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mflorido
Frequent Visitor

Lookup function in Powerapps

Please help me to get the correct lookup value formula in PowerApps, my requirements are as follows.

 

I want to search for a field in an Excel metric according to the activity selected in drop-down fields. In these dropdowns you must select the value or name of the row and also the column and the result must be the matching field in the row and column matrix.
I have the problem taking the text value from the dropdown in the column

Example:

I have this:

LookUp(Matrix; Row=List_Afectacion.SelectedText.Value).'TEXT_IN_Column'

It works correctly but I need to choose the text from the column of a dropdown or another type of entry

 

I want this:

LookUp(Matrix; Row=List_Row.SelectedText.Value).List_column.SelectedText.Value

 

Other wide I try but don't work:

LookUp(Matrix; Row=List_Row.SelectedText.Value;List_Colum.SelectedText.Value)

 

This returns me the same column name value (List_Colum.SelectedText.Value), not the field in which it is intercepted

 

mflorido_0-1707293730279.png

 

If I select the value of List_Row_2 from the dropdown List_Row and select the value of List_Column_3 from the dropdown List_Colum, it should return the value "8"

 

Thanks

 

1 ACCEPTED SOLUTION

Accepted Solutions

Hi @mflorido you dint need to wrap the textep.text in isNumeric() it should just be:

 

 

LookUp(Matrix,Row = Value(TexteP_Al.Text) && Col = Value(TexteP_Ac.Text),ThisRecord).Value

 

Change: TexteP_Al.Text TexteP_Ac.Text to your text inputs

 

Is numeric fucntion returns a Boolean (true/ false) value which is the reason that this isn’t changing for you!

 

I would also suggest in the future try hard coding in values rather that using text inputs and see if you get the expected result then you can identify which part of the formula isn’t working correctly!

 

Please can you accept my last reply as the solution to this post this will help other with the same problem find the answer to this query!

 

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item. Remember, you can accept more than one post as a solution.

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Thanks
Andrew

 

View solution in original post

10 REPLIES 10

Hi @mflorido 


So in my example I have a collection called matrix: 

AndrewR1_4-1707296117263.png

ClearCollect(Matrix,{Row:1,Col:1,Value:10},{Row:1,Col:2,Value:8},{Row:1,Col:3,Value:8})

 

Then i have a label with the following as the text property: 

LookUp(Matrix,Row = 1 && Col = 1,ThisRecord).Value

 

 This will return me the value of 10: 

AndrewR1_5-1707296117265.png

Then all you need to do it but in the inputs rather than the hard coded 1's 

 

AndrewR1_6-1707296117267.png

 

 

 

AndrewR1_7-1707296117268.png

 

You will not need to wrap it in value as I am using a number not a text input

 

Hope this helps

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item. Remember, you can accept more than one post as a solution.

 

If the content was useful in other ways, please consider giving it Thumbs Up👍

 

Thanks 

Andrew

v-jefferni
Community Support
Community Support

Hi @mflorido ,

 

You will have to set as many column names in a Switch function as the number of columns in the matrix table.

Switch(
    List_Colum.SelectedText.Value,
    "List_Column_1",
    LookUp(Matrix; Row=List_Row.SelectedText.Value).List_Column_1,
    "List_Column_2",
    LookUp(Matrix; Row=List_Row.SelectedText.Value).List_Column_2,
    "List_Column_3",
    LookUp(Matrix; Row=List_Row.SelectedText.Value).List_Column_3,
    "List_Column_4",
    LookUp(Matrix; Row=List_Row.SelectedText.Value).List_Column_4,
    ....
)

 

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.

Hello.
Thank you very much for the answer...

I get an error in the formula... I think the LookUp function does not recognize the row and Col attributes. It does not work for me.

mflorido_0-1707392656308.png

 

Hi @mfloridothis will be because in my example I used them in my collection you will need to change them to the same names to what is in your collection. 

