我在这件事上绞尽脑汁已经有一段时间了，我似乎不明白为什么它总是说“lvwPrice在当前环境下不存在”

我的Xaml代码：

<ContentPage
    xmlns="http://xamarin.com/schemas/2014/forms"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    x:Class="ProjectCrypto.Views.Overview">
    <ContentPage.Content>
        <ListView x:Name="lvwOverview" RowHeight="100">
            <ListView.ItemTemplate ItemsSource="{Binding Coin}">
                <DataTemplate>
                    <ViewCell>
                        <Grid >
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="100"/>
                                <ColumnDefinition/>
                                <ColumnDefinition/>
                            </Grid.ColumnDefinitions>
                            
                            <Label Grid.Column="1" Text="{Binding Key}" VerticalOptions="Start" />
                            <Label x:Name="lvwPrice" Grid.Column="2" Text="test" VerticalOptions="Center"/>
                            <Label Grid.Column="3" Text=">" HorizontalOptions="End" Margin="0,0,16,0" VerticalOptions="Center" TextColor="Black" FontAttributes="Bold"/>
                            
                        </Grid>
                    </ViewCell>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
    </ContentPage.Content>
</ContentPage>

我的xaml。cs代码：

using System.Collections.Generic;
using ProjectCrypto.Repositories;
using Xamarin.Forms;

namespace ProjectCrypto.Views
{
    public partial class Overview : ContentPage
    {
        public Overview()
        {
            InitializeComponent();
            LoadData();
        }
        private async void LoadData()
        {
            lvwOverview.ItemsSource = await CryptoRepository.GetCoins();

            var Coin = await CryptoRepository.GetCoins();

            foreach (var item in Coin)
            {
                lvwPrice.ItemsSource = await CryptoRepository.GetPrice(item.Key);
            }
            
        }
    }
}

有人能帮我解释为什么它不想检测lvwPrice吗？