아래의 첫 번째 블록에서 제 바인딩 구절 중 하나의 이름이 고의로 누락되어 두 번째 블록과 비교할 수 있습니다. 그 차이는 'ag2.item ...'행에 속성에서 찾을 수 없습니다.
항목은 내 모델입니다.MVVM 바인딩 오류?
블록 2에서 내보기 모델 (ag2.viewModel.itemViewModel)을 가리키는 것을 볼 수 있습니다.
XAML 또는 내 코드 숨김에서 viewmodel이 아닌 내 클래스를 가리 키도록하려면 무엇을해야합니까?
블록 1 :
BindingExpression path error: 'itemModel1' property not found on 'ag2.item, ag2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. BindingExpression: Path='itemModel1' DataItem='ag2.item, ag2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'; target element is 'Windows.UI.Xaml.Controls.TextBlock' (Name='null'); target property is 'Text' (type 'String')
블록 2 : 뒤에
BindingExpression path error:'itemModel' property not found on 'ag2.viewModel.itemViewModel, ag2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. BindingExpression: Path='itemModel' DataItem='ag2.viewModel.itemViewModel, ag2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'; target element is 'Windows.UI.Xaml.Controls.TextBlock' (Name='null'); target property is 'Source' (type 'String')
코드 차단하기 위해 2 :
itemViewModel VM = new itemViewModel((Int32)navigationParameter);
DataContext = VM;
또한해야 블록 1에서 나는 ItemSource="{Binding item}"
이 설정된 GridView에 대한 제 바인딩을 수행하고 있습니다. 더 나은 이해를 얻기 위해 시도하는 노력의 일환으로 : Text="{Binding Path=itemModel}"
업데이트 :
블록 2에서 나는이를 사용하여 그리드 및 textblocks를 사용하여 내 UI를 만들었습니다. 내 코드를 거기에 넣고 있습니다. 아래는 ViewModel이고 그 아래는 내 모델입니다. XAML이 있습니다. MVVM이 새로 생겼으므로 내가 잘못하고있는 것을 실제로 알지 못합니다. 어떤 도움이라도 대단히 감사합니다.
XAML :
<common:LayoutAwarePage
x:Name="pageRoot"
x:Class="autoGarage2.VehicleItemDetailPage"
IsTabStop="false"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:common="using:autoGarage2.Common"
xmlns:local="using:autoGarage2"
xmlns:data="using:autoGarage2"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006">
<!--
This grid acts as a root panel for the page that defines two rows:
* Row 0 contains the back button and page title
* Row 1 contains the rest of the page layout
-->
<Grid Style="{StaticResource LayoutRootStyle}">
<Grid.RowDefinitions>
<RowDefinition Height="140"/>
<RowDefinition Height="2*"/>
</Grid.RowDefinitions>
<!-- Back button and page title -->
<Grid
Style="{StaticResource LayoutRootStyle}" Grid.Row="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Button x:Name="backButton" Click="GoBack" IsEnabled="{Binding Frame.CanGoBack, ElementName=pageRoot}" Style="{StaticResource BackButtonStyle}"/>
<TextBlock x:Name="pageTitle" Text="{StaticResource AppName}" Style="{StaticResource PageHeaderTextStyle}" Grid.Column="1"/>
</Grid>
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="3*"/>
<RowDefinition Height="1*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Horizontal" Width="auto" Margin="50,0,0,0" VerticalAlignment="Top" >
<Grid HorizontalAlignment="Left" Width="250" Height="250">
<Border Background="White" BorderBrush="CornflowerBlue" BorderThickness="1">
<Image Source="{Binding Image}" Margin="50"/>
</Border>
<StackPanel VerticalAlignment="Bottom" Background="CornflowerBlue">
<StackPanel Orientation="Horizontal" DataContext="{Binding vehicles}">
<TextBlock Text="{Binding VehicleMake}" Foreground="{StaticResource ListViewItemOverlayForegroundThemeBrush}" Style="{StaticResource PageSubheaderTextStyle}" Margin="5"/>
