C# 使用UserControl时如何实现按钮处理程序?
我正在设计一个应用程序,其中我将有一个模板化的UI格式,它将根据从数据库返回的对象数(<8)枚举TabItems。为了动态生成它们,我创建了一个动态资源,其中包含tab UI中的所有对象,并将资源分配给每个TabItem的content属性。工作得很好,但是现在我不知道如何用这个设置修改UI(和实现处理程序) 我在窗口的xaml中添加了一个临时测试选项卡Item,分配了资源,但是我不能修改窗口中的任何项目 我应该使用用户控件以外的其他东西吗?这些选项卡上的功能完全相同,只是需要通过选项卡浏览不同的数据集。但数据类型将完全相同 编辑3:C# 使用UserControl时如何实现按钮处理程序?,c#,wpf,xaml,C#,Wpf,Xaml,我正在设计一个应用程序,其中我将有一个模板化的UI格式,它将根据从数据库返回的对象数(
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:<Redacted>.WPF"
xmlns:ToggleSwitch="clr-namespace:ToggleSwitch;assembly=ToggleSwitch" x:Class="<Redacted>.WPF.MainWindow"
mc:Ignorable="d"
Title="<Redacted>" Height="704" Width="1203.3">
<Window.Resources>
<UserControl x:Key="RemoteSiteUserControl">
<Grid Background="#FFE5E5E5">
<Grid.RowDefinitions>
<RowDefinition Height="334*"/>
<RowDefinition Height="257*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="10*"/>
<ColumnDefinition Width="31*"/>
</Grid.ColumnDefinitions>
<ListView x:Name="listViewMachines" HorizontalAlignment="Left" Height="252" Margin="10,34,0,0" VerticalAlignment="Top" Width="261">
<ListView.View>
<GridView>
<GridViewColumn/>
</GridView>
</ListView.View>
</ListView>
<Label x:Name="lblMachines" Content="Machines:" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="26" Width="122"/>
<Label x:Name="lblNotifications" Content="Notification Queue:" Grid.Column="1" HorizontalAlignment="Left" Height="32" Margin="10,55,0,0" Grid.Row="1" VerticalAlignment="Top" Width="167"/>
<ListView x:Name="listViewNotifications" Grid.Column="1" HorizontalAlignment="Left" Height="160" Margin="23,87,0,0" Grid.Row="1" VerticalAlignment="Top" Width="855">
<ListView.View>
<GridView>
<GridViewColumn/>
</GridView>
</ListView.View>
</ListView>
<Button x:Name="btnAddMachine" Content="Add" HorizontalAlignment="Left" Margin="10,300,0,0" VerticalAlignment="Top" Width="75" Click="btnAddMachine_Click"/>
<Button x:Name="btnModifyMachine" Content="Modify" HorizontalAlignment="Left" Margin="104,300,0,0" VerticalAlignment="Top" Width="75" Click="btnModifyMachine_Click"/>
<Button x:Name="btnDelete" Content="Delete" HorizontalAlignment="Left" Margin="196,300,0,0" VerticalAlignment="Top" Width="75" Click="btnDelete_Click"/>
<Label x:Name="lblIpAddress" Content="Ip Address:" HorizontalAlignment="Left" Height="23" Margin="49,81,0,0" VerticalAlignment="Top" Width="62" FontSize="10.667" RenderTransformOrigin="0.784,0.435" Grid.Row="1"/>
<Label x:Name="lblMachineName" Content="Machine Name:" HorizontalAlignment="Left" Height="23" Margin="28,25,0,0" VerticalAlignment="Top" Width="83" FontSize="10.667" RenderTransformOrigin="0.602,0.565" Grid.Row="1"/>
<Label x:Name="lblAlias" Content="Alias:" HorizontalAlignment="Left" Height="23" Margin="77,53,0,0" VerticalAlignment="Top" Width="34" FontSize="10.667" Grid.Row="1"/>
<TextBox x:Name="txtMachineName" HorizontalAlignment="Left" Height="23" Margin="116,25,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="136" FontSize="10.667" FontFamily="Arial" Grid.Row="1" IsReadOnly="True" IsReadOnlyCaretVisible="True"/>
