GridViewColumn.CellTemplateのStackPanelでTextBlockをマルチバインドしてもテキストが表示されない

Question

ListViewにはGridviewがあり、複数の列に対して2行のデータが必要です。一番上の孤独にはアイテムの量とその量にその量を乗じたものがあります。私は一番上の金額を上に表示することはできますが、金額は表示されません。私は正しい量が引っ張られていることを確認するためにバックエンド部分に区切りがあり、正しい番号を返していますが、プログラムを実行すると表示されません。ここで

<Window x:Class="Listviewissue.MainWindow" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Title="MainWindow" Height="350" Width="525" 
    xmlns:local="clr-namespace:Listviewissue"> 
<Window.Resources> 
    <local:AmountQuantityConverter x:Key="AmtQConverter"/> 

</Window.Resources> 
<Grid > 
    <ListView Name="lstBids" Margin="3" Grid.ColumnSpan="4" Grid.Row="1" MinHeight="200"> 
     <ListView.View> 
      <GridView> 
       <GridViewColumn Header ="Q"> 
        <GridViewColumn.CellTemplate> 
         <DataTemplate> 
          <TextBlock Margin="1" Text="{Binding Path=Quantity}"/> 
         </DataTemplate> 
        </GridViewColumn.CellTemplate> 
       </GridViewColumn> 
       <GridViewColumn Header ="Sub Name" Width="100"> 
        <GridViewColumn.CellTemplate> 
         <DataTemplate> 
          <TextBlock Margin="1" Text="{Binding Path=SubContractorName}"/> 
         </DataTemplate> 
        </GridViewColumn.CellTemplate> 
       </GridViewColumn> 
       <GridViewColumn Header ="Sub Amt"> 
        <GridViewColumn.CellTemplate> 
         <DataTemplate> 
          <StackPanel> 
           <TextBlock Margin="1" Text="{Binding Path=SubContractorAmount, StringFormat={}{0:C}}"/> 
           <TextBlock Margin="1"> 
            <TextBlock.Text> 
             <MultiBinding Converter="{StaticResource AmtQConverter}" StringFormat="{}{0:C}}"> 
              <Binding Path="Quantity" /> 
              <Binding Path="SubContractorAmount"/> 
             </MultiBinding> 
            </TextBlock.Text> 
           </TextBlock> 
          </StackPanel> 
         </DataTemplate> 
        </GridViewColumn.CellTemplate> 
       </GridViewColumn> 
      </GridView> 
     </ListView.View> 
    </ListView> 
</Grid> 

ここに戻っCSファイル

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Data; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Imaging; 
using System.Windows.Navigation; 
using System.Windows.Shapes; 
using System.IO; 

namespace Listviewissue 
{ 
/// <summary> 
/// Interaction logic for MainWindow.xaml 
/// </summary> 
public partial class MainWindow : Window 
{ 
    public MainWindow() 
    { 
     InitializeComponent(); 
     LoadBox(); 
    } 

    private void LoadBox() 
    { 
     BidSheet bs = new BidSheet(); 
     bs.ReadFromDatabase("Test"); 
     lstBids.ItemsSource = bs.BidSheetLineItems; 
    } 
} 

public class AmountQuantityConverter : IMultiValueConverter 
{ 
    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture) 
    { 
     // Return the total value of all the items in stock. 
     decimal quantity = decimal.Parse(values[0].ToString()); 
     decimal amt = decimal.Parse(values[1].ToString()); 
     decimal result = (quantity * amt); 
     return result; 
    } 

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture) 
    { 
     throw new NotSupportedException(); 
    } 
} 



public class BidSheet 
{ 
    public BidSheet() 
    { 
     BidSheetLineItems = new BidSheetLineItems(); 
    } 
    public BidSheetLineItems BidSheetLineItems { get; set; } 

    public void ReadFromDatabase(string file) 
    { 
     BidSheet bidSheet = new BidSheet(); 
     System.Xml.Serialization.XmlSerializer reader = 
     new System.Xml.Serialization.XmlSerializer(typeof(BidSheet)); 
     System.IO.StreamReader xmlFile = new System.IO.StreamReader(
      file + ".xml", true); 
     bidSheet = (BidSheet)reader.Deserialize(xmlFile); 

     BidSheetLineItems = bidSheet.BidSheetLineItems; 

     xmlFile.Close(); 
    } 
    } 


public class BidSheetLineItems : List<BidSheetLineItem> 
{ 


} 

public class BidSheetLineItem 
{ 
    public BidSheetLineItem() 
    { 
     Quantity = 0; 
     SubContractorName = ""; 
     SubContractorAmount = 0; 
    } 
    public double Quantity { get; set; } 
    public string SubContractorName { get; set; } 
    public decimal SubContractorAmount { get; set; } 
} 

} 

そして、いくつかのデータ

<?xml version="1.0" encoding="utf-8"?> 
<BidSheet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
<BidSheetLineItems> 
    <BidSheetLineItem> 
     <Quantity>1</Quantity> 
     <SubContractorName>Harry</SubContractorName> 
    <SubContractorAmount>50</SubContractorAmount> 
</BidSheetLineItem> 
<BidSheetLineItem> 
    <Quantity>5</Quantity> 
    <SubContractorName>Arther</SubContractorName> 
    <SubContractorAmount>248120</SubContractorAmount> 
</BidSheetLineItem> 
<BidSheetLineItem> 
    <Quantity>2</Quantity> 
    <SubContractorName>Bill</SubContractorName> 
    <SubContractorAmount>340000</SubContractorAmount> 
</BidSheetLineItem> 
<BidSheetLineItem> 
    <Quantity>3</Quantity> 
    <SubContractorName>Fred</SubContractorName> 
    <SubContractorAmount>248120</SubContractorAmount> 
</BidSheetLineItem> 
<BidSheetLineItem> 
    <Quantity>5</Quantity> 
    <SubContractorName>Ron</SubContractorName> 
    <SubContractorAmount>248120</SubContractorAmount> 
</BidSheetLineItem> 
<BidSheetLineItem> 
    <Quantity>1</Quantity> 
    <SubContractorName>Goerge</SubContractorName> 
    <SubContractorAmount>60</SubContractorAmount> 
</BidSheetLineItem> 
    </BidSheetLineItems> 
</BidSheet> 

とxmlファイルで事前のおかげで、あなたが必要な場合は私に知らせて私を助けるためのあらゆる情報

Answer 1

さて、私はそれを理解しました。私は

<MultiBinding Converter="{StaticResource AmtQConverter}" StringFormat="{}{0:C}}"> 

を持っていたし、それは

<MultiBinding Converter="{StaticResource AmtQConverter}" StringFormat="{}{0:C}">