Printing data in listview to firebase - firebase

Question

I asked this before but no one could answer. Thanks in advance to the person who can help.
<Grid>
<ListView x:Name="lstOrder">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Text="{Binding OrderName}" Grid.Row="0" Grid.Column="0" HorizontalTextAlignment="Start" x:Name="lblName"/>
<Label Text="{Binding OrderCount}" Grid.Row="0" Grid.Column="1" HorizontalTextAlignment="Start" x:Name="lblStepperValue"/>
<Label Text="{Binding OrderDetail}" Grid.Row="1" Grid.Column="0" HorizontalTextAlignment="Start" x:Name="edtDetail"/>
<Label Text="{Binding OrderPrice}" Grid.Row="1" Grid.Column="1" HorizontalTextAlignment="Start" x:Name="lblPriceNormal"/>
</Grid>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<Button BackgroundColor="Red" VerticalOptions="End" Text="Sipariş ver" x:Name="giveOrder" Clicked="giveOrder_Clicked"/>
</Grid>
This way I have a simple list view. And data is sent from realmDB to this list view. I want to send the data sent from RealmDB to this list view to my Firebase database when the button is clicked.
I don't want to write data to listview via firebase.
What I want to do is print the data in listview to firebase.
This is like printing the text on a label to firebase. I want to print the data from listview to firebase.
This is my button's code block. So when I press this button, the data in listview will be written to firebase.
that is, it will send the data on the labels to firebase.
private async void giveOrder_Clicked(object sender, System.EventArgs e)
{
await firebaseHelper.AddDoner(lstOrder.**!I can't do this part!**);
}
Hopefully it's revealing enough.
Thanks :)
This is the part I wrote for firebase, I wonder if there could be a mistake here?
public class FirebaseHelper
{
readonly FirebaseClient firebase = new FirebaseClient("my firebase link");
public async Task<List<DonerModel>> GetAllDoners()
{
return (await firebase
.Child("Doners")
.OnceAsync<DonerModel>()).Select(item => new DonerModel
{
OrderList = item.Object.OrderList
}).ToList();
}
public async Task AddDoner( string lstOrder)
{
await firebase
.Child("Doners")
.PostAsync(new DonerModel() { OrderList = lstOrder});
}
}
enter image description here

Answer 1

To get the list of objects that have been bound to the ListView you can use the ItemSource property.
Another point to note is that if you need the exact type (Order in your example) you can do something like this
private async void giveOrder_Clicked(object sender, System.EventArgs e)
{
if(lstOrder.ItemsSource != null && lstOrder.ItemsSource is List<OrderRealm> orders)
{
//send orders to firebase
foreach(var order in orders)
{
await firebaseHelper.AddDoner(order.*field you want to add to firebase*);
}
}
}