當某個單選按鈕被選中時,我想添加或刪除幾個控件到StackPanel
。在發生故障的代碼中創建一些控件
我懷疑設置Slider
控件的前景綁定是錯誤的。
MainWindow.xaml
<StackPanel Name ="Upgrades" VerticalAlignment="Center" HorizontalAlignment="Center">
<RadioButton Name="rb1" Content="Upgrade rb1" />
<RadioButton Name="rb2" Content="Upgrade rb2" />
<RadioButton Name="rb3" Content="Upgrade rb3" />
<RadioButton Name="rb4" Content="Upgrade rb4" IsChecked="True"/>
<RadioButton Name="AllFour" Content="All Four" Checked="AllFour_Checked" Unchecked="AllFour_Unchecked" />
<Button Name="StartUpgrades" Margin="0 0 0 0" Click="StartUpgrades_Click" >Start</Button>
</StackPanel>
<!-- I want to add these controls to the stackpanel before the StartUpgrades Button Control
<Label Name="SelectThreads" HorizontalAlignment="Center">Select Threads</Label>
<Slider Name="SliderThreadAmount" Minimum="1" Maximum="4" TickFrequency="1" IsSnapToTickEnabled="True" Style="{DynamicResource SliderStyle}" Foreground="{DynamicResource SliderSelectionRangeBackgroundBrush}" IsVisibleChanged="SliderThreadAmount_IsVisibleChanged"></Slider>
<Label HorizontalAlignment="Center" Name="SliderThreadValue" BorderBrush="Gray" Content="{Binding ElementName=SliderThreadAmount,Path=Value}"></Label> -->
MainWindow.xaml.cs
private void AllFour_Unchecked(object sender, RoutedEventArgs e)
{
Label label1 = new Label();
label1.HorizontalAlignment = HorizontalAlignment.Center;
Slider sl = new Slider();
sl.Minimum = 1;
sl.Maximum = 4;
sl.TickFrequency = 1;
sl.IsSnapToTickEnabled = true;
sl.SetResourceReference(Control.StyleProperty, "SliderStyle");
sl.Foreground.SetValue(Control.StyleProperty, "SliderSelectionRangeBackgroundBrush");
Label label2 = new Label();
label2.HorizontalAlignment = HorizontalAlignment.Center;
label2.BorderBrush = new SolidColorBrush(Colors.Gray);
label2.Content = "{Binding ElementName=sl,Path=Value}";
Upgrades.Children.Add(label1);
Upgrades.Children.Add(sl);
Upgrades.Children.Add(label2);
}
private void AllFour_Checked(object sender, RoutedEventArgs e)
{
Upgrades.Children.Remove(label1);
Upgrades.Children.Remove(sl);
Upgrades.Children.Remove(label2);
}
怎麼回事?你說你想要什麼,但不是你嘗試過的結果。 –
我收到以下消息:在PresentationCore.dll中發生未處理的異常'System.InvalidOperationException' –
請參閱我編輯的答案。 – mm8