multi-select. Can select from 1 up to 23 values)

Indications --> choise (multi-select. Can select from 1 up to 3 values)

Author_publ --> text

PublicationsYear --> text

The goal is to display articles in the gallery using filters and search.

kalakosha_1-1689943518131.png

I organized the search by Author_publ and filter by drug.
In this case Items property for galArticles looks like this:

 

SortByColumns(
    Filter(
        Filter(
            MedArticlesEng,
            (Drugs.Value = cmbPreparatFilter.Selected.Value || IsBlank(cmbPreparatFilter.Selected.Value))
        ),
        txtSearch.Text in Title || txtSearch.Text in Author_publ
    ),
    "PublicationsYear"
)

 

And this works fine.

Currently, the problem is that I cannot create a filter by Nosology and Indications.

I created glrNosology with Items property 

 

Choices([@MedArticlesEng].Nosology)

 

For chbNosology control object for OnCheck property I set folowing value:

 

Collect(colNosologyFilter,ThisItem)

 

 and for OnUncheck:

 

Remove(colNosologyFilter,ThisItem)

 

When testing the collection, I can see that items are added to the collection when selected and removed from the collection when the item is clicked again.

As example 

kalakosha_2-1689944486338.png

I don't know what value I need to set for the Default property for chbNosology, how to get the value from this collection colNosologyFilter now and how to combine these filters.

I understand that it is possible to create a filter for Indications according to the same principle.

I would appreciate any advice and help.

1 ACCEPTED SOLUTION

Accepted Solutions

Hi @kalakosha - please consider the revision below. Note I am not particularly proud of the complexity of this expression, and I cannot speak of its performance, but it should achieve what you need:

 

 

Filter(//exclude blank rows from appearing in the Gallery for any selected choice which has not yet been entered in the data source
    ForAll(
        Distinct(//exclude duplicates on many-to-many filters
            With(
                {
                    _items: SortByColumns(
                        Filter(
                            MedArticlesEng,
                            Len(cmbPreparatFilter.Selected.Value) = 0 || Choice.Value = cmbPreparatFilter.Selected.Value,
                            Len(txtSearch.Text) = 0 || txtSearch.Text in Title || txtSearch.Text in Author_publ
                        ),
                        "Title"
                    )
                },
                With(
                    {
                        _allfilters: Ungroup(
                            ForAll(
                                varSelectedNosology As selectedNosology,
                                Filter(
                                    Ungroup(
                                        ForAll(
                                            varSelectedIndications As selectedIndications,
                                            Filter(
                                                _items,
                                                selectedIndications.Value in Indications.Value
                                            )
                                        ),
                                        "Value"
                                    ),
                                    selectedNosology.Value in Nosology.Value
                                )
                            ),
                            "Value"
                        )
                    },
                    With(
                        {
                            _Nosologyfilter: Ungroup(
                                ForAll(
                                    varSelectedNosology As selectedNosology,
                                    Filter(
                                        _items,
                                        selectedNosology.Value in Nosology.Value
                                    )
                                ),
                                "Value"
                            )
                        },
                        With(
                            {
                                _Indicationsfilter: Ungroup(
                                    ForAll(
                                        varSelectedIndications As selectedIndications,
                                        Filter(
                                            _items,
                                            selectedIndications.Value in Indications.Value
                                        )
                                    ),
                                    "Value"
                                )
                            },
                            If(
                                CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) > 0,
                                _allfilters,
                                If(//we use isBlank to accomodate for a blank variable on app start
                                    CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) = 0 || CountRows(varSelectedNosology) > 0 && IsBlank(varSelectedIndications),
                                    _Nosologyfilter,
                                    If(
                                        CountRows(varSelectedNosology) = 0 && CountRows(varSelectedIndications) > 0 || IsBlank(varSelectedNosology) && CountRows(varSelectedIndications) > 0,
                                        _Indicationsfilter,
                                        _items
                                    )
                                )
                            )
                        )
                    )
                )
            ),
            ThisRecord
        ),
        Value
    ),
    Len(ID) > 0
)

 

 

------------------------------------------------------------------------------------------------------------------------------

 

If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

View solution in original post

9 REPLIES 9
Amik
Super User
Super User

@kalakosha - I think the below is what you're trying to do:

 

On both the OnCheck and UnCheck properties of the Gallery Checkbox for Nosology, enter:

 

Set(
    varSelectedNosology,
    ShowColumns (
        Filter(
            'Your Nosology Checkbox Gallery'.AllItems,
            Nosology.Value
        ),
        "Value"
    )
)

