Unanswered

ComboBox text doesn't use after update

(0) Share

Report

Posted on by TheGallons

I All, I'm using combobox for first time in my powerapp application! I use a ComboBox called cmbSuppliers, into a DataCard, linked to a sharepoint list called "Suppliers". In that list there is a unique field called SupplierName. Using the App, the value selected on this Combobox is stored into another sharepoint list called "MainTable". If I create a record in MainTable for the first time using submitform, the value selected in ComboBox (cmbSuppliers.Selected.SupplierName) is successfully strored into related field but, when I recall the record from the "Maintable" list, I see the text in my Combobox but I cannot use it because the value of "cmbSuppliers.selected.SupplierName" is empty. If I try to select another supplier from the combobox, the value of "cmbSuppliers.selected.supplierName" successfully change. Where am I doing wrong??

Mostra meno

Categories:

Building Power Apps

I have the same question (0)

All responses (8)

Answers (1)

Delid4ve 795 on at

Like (0)

Report
How is the field being stored in the main table? (What type of column)

Have you set the defaultselecteditems in the combobox properties?

after patching you will also need to reset the combobox - ie set the reset property as a variable then after your patch do:

Set(Variablename,true);Set(Variablename,false)

Was this reply helpful? Yes No
TheGallons 89 on at

Like (0)

Report

Hi, thanks for the response.
The field in MainTable is a single Text Field, length 255 char.
I don't set DefaultSelectedItems! What value I must to fill in?
In reset property of Combobox I have "false" value, which variable I must to set in this property?

Was this reply helpful? Yes No
Delid4ve 795 on at

Like (0)

Report

If you are only storing 1 value then use a dropdown instead of a combo.

otherwise i'm assuming your storing as comma separated values?

you can choose any variable name you like, if you change the data then the combobox needs to be reset in order to update it with the changed values, so we set reset true, reset false to do this.

have a read of this thread:

https://powerusers.microsoft.com/t5/Building-Power-Apps-Formerly/Combo-box-in-edit-forms/m-p/165630#M55594

and this:

https://powerapps.microsoft.com/en-us/blog/default-values-for-complex-sharepoint-types/

Was this reply helpful? Yes No
TheGallons 89 on at

Like (0)

Report

I'm using ComboBox because in that list there are more than 70 supplier names and in this way, the user can search the correct supplier to retrive which his want easily. My problem is not to Update the maintable with selected Supplier Name but how can do to refer to the value in Combobox to check if the field is blank.
I don't understand how can use reset property

Was this reply helpful? Yes No
TheGallons 89 on at

Like (0)

Report

Think to have resolved my problem. I can check if the field is Blank using:
If(isBlank(cmbSupplier.Selected);"Error";"OK")

It seems that run successfully.
Thanks for the support
Regards
Davide

Was this reply helpful? Yes No
v-yutliu-msft on at

Like (0)

Report

Hi @TheGallons ,

I'm very glad that you've solved your problem!

Do you have any other problems?

If you do not have any other problems, could you change your issue's status to "Answered"?

Thanks!

Best regards,

Was this reply helpful? Yes No
TheGallons 89 on at

Like (0)

Report

I thought I had solved the problem and instead I was wrong.
When I recall the record, I don't know how can I do to retrieve the value stored in ComboBox.

Please see the example in attached image.
I use cmbSupplier.Selected in a Label Text to see the value selected in ComboBox but seems that it doesn't work.
I also used cmbSupplier.SelectedItems.Supplier whit the same wrong result.

Any suggestion will be appreciated

Supplier.jpg

Was this reply helpful? Yes No
Verified answer

Delid4ve 795 on at

Like (0)

Report
you want an easier way to do this...

change to a dropdown.

Add a text input control above it.

Set the dropdown items property to (change the textinputname to the name of the textbox in your app:

If(IsBlank(TextInputName.Text) Or TextInputName.Text = "",Suppliers,Filter(Suppliers,TextInputName.Text in SupplierName))

Set the Default property of the dropdown to (assuming this in in a form and the form is MainTable):

ThisItem.SupplierName

Was this reply helpful? Yes No