Can you send me the code that you have for your collection? and I will be able to adapt the code for you? 

For example: 

ClearCollect(Matrix,{YourRowName:1,YourColName:1,YourValueName:10},{YourRowName:1,YourColName:2,YourValueName:8},{Row:1,Col:3,YourValueName:8})

Etc this would build up the matrix as a colection then you can use:

LookUp(Matrix,YourRowName = Value(YourTextInput1.text) && YourColName = Value(YourTextInput2.text),ThisRecord).YourValueName

Send me over what you have for your colection and I will be able to help more

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item. Remember, you can accept more than one post as a solution.

If the content was useful in other ways, please consider giving it Thumbs Up. 👍

Thanks
Andrew

I imported the data from a table in an excel file:

mflorido_0-1707393606119.png

 

Hi @mfloridook that’s fine for a visual but I wanted to see the table structure but not a problem we can just create a new collection to hold this table for you: 

Can you on the onStart or onVisable of you Screen have this: 

ClearCollect(Matrix,{Row:1,Col:1,Value:10},{Row:1,Col:2,Value:8},{Row:1,Col:3,Value:10},{Row:1,Col:4,Value:7},{Row:1,Col:5,Value:5},{Row:1,Col:6,Value:0},{Row:2,Col:1,Value:8},{Row:2,Col:2,Value:6},{Row:2,Col:3,Value:8},{Row:2,Col:4,Value:5},{Row:2,Col:5,Value:5},{Row:2,Col:6,Value:0},{Row:3,Col:1,Value:10},{Row:3,Col:2,Value:4},{Row:3,Col:3,Value:6},{Row:3,Col:4,Value:3},{Row:3,Col:5,Value:5},{Row:3,Col:6,Value:0},{Row:4,Col:1,Value:4},{Row:4,Col:2,Value:2},{Row:4,Col:3,Value:3},{Row:4,Col:4,Value:3},{Row:4,Col:5,Value:5},{Row:4,Col:6,Value:0},{Row:5,Col:1,Value:5},{Row:5,Col:2,Value:5},{Row:5,Col:3,Value:5},{Row:5,Col:4,Value:5},{Row:5,Col:5,Value:5},{Row:5,Col:6,Value:5},{Row:6,Col:1,Value:0},{Row:6,Col:2,Value:0},{Row:6,Col:3,Value:0},{Row:6,Col:4,Value:0},{Row:6,Col:5,Value:0},{Row:6,Col:6,Value:0})

 

Then you will be able to use this: 

LookUp(Matrix,Row = Value(YourTextInput9.Text) && Col = Value(YourTextInput9_1.Text),ThisRecord).Value

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item. Remember, you can accept more than one post as a solution.

If the content was useful in other ways, please consider giving it Thumbs Up. 👍

Thanks
Andrew

Thank you very much for your help. It doesn't work at all well... I created the matrix as you told me but the result value is always 10... even if I changed the values ​​of the input text.

mflorido_0-1707404162225.png

 

Hi @mflorido you dint need to wrap the textep.text in isNumeric() it should just be:

 

 

LookUp(Matrix,Row = Value(TexteP_Al.Text) && Col = Value(TexteP_Ac.Text),ThisRecord).Value

 

Change: TexteP_Al.Text TexteP_Ac.Text to your text inputs

 

Is numeric fucntion returns a Boolean (true/ false) value which is the reason that this isn’t changing for you!

 

I would also suggest in the future try hard coding in values rather that using text inputs and see if you get the expected result then you can identify which part of the formula isn’t working correctly!

 

Please can you accept my last reply as the solution to this post this will help other with the same problem find the answer to this query!

 

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item. Remember, you can accept more than one post as a solution.

If the content was useful in other ways, please consider giving it Thumbs Up. 👍

Thanks
Andrew

 

Now it has worked! Thank you so much! One last thing, how can I do this when the user selects the value in the dropdown list without using the button?

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