 

 

For the Gallery Checkbox for Indications, use the same logic above:

Set(
    varSelectedIndications,
    ShowColumns (
        Filter(
            'Your Indications Checkbox Gallery'.AllItems,
            Indications.Value
        ),
        "Value"
    )
)

 

In the Items property of the Gallery you're trying to Filter, use:

 

With(
    {
        _items: SortByColumns(
            Filter(
                MedArticlesEng,
                Len(ccmbPreparatFilter.Selected.Value) = 0 || Drugs.Value = cmbPreparatFilter.Selected.Value,
                Len(txtSearch.Text) = 0 || txtSearch.Text in Title || txtSearch.Text in Author_publ
            ),
            "PublicationsYear"
        )
    },
    With(
        {
            _allfilters: Ungroup(
                ForAll(
                    varSelectedNosology As selectedNosology,
                    Filter(
                        Ungroup(
                            ForAll(
                                varSelectedIndications As selectedIndications,
                                Filter(
                                    _items,
                                    selectedIndications.Value in Indications.Value
                                )
                            ),
                            "Value"
                        ),
                        selectedNosology.Value in Nosology.Value
                    )
                ),
                "Value"
            )
        },
        With(
            {
                _Nosologyfilter: Ungroup(
                    ForAll(
                        varSelectedNosology As selectedNosology,
                        Filter(
                            _items,
                            selectedNosology.Value in Nosology.Value
                        )
                    ),
                    "Value"
                )
            },
            With(
                {
                    _Indicationsfilter: Ungroup(
                        ForAll(
                            varSelectedIndications As selectedIndications,
                            Filter(
                                _items,
                                selectedIndications.Value in Indications.Value
                            )
                        ),
                        "Value"
                    )
                },
                If(
                    CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) > 0,
                    _allfilters,
                    If(
                        CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) = 0,
                        _Nosologyfilter,
                        If(
                            CountRows(varSelectedNosology) = 0 && CountRows(varSelectedIndications) > 0,
                            _Indicationsfilter,
                            _items
                        )
                    )
                )
            )
        )
    )
)

 

 

Note the above expression is not delegable and trying to run this beyond the delegable limit will yield undesirable results. 

 

For more information on many-to-many filters, check this blog post:

 

https://www.practicalpowerapps.com/data/many-to-many-filters/

 

------------------------------------------------------------------------------------------------------------------------------

 

If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

Hello Amik!

Thank you for taking the time and opportunity to help me.

I get an error when I try to set the value for OnCheck and UnCheck properties of the Gallery Checkbox for Nosology and Indications.

I can't choose a Nosology.Value or Indications.Value. Instead, I can choose ThisItem.Value or ThisRecord or Value.

I tried these three values in turn without changing at the same time Items property of the Gallery. But did not get the result. Filters do not work.

Amik
Super User
Super User

@kalakosha - my fault. I did not make clear that "Nosology" and "Indications" are the names of the Checkbox controls in the Gallery. Replace "Nosology" with whatever the name is for the Checkbox control in the Nosology Gallery and perform the action for the Indications Gallery.

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

@Amik - it is not your fault, it is more likely that I do not fully understand what you want to tell me 🙂

This is my gallery for Nosologys

kalakosha_0-1690280766189.png

 

kalakosha_1-1690280802000.png

 

For chbNosology control for OnCheck and OnUncheck properties I set

Set(
    varSelectedNosology,
    ShowColumns (
        Filter(
            glrNosology.AllItems,chbNosology.Value            
        ),
        "Value"
    )
)

And this is my gallery for Indications:

kalakosha_2-1690281376391.pngkalakosha_3-1690281393046.png

 

And for chbIndications control for OnCheck and OnUncheck properties I set

Set(
    varSelectedIndications,
    ShowColumns (
        Filter(
            glrIndications.AllItems,chbIndications.Value            
        ),
        "Value"
    )
)

And now, for Items property my Articles gallery I'm pasting the filter code you gave me at the beginning.

Here's an example of what a SharePoint list looks like:

kalakosha_4-1690282037407.png

And here is an example of what the Articles gallery looks like in the application. Currently, no filters have been applied: not by drugs, not by nosologies, not by indications.
In other words - all items of the SharePoint list are displayed in the gallery and this is correct.

kalakosha_5-1690282432822.png

After these changes that I made, only the filter by drug and the search by author are currently working.

But the filters for nosologies and indications do not work. I check the nosologies, but the gallery is not filtered.

As an example, I check only noso_4 checkbo. In this case I should only see 1 item (Article_04). But in the gallery I continue to see all items. 

