CODEWITHSUNDEEP
c#visual-studiolistviewxamarin
S Kirchner
S Kirchner

Reputation: 123

Xamarin Binding from List, query List in c#

If´ve got a xaml-view, which gets some values from a list (from a DB throw a rest-service). so there are some parameters like "id", "phone number" or "adress". Evrybody has an ID, sometimes a phoneNo, sometimes Address or both. now i want to view a list, with the ID, but only with "people" which has got an phone number. that for, i´ve got a listview, in which i´m binding the phone number f.e.:

 ...<viewcell x:Name="people">
                                    <Label Text="ID: "/>
                                    <Label Text="{Binding ID}"/>                                        
                                    <Label Text="PhoneNo: "/>
                                    <Label Text="{Binding PhoneNr}"/>
  </viewcell>...

this is where i set the itemsource: 

        people.ItemsSource = retList;

so, as you can see, i will get a list, where all people are listed, sometimes there are phonenumbers, sometimes this field is empty. but i wonly want the peoble with an phonenumber in my list. is this possible? thanks a lot

Upvotes: 0

Views: 167

Answers (1)

Miamy
Miamy

Reputation: 2299

Use this:

var phonesList = retList.Where(p => !string.IsNullOrEmpty(p.PhoneNr)).ToList();

Upvotes: 1

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