下面是 XAML。来自对象的数据正在填充 ListView 。我只是无法让组显示。我想对一个名为 workcenter 的属性进行分组，它没有显示在 ListView 中，但它仍然是绑定(bind)到它的类的一部分。
我是 WPF 菜鸟，如果答案就在我面前而我错过了，请原谅我。我正在使用网络上的示例来尝试使其正常工作，但还不到这一点。
这是我必须完成的项目的模型，因此请忽略愚蠢的表单文本和命名空间。 =)
<Window x:Class="Son_of_a_Batching_WPF_Mock_up.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
DataContext="{Binding RelativeSource={RelativeSource Self}}"
Title="You Son of a Batch. I'm Detective John Kimble! I'm A Cop You Idiot!" Height="600" Width="800">
<Window.Resources>
<CollectionViewSource Source="{Binding testDataCollection}"
x:Key="src">
<CollectionViewSource.GroupDescriptions>
<PropertyGroupDescription PropertyName="workcenter" />
</CollectionViewSource.GroupDescriptions>
</CollectionViewSource>
</Window.Resources>
<Grid x:Name="mainGrid" Background="White">
<ComboBox x:Name="cboWorkCenters" HorizontalAlignment="Left" VerticalAlignment="Top" Width="256" Background="{x:Null}" Margin="12,50,0,0" SelectedIndex="0" FontSize="12pt" Height="27.28">
<ComboBoxItem Content="Group by work center" FontSize="12pt"/>
<ComboBoxItem Content="Group by batch type" FontSize="12pt"/>
</ComboBox>
<Label x:Name="lblFilter" FontSize ="12pt" HorizontalAlignment="Left" Margin="11.473,13.043,0,0" VerticalAlignment="Top" Content="Filter by work center:" Width="252.527" FontWeight="Bold"/>
<ListView x:Name="lvBatches" Margin="12,83,12,12" ItemsSource="{Binding Source = {StaticResource src}}"><!--ItemsSource="{Binding testDataCollection}">-->
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Margin" Value="0,0,0,5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<Expander IsExpanded="True" BorderBrush="#FFA4B97F" BorderThickness="0,0,0,1">
<Expander.Header>
<DockPanel>
<TextBlock FontWeight="Bold" Text=" {Binding Path=name}" Margin="5,0,0,0" Width="100"/>
<TextBlock FontWeight="Bold" Text=" {Binding Path=itemcount}"/>
</DockPanel>
</Expander.Header>
<Expander.Content>
<ItemsPresenter />
</Expander.Content>
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListView.GroupStyle>
<ListView.View>
<GridView>
<GridViewColumn x:Name="colID" Header="Batch ID" Width="200" DisplayMemberBinding="{Binding id}"/>
<!--<GridViewColumn x:Name="colWC" Header="Work Center" Width="100" DisplayMemberBinding="{Binding workcenter}"/>-->
<GridViewColumn x:Name="colStart" Header="Start Time" Width="150" DisplayMemberBinding="{Binding start}"/>
<GridViewColumn x:Name="colEnd" Header="End Time" Width="150" DisplayMemberBinding="{Binding end}"/>
<GridViewColumn x:Name="colDur" Header="Duration" Width="100" DisplayMemberBinding="{Binding duration}"/>
<GridViewColumn x:Name="colBatchType" Header="Batch Type" Width="100" DisplayMemberBinding="{Binding batchtype}"/>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
由于我无法发布图片，所以我将尝试使用文字技巧绘制出它的外观。我得到的是:
**Batch ID Start Time End Time Duration Batch Type**
-------- ---------- -------- -------- ----------
12344555 7/21/11 7/22/11 100 Loaded
54564564 7/21/11 7/23/11 50 Sequential
12433555 7/21/11 7/22/11 100 Loaded
54564564 7/21/11 7/23/11 50 Sequential
12311555 7/21/11 7/22/11 100 Loaded
54456564 7/21/11 7/23/11 50 Sequential
12344555 7/21/11 7/22/11 100 Loaded
57744564 7/21/11 7/23/11 50 Sequential
12994555 7/21/11 7/22/11 100 Loaded
