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Adding/Subtracting power apps columns

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Posted on by rroque

350

The following attempts to subtract or add inventory. I have an ON_HAND function that subtracts from one warehouse and adds the
inventory to the second warehouse. Instead it does something strange. The function below adds the number 1 to the on hand inventory. Say I have 100 forms on hand. But I want to transfer 200 below the error pops up informing the user that it cannot transfer due to insufficient available on hond. Instead it adds a number 1, yes number 1 to the available on hand.

Below is the function I'm using.

Any help is much appreciated.

UpdateContext({isVisible:false});
With(
{
wLookUp: LookUp(
OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_From_Warehouse.Selected.Value
)
},
Patch(
OPTrack_FormsInventoryEnhancedTables,
wLookUp,
{
ON_HAND: If(wLookUp.'ON_HAND' < Value(txtQuantity_6.Text), UpdateContext({isVisible:true}), wLookUp.'ON_HAND' - Value(txtQuantity_6.Text))
}
)
);
With(
{
wLookUp: LookUp(
OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_To_Warehouse.Selected.Value
)
},
Patch(
OPTrack_FormsInventoryEnhancedTables,
wLookUp,
{
ON_HAND: If(wLookUp.'ON_HAND' < Value(txtQuantity_6.Text), UpdateContext({isVisible:true}), wLookUp.'ON_HAND' + Value(txtQuantity_6.Text))
}
)
);

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Building Power Apps

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Verified answer

WarrenBelz 153,073 Most Valuable Professional on at

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Hi @rroque ,

You seem to have duplicated your code in the post, but you need to get the on hand logic outside the Patch

UpdateContext({isVisible:false}); With( { wLookUp: LookUp( OPTrack_FormsInventoryEnhancedTables, FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_From_Warehouse.Selected.Value ) }, If( wLookUp.'ON_HAND' < Value(txtQuantity_6.Text), UpdateContext({isVisible:true}), Patch( OPTrack_FormsInventoryEnhancedTables, wLookUp, {ON_HAND: wLookUp.'ON_HAND' - Value(txtQuantity_6.Text)} ) ) );

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rroque 350 on at

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Thank you so much. Much appreciated/

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rroque 350 on at

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Hi Warren I'm getting some weird behavior when adding inventory. Would you take a look at this if you can.
You'll notice I have subtrac and addition for both from and to warehouses. Whats happening the second with section is just pulling in the numbers from the 1st with function.

UpdateContext({isVisible:false}); UpdateContext({isSaved:false});
With(
{
wLookUp:
LookUp(
OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_From_Warehouse.Selected.Value
)
},
If(
wLookUp.ON_HAND >= Value(txtQuantity_6.Text),
Patch(
OPTrack_FormsInventoryEnhancedTables,
wLookUp,
{ON_HAND: wLookUp.'ON_HAND' - Value(txtQuantity_6.Text)}
), UpdateContext({isVisible:true})
)
);
With(
{
wSearch: LookUp(OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_To_Warehouse.Selected.Value
)
},
Patch(
OPTrack_FormsInventoryEnhancedTables,
wSearch,
{ON_HAND: wSearch.ON_HAND + Value(txtQuantity_6.Text)}
)
)

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rroque 350 on at

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The problem I'm having is this. There are to two lookups one for my source warehouse and the other for my receiving warehouse,
I have no way or understanding how to deal with the first piece of code as a result the code always adds to the receiving warehouse.

Any help is much appreciated.
// recieving warehouse
UpdateContext({isVisible:false});
With(
{
wLookUp:
LookUp(
OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_To_Warehouse.Selected.Value
)
},
Patch(
OPTrack_FormsInventoryEnhancedTables,
wLookUp,
{
ON_HAND: wLookUp.ON_HAND + Value(txtQuantity_6.Text)
}
)
);
// source warehouse
With(
{
wLookUp:
LookUp(
OPTrack_FormsInventoryEnhancedTables,
FORM_NO = ddl_Form_No.Selected.Value && WAREHOUSE = ddl_From_Warehouse.Selected.Value
)
},
If(
wLookUp.ON_HAND < Value(txtQuantity_6.Text),
UpdateContext({isVisible:true}),
Patch(
OPTrack_FormsInventoryEnhancedTables,
wLookUp,
{ON_HAND: wLookUp.ON_HAND - Value(txtQuantity_6.Text)}
)
)
)

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rroque 350 on at

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Thanks so much Warren with your help I found the answer.

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