Нажмите на кнопку в приложении WPF

Question

У меня есть этот фрагмент кода:

<Window 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:external="clr-namespace:ToggleSwitch;assembly=ToggleSwitch" 
     xmlns:modern="clr-namespace:Tools.Views.New_Project" 
     xmlns:Controls="clr-namespace:Assergs.Windows.Controls;assembly=Assergs.Windows" 
     x:Class="Tools.FirstInterface" 
     Title="Nouveau projet" Height="Auto" Width="Auto" 
    WindowStyle="None" 
     > 

    <Grid > 
     <DockPanel> 
     <Grid DockPanel.Dock="Bottom" Height="38" VerticalAlignment="Bottom" Background="LightGray" > 
     <Button Content="Annuler" Background="White" HorizontalAlignment="Right" Width="80" Height="22" VerticalAlignment="Bottom" Margin="0,0,0,8" BorderBrush="CadetBlue" BorderThickness="2" FontWeight="Bold" FontFamily="Times New Roman" /> 
     <Button Content="Suivant >>" Background="#FFF9F7F7" Margin="0,0,94,8" HorizontalAlignment="Right" Width="81" Height="22" VerticalAlignment="Bottom" RenderTransformOrigin="0.5,0" BorderBrush="CadetBlue" BorderThickness="2" FontFamily="Times New Roman" FontWeight="Bold" Click="Button_Click_4"/> 
     <Button Content="&lt;&lt; Précédent" Background="White" Margin="0,0,180,8" HorizontalAlignment="Right" Width="82" Height="22" VerticalAlignment="Bottom" BorderBrush="CadetBlue" BorderThickness="2" FontFamily="Times New Roman" FontWeight="Bold"/> 

     </Grid> 
      <UserControl x:Name="container"></UserControl> 
     </DockPanel> 
    </Grid> 
</Window> 

Проблема заключается в том, что кнопки в сетке не кликабельны !!! даже я добавлю этот метод в код позади:

private void Button_Click_4(object sender, RoutedEventArgs e) 
     { 
      MessageBox.Show("hello world!!"); 
     } 

Когда я нажимаю кнопку, ничего не происходит.

Редактировать Я думаю, что проблема возникает из пользовательского элемента управления

<UserControl x:Class="Tools.Views.New_Project.TypeOfProject" 
      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" 

      > 
    <Grid > 
     <DockPanel HorizontalAlignment="Left" Width="2132" Margin="0,0,-1163,-684" Height="828" VerticalAlignment="Top" > 
      <Expander Header="Positionnement" VerticalAlignment="Top" DockPanel.Dock="Left" BorderThickness="4" Margin="0,10,0,0" FontWeight="Bold" FontStyle="Italic" FontSize="14" FontFamily="Times New Roman"> 
       <DockPanel> 
        <Label Height="28" Margin="10,10,10,0" Cursor="Hand" Content="Positionnement 2D" DockPanel.Dock="Top" MouseDoubleClick="Label_MouseDoubleClick_1" MouseUp="Label_MouseDoubleClick_1" FontWeight="Normal" FontStyle="Italic" FontSize="12" FontFamily="Times New Roman"/> 
        <Label Height="28" Margin="10,10,10,0" Cursor="Hand" Content="Positionnement 3D" DockPanel.Dock="Bottom" MouseDoubleClick="Label_MouseDoubleClick_2" MouseUp="Label_MouseDoubleClick_2" FontWeight="Normal" FontStyle="Italic" FontSize="12" FontFamily="Times New Roman"/> 

       </DockPanel> 
      </Expander> 
      </DockPanel> 
     <DockPanel HorizontalAlignment="Left" Width="2132" Margin="0,113,-1163,-729" Height="760" VerticalAlignment="Top" > 
      <Expander Header="Métrologie" VerticalAlignment="Top" DockPanel.Dock="Left" BorderThickness="4" Margin="0,10,0,0" FontFamily="Times New Roman" FontSize="14" FontWeight="Bold" FontStyle="Italic"> 
       <DockPanel> 
        <Label Height="28" Margin="10,10,10,0" Cursor="Hand" Content="Métrologie1D" DockPanel.Dock="Bottom" MouseDoubleClick="Label_MouseDoubleClick_3" MouseUp="Label_MouseDoubleClick_3" FontWeight="Normal" FontStyle="Italic" FontSize="12" FontFamily="Times New Roman"/> 
        <Label Height="28" Margin="10,10,10,0" Cursor="Hand" Content="Métrologie2D" DockPanel.Dock="Bottom" MouseDoubleClick="Label_MouseDoubleClick_3" MouseUp="Label_MouseDoubleClick_3" FontWeight="Normal" FontStyle="Italic" FontSize="12" FontFamily="Times New Roman"/> 
       </DockPanel> 
      </Expander> 
     </DockPanel> 
     <DockPanel HorizontalAlignment="Left" Width="2138" Margin="-119,220,-1050,-875" Height="799" VerticalAlignment="Top" > 

      <Expander Header="Classification" BorderThickness="4" Margin="0,10,0,0" HorizontalAlignment="Right" Width="2016" FontFamily="Times New Roman" FontSize="14" FontWeight="Bold" FontStyle="Italic" Height="234" VerticalAlignment="Top" IsExpanded="True"> 

      </Expander> 
    </DockPanel> 
     <GroupBox Header="" Height="182" VerticalAlignment="Top" Margin="219,38,0,-76" HorizontalAlignment="Left" Width="402"/> 
     <Label Margin="248,79,-66,31" Cursor="Hand" Content="Algorithme1" DockPanel.Dock="Right" x:Name="algo1"/> 
     <Label Margin="248,161,-61,-47" Cursor="Hand" Width="Auto" Content="Algorithme2" DockPanel.Dock="Right" x:Name="algo2" /> 
     <Label Margin="248,118,-66,-12" Cursor="Hand" Width="Auto" Content="Algorithme3" DockPanel.Dock="Right" x:Name="algo3"/> 
     <GroupBox Header="Présentation de type du programme" Height="182" VerticalAlignment="Top" Margin="621,38,0,-76" FontWeight="Bold" FontStyle="Italic" FontSize="14" FontFamily="Times New Roman"/> 
     <Label Content="dddddd" Margin="626,76,0,-76"/> 
     <GroupBox Header="" Margin="219,220,0,-280" Height="204" VerticalAlignment="Top"> 
      <Label Content="Nom: " HorizontalAlignment="Left" Height="29" VerticalAlignment="Top" Width="87" Margin="0,39,0,0"/> 

     </GroupBox> 
     <Label Content="Emplacement: " HorizontalAlignment="Left" Height="35" VerticalAlignment="Top" Width="99" Margin="224,330,0,-221"/> 
     <TextBox Margin="321,276,243,-155" Height="23" VerticalAlignment="Top"/> 
     <TextBox Margin="323,330,241,-209" Height="23" VerticalAlignment="Top"/> 
     <Button Name="browser" Content="Parcourir...." Height="23" VerticalAlignment="Top" Margin="774,330,108,-209"/> 
    </Grid> 
</UserControl> 

1. Почему?
2. Как я могу это исправить?

Answer 1

Этот код работает нормально. Повторите проверку кода на предмет ошибок. Я тестировал ваш код, и он работал нормально. Там может быть какая-то другая проблема. У меня есть другие коды, которые вы написали.