<TextBlock Text="{Binding VehicleModel}" Foreground="{StaticResource ListViewItemOverlaySecondaryForegroundThemeBrush}" Style="{StaticResource PageSubheaderTextStyle}" Margin="5"/>
</StackPanel>
</StackPanel>
</Grid>
</StackPanel>
<StackPanel Grid.Row="0" Grid.Column="1">
<Grid Margin="20,0,0,20">
<Grid.RowDefinitions>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition Height="1*"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Vehicle Make:" Grid.Row="0" Grid.Column="0" FontSize="25" Foreground="Black" />
<TextBox Text="{Binding Path=VehicleMake}" Grid.Row="0" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="Vehicle Model:" FontSize="25" Foreground="Black" Grid.Row="1" Grid.Column="0"/>
<TextBox Text="{Binding VehicleModel}" Grid.Row="1" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="Vehicle Year:" FontSize="25" Foreground="Black" Grid.Row="2" Grid.Column="0"/>
<TextBox Text="{Binding VehicleYear}" Grid.Row="2" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="License Plate:" FontSize="25" Foreground="Black" Grid.Row="3" Grid.Column="0"/>
<TextBox Text="" Grid.Row="3" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="VIN #" FontSize="25" Foreground="Black" Grid.Row="4" Grid.Column="0"/>
<TextBox Text="" Grid.Row="4" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1" />
<TextBlock Text=" Current Mi/Km" FontSize="25" Foreground="Black" Grid.Row="5" Grid.Column="0"/>
<TextBox Text="" Grid.Row="5" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="" FontSize="25" Foreground="Black" Grid.Row="6" Grid.ColumnSpan="2"/>
<TextBlock Text="Last Oil Change" FontSize="25" Foreground="Black" Grid.Row="7" Grid.Column="0"/>
<TextBox Text="" Grid.Row="7" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="Last Oil Change Mi/Km" FontSize="25" Foreground="Black" Grid.Row="8" Grid.Column="0"/>
<TextBox Text="" Grid.Row="8" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="" FontSize="25" Foreground="Black" Grid.Row="9" Grid.ColumnSpan="2"/>
<TextBlock Text="Reminder Mi/Km" FontSize="25" Foreground="Black" Grid.Row="10" Grid.Column="0"/>
<TextBox Text="" Grid.Row="10" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
<TextBlock Text="Reminder Month(s)" FontSize="25" Foreground="Black" Grid.Row="11" Grid.Column="0"/>
<TextBox Text="" Grid.Row="11" Grid.Column="1" FontSize="25" BorderBrush="CornflowerBlue" BorderThickness="1"/>
</Grid>
</StackPanel>
</Grid>
</Grid>
</common:LayoutAwarePage>
보기 모델 :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections.ObjectModel;
using Windows.Foundation.Collections;
using System.IO;
namespace autoGarage2.viewModel
{
class vehicleViewModel
{
private IList<vehicle> m_vehicles;
private IList<vehicle> m_vehicleItem;
public IList<vehicle> vehicles
{
get { return m_vehicles; }
set { m_vehicles = value; }
}
public IList<vehicle> vehicleItem
{
get { return m_vehicleItem; }
set { m_vehicleItem = value; }
}
private IList<vehicle> getVehicleDetail(Int32 vId)
{
var vehicleItem =
from v in vehicles
where v.VehicleId == vId
select v;
if (vId > 0)
{
//vehicles.Clear();
m_vehicles = new List<vehicle>();
foreach (var item in vehicleItem)
{
m_vehicles = new List<vehicle>
{
new vehicle(item.VehicleId, item.VehicleMake.ToString(), item.VehicleModel.ToString(), item.VehicleYear, item.Image.ToString())
};