54500564 7/21/11 7/23/11 50 Sequential
我要的是这个，332、404为组。
**Batch ID Start Time End Time Duration Batch Type**
-------- ---------- -------- -------- ----------
**332**
12344555 7/21/11 7/22/11 100 Loaded
12433555 7/21/11 7/22/11 100 Loaded
12311555 7/21/11 7/22/11 100 Loaded
**404**
54564564 7/21/11 7/23/11 50 Sequential
54564564 7/21/11 7/23/11 50 Sequential
54500564 7/21/11 7/23/11 50 Sequential
这是后面的代码。我认为这不会有帮助。其中大部分只是要在模型中显示的测试数据。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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.Collections.ObjectModel;
namespace Son_of_a_Batching_WPF_Mock_up
{
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class Window1 : Window
{
private ObservableCollection<TestData> _testDataCollection = new ObservableCollection<TestData>();
public ObservableCollection<TestData> testDataCollection { get { return _testDataCollection; } }
//public System.ComponentModel.ICollectionView source { get; set; }
public Window1()
{
InitializeComponent();
//this.source.GroupDescriptions.Add(new PropertyGroupDescription("workcenter"));
LoadTestData();
}
private void LoadTestData()
{
//int[] icnt = new int[529];
for (int i = 0; i <= 99; i++)
{
_testDataCollection.Add(new TestData());
}
//for (int i = 0; i < _testDataCollection.Count; i++)
//{
// icnt[int.Parse(_testDataCollection[i].workcenter)] ++;
//}
//this.label1.Content = "332:" + icnt[332].ToString() + "," + "402:" + icnt[402].ToString() + ","+ "404:" + icnt[404].ToString() + ","
// + "522:" + icnt[522].ToString() + ","+ "523:" + icnt[523].ToString() + ","+ "524:" + icnt[524].ToString() + ","
// + "527:" + icnt[527].ToString() + ","+ "528:" + icnt[528].ToString() + ",";
}
}
public class TestData
{
private string[] _WCs = new string[] { "404", "527", "523", "524", "332", "528", "522", "402" };
private string[] _workcenters = new string[1000];
private string _workcenter;
private double _duration = 0;
public string id
{
get { return Guid.NewGuid().ToString(); }
}
public string workcenter
{
get
{
return _workcenter;
}
}
public DateTime start
{
get { return DateTime.Now; }
}
public DateTime end
{
get { return DateTime.Now; }
}
public double duration
{
get
{
return _duration;
}
}
public string batchtype
{
get
{
switch (workcenter)
{
case "332":
case "402":
case "527":
return "Loaded Batch";
case "404":
case "524":
return "Sequential Batch";
case "522":
case "528":
case "523":
return "Supervisor Batch";
default:
return "";
}
}
}
public TestData()
{
RandomizeWCs();
Random rnd = new Random();
_workcenter = _workcenters[rnd.Next(0, 999)];
rnd = new Random();
_duration = rnd.Next(10, 60);
}
private void RandomizeWCs()
{
Random rnd = new Random();
int iIndex, i;
while (_workcenters.Contains(null))
{
iIndex = rnd.Next(1000);
i = rnd.Next(8);
if (_workcenters[iIndex] == null)
{
_workcenters[iIndex] = _WCs[i];
}
}
}
}
}
最佳答案
Unreal:几个小时以来，我一直在用头撞墙，但我不好意思说我解决了自己的问题。解决方案？
<TextBlock FontWeight="Bold" Text=" {Binding Path=name}" Margin="5,0,0,0" Width="100"/>
<TextBlock FontWeight="Bold" Text=" {Binding Path=itemcount}"/>
该死的名字和元素数量没有大写!!!给我一秒钟打自己的脸...annnnnd...我现在回来了。 Name 和 ItemCount 是正确的编码方式。
无论如何感谢所有回复的人的帮助。
关于c# - WPF Listview 组 header 不显示 : Any Ideas?，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6781809/