I must have messed something up again.

Thank you once again for finding time for me.

 

Amik
Super User
Super User

Hi @kalakosha ,

 

Could you replace this line:

 

CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) = 0,

 

 

With:

 

CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) = 0 || CountRows(varSelectedNosology) > 0 && IsBlank(varSelectedIndications),

 

 

And replace this line:

 

CountRows(varSelectedNosology) = 0 && CountRows(varSelectedIndications) > 0,

 

 

With:

 

CountRows(varSelectedNosology) = 0 && CountRows(varSelectedIndications) > 0 || IsBlank(varSelectedNosology) && CountRows(varSelectedIndications) > 0,

 

 

------------------------------------------------------------------------------------------------------------------------------

 

If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

Hi @Amik !

You are a mage and a wizard! 🙂
Filters by nosologies and indications really work.
The only thing is, I'm trying to remove duplicates in the gallery after filtering - it doesn't work yet.
For example, when I try to filter the list by indication (indic_01 and indic_03),

kalakosha_1-1690379026438.png

then according to the SharePoint list

kalakosha_0-1690378963536.png

 

, the gallery should display 3 records. And I have one record duplicated (I understand why: it contains both indic_01 and indic_03).

kalakosha_2-1690379090432.png

I want to get rid of that.
The same behavior is observed with nosologies.

Can you please tell me which way to look?

Hi @kalakosha - please consider the revision below. Note I am not particularly proud of the complexity of this expression, and I cannot speak of its performance, but it should achieve what you need:

 

 

Filter(//exclude blank rows from appearing in the Gallery for any selected choice which has not yet been entered in the data source
    ForAll(
        Distinct(//exclude duplicates on many-to-many filters
            With(
                {
                    _items: SortByColumns(
                        Filter(
                            MedArticlesEng,
                            Len(cmbPreparatFilter.Selected.Value) = 0 || Choice.Value = cmbPreparatFilter.Selected.Value,
                            Len(txtSearch.Text) = 0 || txtSearch.Text in Title || txtSearch.Text in Author_publ
                        ),
                        "Title"
                    )
                },
                With(
                    {
                        _allfilters: Ungroup(
                            ForAll(
                                varSelectedNosology As selectedNosology,
                                Filter(
                                    Ungroup(
                                        ForAll(
                                            varSelectedIndications As selectedIndications,
                                            Filter(
                                                _items,
                                                selectedIndications.Value in Indications.Value
                                            )
                                        ),
                                        "Value"
                                    ),
                                    selectedNosology.Value in Nosology.Value
                                )
                            ),
                            "Value"
                        )
                    },
                    With(
                        {
                            _Nosologyfilter: Ungroup(
                                ForAll(
                                    varSelectedNosology As selectedNosology,
                                    Filter(
                                        _items,
                                        selectedNosology.Value in Nosology.Value
                                    )
                                ),
                                "Value"
                            )
                        },
                        With(
                            {
                                _Indicationsfilter: Ungroup(
                                    ForAll(
                                        varSelectedIndications As selectedIndications,
                                        Filter(
                                            _items,
                                            selectedIndications.Value in Indications.Value
                                        )
                                    ),
                                    "Value"
                                )
                            },
                            If(
                                CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) > 0,
                                _allfilters,
                                If(//we use isBlank to accomodate for a blank variable on app start
                                    CountRows(varSelectedNosology) > 0 && CountRows(varSelectedIndications) = 0 || CountRows(varSelectedNosology) > 0 && IsBlank(varSelectedIndications),
                                    _Nosologyfilter,
                                    If(
                                        CountRows(varSelectedNosology) = 0 && CountRows(varSelectedIndications) > 0 || IsBlank(varSelectedNosology) && CountRows(varSelectedIndications) > 0,
                                        _Indicationsfilter,
                                        _items
                                    )
                                )
                            )
                        )
                    )
                )
            ),
            ThisRecord
        ),
        Value
    ),
    Len(ID) > 0
)

 

 

------------------------------------------------------------------------------------------------------------------------------

 

If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

Hi @Amik ,

I take my hat off to you.
It's grand.
Thanks for the comments on the code.

Amik
Super User
Super User

@kalakosha you're welcome. Note I have edited the original solution with a slightly cleaned up expression.

 


------------------------------------------------------------------------------------------------------------------------------


If I have answered your question, please mark your post as Solved. Remember, you can accept more than one post as a solution.

If you like my response, please give it a Thumbs Up.

Imran-Ami Khan

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