Combo box to search own column?

[FreddieV]

I am wondering if it's possible to use a combo box to search data in a column, rather than allowing free text info.

I have the following form, where I want the combo box for Document Number (BC Number) to search the data already in the underlying SharePoint list.

Below is the Sharepoint list, with the column, circled in red that I want the field to draw in its data from.

Is this possible?

[gabibalaban]

@FreddieV ,

Well, if you need all documents in the list there might be a problem to obtain what you want (when we are talking about more than 500 items in the list).

If you can filter (like status = "Pending" or Created in last 30 days) the documents and can the filter results under 500 items , you can set Items property of combobox to: 

Distinct(Filter(YourDataSource, condition above))

And in Gallery use among other conditions you might have use: 

'Document Number'=ComboBox1.Selected.Result

Hope it helps !

[FreddieV]

@gabibalaban 

Thanks for your reply. However, I am not using a gallery, this is an app with fields created from underlying SharePoint list columns. Do you have to use a gallery to do what I want then?

[gabibalaban]

Well no, it is not necesarry to use a Gallery. It was only a supposition.