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If Lookup difficulty

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Posted on by PPSA

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I'm trying to configure some buttons visibility properties around a formula, it's close but something isn't right, could do with someone advising please.

If(Value(LookUp(PurchaseOrdersUsers,Title=User().Email,Group4))>=2,"true","false")

This is working well.

I now want to change Group4 to be dynamic based on the selected item.

LookUp(PurchaseOrdersUsers,Title=User().Email,"Group"&(Gallery1.Selected.Supplier_Type))

Returns Group4 as its answer but when i copy this in place of Group4 it returns false, it should be true and visible.

If(Value(LookUp(PurchaseOrdersUsers,Title=User().Email,LookUp(PurchaseOrdersUsers,Title=User().Email,"Group"&(Gallery1.Selected.Supplier_Type))
))>=2,"true","false")

Or i though to try in place of Group4 to reference the "4" for that item in the gallery

If(Value(LookUp(PurchaseOrdersUsers,Title=User().Email,Group&Gallery1.Selected.Supplier_Type))>=2,"true","false")

this doesn't work either.

i think I'm fairly close, thanks in advance.

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Building Power Apps

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WarrenBelz 156,454 Most Valuable Professional on at

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Hi @PPSA ,
You are trying to return a numeric value with a concatenated string - I suspect you may be trying to do something like this?
Value( LookUp( PurchaseOrdersUsers, Title=User().Email && YourSupplierTypeField=Gallery1.Selected.Supplier_Type ).Group )>=2
You also do not need the If/true/false on the Visible property.

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

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v-yutliu-msft Microsoft Employee on at

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Hi @PPSA ,

Do you want to use dynamic value as field name in your lookup field?

I'm afraid it's not supported in powerapps to do this.

Please notice the syntax of Lookup function:

LookUp(table,formula,fieldname)

The third parameter fieldname should be a constant value.

"Group"&(Gallery1.Selected.Supplier_Type is variable, not constant value.

To solve your issue, I suggest you use If statement to decide the fieldname in lookup field.

For example:

If(Value(LookUp(PurchaseOrdersUsers, Title=User().Email, If(Gallery1.Selected.Supplier_Type=1,Group1, Gallery1.Selected.Supplier_Type=2,Group2, Gallery1.Selected.Supplier_Type=3,Group3, Gallery1.Selected.Supplier_Type=4,Group4, Gallery1.Selected.Supplier_Type=5,Group5,.... //fill in all the posibility of groupnum ) ) )>=2,true,false)

Best regards,

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PPSA 238 on at

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This looks like what I'm trying to achieve yes but unfortunately still isn't working for me when trying what you have suggested so far.

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PPSA 238 on at

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@v-yutliu-msft

thank you, this worked in the end, i had to wrap 1,2,3 etc in "" as the supplier_type was text from SQL despite being a number.

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