//vehicle myVehicle = new vehicle(item.VehicleId, item.VehicleMake.ToString(), item.VehicleModel.ToString(), item.VehicleYear, item.Image.ToString());
//m_vehicles.Add(myVehicle);
}
}
return m_vehicles;
}
public vehicleViewModel(Int32 vId)
{
m_vehicles = new List<vehicle>
{
new vehicle(1, "Mazda", "3", 2011, "Assets/car2.png"),
new vehicle(2, "Chevy", "Tahoe", 2004, "Assets/jeep1.png"),
new vehicle(3, "Honda", "Goldwing", 2007 ,"Assets/moto1.png")
};
if (vId > 0)
{
//m_vehicles = new List<vehicle>();
//m_vehicles =
//getVehicleDetail(vId);
m_vehicles = new List<vehicle>
{
new vehicle(2, "Chevy", "Tahoe", 2004, "Assets/jeep1.png"),
};
}
}
#region dbCode
//string dbName = "vehicle.db";
//var dbPath = Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, dbName);
//using (var db = new SQLite.SQLiteConnection(dbPath))
// {
// var list = db.Table<vehicle>().ToList();
// m_vehicles = new List<vehicle>();
// for (Int32 i = 0; i < list.Count; i++)
// {
// //m_vehicles.Add(db.Table<vehicle>().ToList());
// }
// }
//foreach (vehicle item in m_vehicles)
//{
// AllItems.Add(item);
//}
#endregion
}
}
모델 : 다른에 TextBlock
를 데이터 바인딩하려고하는 것처럼
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//using SQLite;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Media.Imaging;
namespace autoGarage2
{
class vehicle : autoGarage2.Common.BindableBase
{
public vehicle()
{
}
public vehicle(string imagePath)
{
this._imagePath = imagePath;
}
public vehicle(Int32 vId, string vMake, string vModel, Int16 vYear, string imagePath)
{
this.m_vehicleID = vId;
this.m_vehicleMake = vMake;
this.m_vehicleModel = vModel;
this.m_vehicleYear = vYear;
this.m_vehicleName = vMake + " " + vModel;
this._imagePath = imagePath;
}
private Int32 m_vehicleID;
private String m_vehicleMake;
private String m_vehicleModel;
private Int16 m_vehicleYear;
private string m_vehicleName;
private ImageSource _image = null;
private String _imagePath = null;
private static Uri _baseUri = new Uri("ms-appx:///");
//[AutoIncrement, PrimaryKey]
public Int32 VehicleId
{
get
{
return m_vehicleID;
}
set
{
m_vehicleID = value;
OnPropertyChanged("VehicleId");
}
}
public String VehicleMake
{
get
{
return m_vehicleMake;
}
set
{
m_vehicleMake = value;
OnPropertyChanged("VehicleMake");
}
}
public String VehicleModel
{
get
{
return m_vehicleModel;
}
set
{
m_vehicleModel = value;
OnPropertyChanged("VehicleModel");
}
}
public Int16 VehicleYear
{
get
{
return m_vehicleYear;
}
set
{
m_vehicleYear = value;
OnPropertyChanged("VehicleYear");
}
}
public string VehicleName
{
get
{
return m_vehicleName;
}
set
{
m_vehicleName = value;
OnPropertyChanged("VehicleName");
}
}
public ImageSource Image
{
get
{
if (this._image == null && this._imagePath != null)
{
this._image = new BitmapImage(new Uri(vehicle._baseUri, this._imagePath));
}
return this._image;
}
set
{
this._imagePath = null;
this.SetProperty(ref this._image, value);
}
}
public void SetImage(String path)
{
this._image = null;
this._imagePath = path;
this.OnPropertyChanged("Image");
}
}
}
당신이하고있는 일과 달성하고자하는 것이 조금 분명하지 않습니다. 뷰 모델의 구조는 무엇입니까? XAML의 구조는 무엇입니까? itemModel에 바인딩하려고합니까? itemModel은 어디에 정의되어 있습니까? –
업데이트 된 질문을 참조하십시오. 나는 모든 것을 추가했다. 도움을 주시면 대단히 감사하겠습니다. – webdad3
문제가 무엇인지 명확히하십시오. 위의 문제는 ItemModel과의 바인딩 오류를 참조하는 것으로 보입니다. 그러나 XAML의 ItemModel에 대한 바인딩이 없습니다. 어떤 TextBox가 오류를 일으키는 지, 그리고 무엇을 묶고 싶습니까? 뷰에 DataContext가 설정되어 있습니까? –