【发布时间】：2012-03-12 22:51:33
【问题描述】：
所以我希望有多个带有用户控件的选项卡，具体取决于列表中有多少项目。所以我认为这不应该太难但是....我从一个新窗口开始制作一个tabcontroller并将其itemsource（tabcontroler的列表）绑定：
<Window x:Class="xxxxx.extraforms.frmownedchamps"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sp="clr-xxxxx.usercontrols.ucoptions"
Title="frmownedchamps" Height="593" Width="350" Loaded="Window_Loaded_1" ResizeMode="NoResize" WindowStyle="None" ShowInTaskbar="False">
<Grid>
<TabControl Name="thetabcontrol">
<TabControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<Label Content="{Binding name}" />
</StackPanel>
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<DataTemplate DataType="{x:Type sp:ucownedchampviewer}" >
<sp:ucownedchampviewer strname="{Binding Path=name}" strcode="{Binding Path=code}" clclist="{Binding Path=list}" teller="{Binding Path=teller}" />
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
</Grid>
</Window>
一旦窗口被加载，它只会执行 tabcontrol.ItemsSource = settings.clclist;
clclist 是这样的：
public static List<clc> clclist { get; set; }
public void methodblabla()
{
foreach( xml blabla)
{
clc clctemp = new clc(xmlname, xmlcode);
clclist.Add(clctemp);
}
}
the clc class is:
public class clc
{
private static int counter = 0;
public int teller { get; set; }
public String name { get; set; }
public String code { get; set; }
public ObservableCollection<champion> list { get; set; }
public clc(String name, String code)
{
this.name = name;
this.code = code;
teller = counter;
counter++;
makelist();
}
public void makelist()
{
var bytes = Convert.FromBase64String(code);
var values = new System.Collections.BitArray(bytes);
list = new ObservableCollection<champion>();
int aantal = champions.list.Count;
int teller = 0;
int counter = 0;
for (int x = aantal; x != 0; x--)
{
if (values[x - 1] == true)
{
list.Add(champions.getchampbyid(counter + 1));
teller++;
}
counter++;
}
}
}
我的用户控件：
<UserControl x:Class="xxxxx.usercontrols.ucoptions.ucownedchampviewer"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:sp="clr-namespace:xxxxx"
mc:Ignorable="d"
d:DesignHeight="564" d:DesignWidth="350" Loaded="UserControl_Loaded">
<Grid Height="624">
<Grid.Resources>
<Style x:Key="Ownedstyle" TargetType="{x:Type ListViewItem}">
<Setter Property="Background" Value="Red"></Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding strowned}" Value="Yes">
<Setter Property="Background" Value="Green"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</Grid.Resources>
<StackPanel Margin="0,0,0,12">
<StackPanel Orientation="Horizontal" Margin="5">
<TextBox Name="txtclc" Width="250" Margin="2" Text="{Binding Path=strcode ,RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}" />
<Button Name="btnload" Content="Save" Click="btnsave_Click" Width="55" Margin="2"/>
</StackPanel>
<Line Margin="2" />
<StackPanel Orientation="Horizontal" Margin="5" HorizontalAlignment="Stretch" Width="350">
<TextBlock VerticalAlignment="Center">Filter:</TextBlock>
<TextBox Name="txtfilter" Height="30" Grid.Column="0" TextChanged="txtfilter_TextChanged" Margin="5" Width="250" />
<Label Name="lblaantal"></Label>
</StackPanel>
<ListView Name="lsvallchamps" Grid.Column="0" Grid.Row="1" Grid.RowSpan="1" Height="410" Width="auto" ItemContainerStyle="{StaticResource Ownedstyle}" ItemsSource="{Binding Path=clclist ,RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}" >
<ListView.View>
<GridView>
<GridViewColumn Width="60">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Image HorizontalAlignment="Center" VerticalAlignment="Center" Width="50" Height="50" Source="{Binding image}" Stretch="Fill"></Image>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Width="120" DisplayMemberBinding="{Binding name}">
<GridViewColumnHeader Content="name" Tag="name" Click="SortClick"/>
</GridViewColumn>
<GridViewColumn Width="130" DisplayMemberBinding="{Binding strroles}">
<GridViewColumnHeader Content="strroles" Tag="strroles" Click="SortClick" />
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
<Button Content="testknop" Click="Button_Click" />
<Button Content="Hide" Name="btnhide" Width="150" Height="35" Margin="5" Click="btnhide_Click"></Button>
</StackPanel>
</Grid>
</UserControl>
抱歉，代码太多了，但最好是太多代码而不是太少代码。问题是我希望按钮 btnsave 将 txtclc.text 保存到代码中并为其创建一个新列表，（然后列表视图应根据它自动更改，因为它已绑定到它） 但是一旦我使用了代码
private void btnsave_Click(object sender, RoutedEventArgs e)
{
settings.clclist[teller].code = txtclc.Text;
settings.clclist[teller].makelist();
}
它确实改变了它！我可以通过 debug.writeline 看到 clclist 中的值已更改。但是此选项卡中的列表视图不会改变！仅当我转到另一个选项卡，然后返回第一个选项卡时，它才会更改为正确的冠军。甚至还有第二个问题。 O 但是，如果我转到另一个选项卡（用户控件），则 txtclc.text 也会更改为第一个！用户控件上的列表也没有更新，也没有！但是makelist方法应该改变它吗？ 很抱歉这个很长的问题，但是我一直在谷歌上搜索，但这个问题没有运气。
解决方案：
将用户控件中的 Text="{Binding Path=strcode ,RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}" 替换为 Text="{Binding Path=code}"。并将 INotifyPropertyChanged 添加到 clc 类，感谢 Rachel！
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标签： c# wpf binding user-controls datatemplate