如何在TabItem加载上初始化TabItem内容?
本文关键字:TabItem 初始化 内容 加载 | 更新日期: 2023-09-27 18:05:30
是否有一种方法来初始化制表符内容在制表符加载?我有一个问题,当Tab被创建时,它不会立即初始化它的组件。只有当我点击选项卡时,内容才会显示出来。
<TabControl
ItemsSource="{Binding Items}">
<TabControl.ItemTemplate>
<DataTemplate>
<DockPanel>
<TextBlock Text="{Binding TabName}"><TextBlock.Background><SolidColorBrush /></TextBlock.Background></TextBlock>
<Button Name="btnDelete" DockPanel.Dock="Right" Margin="5,0,0,0" Padding="0" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type TabItem}}, Path=Name}" BorderBrush="#00000000">
<Image Source="/WPF_AccApp;component/Images/11.gif" Height="11" Width="11"></Image>
</Button>
<DockPanel.Background>
<SolidColorBrush />
</DockPanel.Background>
</DockPanel>
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<DataTemplate>
<views:TabItemView />
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
按钮点击事件
private void AddInvoice_Click(object sender, RoutedEventArgs e)
{
count++;
string s = string.Format("Tab {0}", count);
mainViewModel.Items.Add(new ItemViewModel(s));
this.DataContext = mainViewModel;
if (count == 1)
{
//this is as work around
// mainViewModel.Items.Add(new ItemViewModel(s));
// mainViewModel.Items.RemoveAt(1);
}
}
找到解决方案https://social.msdn.microsoft.com/Forums/vstudio/en-US/8043441a-95bb-4f70-b64c-a76f89980068/tabcontrol-getting-the-work-done-in-viewmodel-when-selectionchanged?forum=wpf
您需要添加Selected Tab Index属性并绑定到TabControl