【发布时间】：2014-06-26 16:28:19
【问题描述】：
当单击 ListView 上的项目时，我想制作另一个不同的模板以显示在其下方。我在 Window.Resources 中定义了模板，我考虑在单击项目时更改 ItemTemplate，添加新项目并将其更改为默认模板，但我使用 ListView 作为 ItemsSource 的列表它只显示一个模板，只是因为（现在) 它们在绑定中是相同的。我该怎么办？
代码：
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
List<TransactionItem> item = new List<TransactionItem>();
item.Add(new TransactionItem() { category="Deska", index="2", name="Topielec"});
List<object> transactions = new List<object>();
transactions.Add(new Transaction() { name = "Maciek", surname = "Chludzinski", begin = "Dzisiaj 20:14", end = "Dzisiaj 21:14", price = "240 zł", remain = "42 minuty", items = item });
obMainListBinding.ItemTemplate = (DataTemplate)this.FindResource("LessClientTemplate");
MessageBox.Show(obMainListBinding.ItemTemplate.DataTemplateKey.ToString());
transactions.Insert(1, new Transaction() { name = "jhadf", surname = "Chludzhadfi", begin = "Dhad:14", end = "Dzisiajah", price = "240 zł", remain = "42 minuty"});
obMainListBinding.ItemTemplate = (DataTemplate)this.FindResource("BasicTransactionTemplate");
obMainListBinding.ItemsSource = transactions;
}
public class Transaction
{
public string name { get; set; }
public string surname { get; set; }
public string begin { get; set; }
public string end { get; set; }
public string remain { get; set; }
public string price { get; set; }
public List<TransactionItem> items { get; set; }
}
public class TransactionItem
{
public string category { get; set; }
public string index { get; set; }
public string name { get;set; }
}
public class LessTransaction
{
public string name { get; set; }
public string surname { get; set; }
public string begin { get; set; }
public string end { get; set; }
public string remain { get; set; }
public string price { get; set; }
}
}
XAML：
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="SurfManager.MainWindow"
Title="MainWindow" Height="524.5" Width="1078">
<Window.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded"/>
</Window.Triggers>
<Window.Resources>
<DataTemplate x:Key="BasicTransactionTemplate">
<Grid MaxHeight="50">
<Grid.RowDefinitions>
<RowDefinition Height="41*"/>
<RowDefinition Height="42*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0*"/>
<ColumnDefinition Width="192*"/>
<ColumnDefinition Width="234*"/>
<ColumnDefinition Width="189*"/>
<ColumnDefinition Width="443*"/>
</Grid.ColumnDefinitions>
<Label Name="Name" Content="{Binding name}" Grid.RowSpan="1" Grid.Column="1" Grid.ColumnSpan="1" />
<Label Name="Surname" Content="{Binding surname}" Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="1"/>
<Label Name="Begin" Content="{Binding begin}" Grid.Column="2"/>
<Label Name="End" Content="{Binding end}" Grid.Row="1" Grid.Column="2"/>
<Label Name="Remain" Content="{Binding remain}" Grid.Column="3"/>
<Label Name="Price" Content="{Binding price}" Grid.Row="1" Grid.Column="3"/>
<ListView Name="lvItems" ItemsSource="{Binding items}" Grid.Column="4" Grid.RowSpan="2">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding category}" />
<TextBlock Text=", Nr" />
<TextBlock Text="{Binding index}" />
<TextBlock Text="{Binding name}" />
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
</DataTemplate>
<DataTemplate x:Key="LessClientTemplate">
<Grid MaxHeight="50">
<Grid.RowDefinitions>
<RowDefinition Height="41*"/>
<RowDefinition Height="42*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0*"/>
<ColumnDefinition Width="192*"/>
<ColumnDefinition Width="234*"/>
<ColumnDefinition Width="189*"/>
<ColumnDefinition Width="443*"/>
</Grid.ColumnDefinitions>
<Label Name="Name" Content="{Binding name}" Grid.RowSpan="1" Grid.Column="1" Grid.ColumnSpan="1" />
<Label Name="Surname" Content="{Binding surname}" Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="1"/>
<Label Name="Begin" Content="{Binding begin}" Grid.Column="2"/>
<Button Name="End" Content="{Binding end}" Grid.Row="1" Grid.Column="2"/>
</Grid>
</DataTemplate>
</Window.Resources>
<Grid>
<TabControl>
<TabItem Header="Obecne Wypożyczenia" Background="#FFF40AFF" Foreground="Black" BorderBrush="#FF8C8E94" OpacityMask="White">
<Grid Background="#FFE5E5E5">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
</Grid.RowDefinitions>
<ListView Name="obMainListBinding" BorderThickness="0" ItemTemplate="{StaticResource BasicTransactionTemplate}">
<ListView.Resources>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<Border Background="{TemplateBinding Background}">
<ContentPresenter />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.Resources>
</ListView>
</Grid>
</TabItem>
<TabItem Header="Baza Klientow">
<Grid Background="#FFE5E5E5">
<ListView BorderThickness="0" >
<ListViewItem Height="66" Background="Red">
<Grid Background="Black" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0*"/>
<ColumnDefinition Width="0*"/>
<ColumnDefinition Width="0*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="0*"/>
<RowDefinition Height="0*"/>
<RowDefinition Height="0*"/>
</Grid.RowDefinitions>
</Grid>
</ListViewItem>
</ListView>
</Grid>
</TabItem>
<TabItem Header="TabItem" HorizontalAlignment="Left" Height="35.293" VerticalAlignment="Top" Width="57.32" Margin="-2,-2,0,-13.333">
<Button Content="Button" Height="100" Margin="430,174,430,173"/>
</TabItem>
</TabControl>
【问题讨论】：
-
如果没有看到您的原始代码，我们将不知道如何对您现有的代码库进行更改。请发帖a minimal example of what needs to change，并详细说明需要修改的地方。
-
它必须是具有不同模板的另一个项目吗？您能否不将您需要的内容封装在根据项目是否为选定项目而更改其外观的 UserControl 中，并将其托管在原始项目模板中？
-
@JimBobBennett 我不认为它会起作用，因为应用程序在实际使用中会使用相当多的内存，我希望它使用尽可能少的内存。
标签： c# wpf listview itemtemplate