C# 将值绑定到wpf中的数据模板listbox itemtemplate中的标签

XAML

---

您已经绑定到视图模型属性

hrvalueinitially

。只需更改该属性的值。

hrvalueinitially

是如何定义的？我更改了属性值。最初，hrvalueinitially声明为全局变量。类似于double hrvalueinitially；静止的嗯，这对装订没什么好处。如何定义索引列表？最好将属性代码编辑到问题中，如果列表中的项目具有特定类型，请包含类型定义的相关部分。

<ListBox ItemsSource="{Binding ListOfIndexes}"   HorizontalContentAlignment="Left"  x:Name="lstbxindex" SelectionMode="Extended" Foreground="White" FontSize="20px" Height="201" BorderBrush="#555555" Margin="80,40,0,0" VerticalAlignment="Top" Width="282" Background="#555555" >
     <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal" >
                  <Label x:Name="lblhr"  Height="40px" Width="80px" Content="{Binding Path=hrvalueinitially}" FontSize="20px" HorizontalAlignment="Left" Background="#555555"  Foreground="White"></Label>
                  <TextBlock x:Name="items"  Text="{Binding}" Margin="35,0,0,0"></TextBlock>
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

 private void dispatcherTimer_Tick(object sender, EventArgs e)
 {
    //check the listbox items is selected or not 
    if (lstbxindex.SelectedIndex > 0)
    {
        if (dispatcherTimer.Interval == TimeSpan.FromSeconds(3))
        {
            double hrvalue = 0.25 + hrvalueinitially;

            //lblhr.Content= hrvalueinitially;
            hrvalueinitially = hrvalue;
        }

     }
 }