<TextBox x:Name="txtIpAddress" HorizontalAlignment="Left" Height="23" Margin="116,81,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="136" Grid.Row="1" IsReadOnly="True" IsReadOnlyCaretVisible="True"/>
<TextBox x:Name="txtAlias" HorizontalAlignment="Left" Height="23" Margin="116,53,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="136" FontSize="10.667" FontFamily="Arial" Grid.Row="1" IsReadOnly="True" IsReadOnlyCaretVisible="True"/>
<Label x:Name="lblStatus" Content="Status:" Grid.Column="1" HorizontalAlignment="Left" Margin="23,32,0,0" VerticalAlignment="Top" Width="53" FontSize="14.667"/>
<Ellipse Name="ellipseStatus" Grid.Column="1" Fill="Red" HorizontalAlignment="Left" Height="18" Margin="100,37,0,0" Stroke="Black" VerticalAlignment="Top" Width="18"/>
<Label x:Name="lblPerfCounters" Content="Performance Counters:" Grid.Column="1" HorizontalAlignment="Left" Height="30" Margin="532,23,0,0" VerticalAlignment="Top" Width="161" FontSize="14.667"/>
<ToggleSwitch:HorizontalToggleSwitch Name="togglePerfCounters" Grid.Column="1" HorizontalAlignment="Left" Margin="747,31,0,0" VerticalAlignment="Top" Height="19" Width="76"/>
<Label x:Name="lvlServices" Content="Services:" Grid.Column="1" HorizontalAlignment="Left" Height="30" Margin="23,84,0,0" VerticalAlignment="Top" Width="74" FontSize="14.667"/>
<ListView x:Name="listViewServices" Grid.Column="1" HorizontalAlignment="Left" Height="229" Margin="23,114,0,0" VerticalAlignment="Top" Width="409" Grid.RowSpan="2">
<ListView.View>
<GridView>
<GridViewColumn/>
</GridView>
</ListView.View>
</ListView>
<Button x:Name="btnDeleteServiceMonitor" Content="Delete" HorizontalAlignment="Left" Margin="357,22,0,0" VerticalAlignment="Top" Width="75" Grid.Column="1" Grid.Row="1" Click="btnDeleteServiceMonitor_Click"/>
<Button x:Name="btnAddServiceMonitor" Content="Add" HorizontalAlignment="Left" Margin="266,22,0,0" VerticalAlignment="Top" Width="75" Grid.Column="1" Grid.Row="1" Click="btnAddServiceMonitor_Click"/>
<TextBox x:Name="txtCpuTimer" HorizontalAlignment="Left" Height="30" Margin="687,73,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="136" FontSize="10.667" FontFamily="Arial" IsReadOnly="True" IsReadOnlyCaretVisible="True" Grid.Column="1"/>
<Label x:Name="lblCpuTimer" Content="Cpu Timer(sec):" Grid.Column="1" HorizontalAlignment="Left" Height="30" Margin="588,73,0,0" VerticalAlignment="Top" Width="94"/>
<Label x:Name="lblCpuUsage" Content="Cpu Usage(%):" Grid.Column="1" HorizontalAlignment="Left" Height="30" Margin="593,114,0,0" VerticalAlignment="Top" Width="94" RenderTransformOrigin="0.734,0.4"/>
<TextBox x:Name="txtCpuUsage" HorizontalAlignment="Left" Height="30" Margin="687,114,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="136" FontSize="10.667" FontFamily="Arial" IsReadOnly="True" IsReadOnlyCaretVisible="True" Grid.Column="1"/>
<Label x:Name="lblCpuPerformance" Content="CPU Performance:" Grid.Column="1" HorizontalAlignment="Left" Height="33" Margin="543,200,0,0" VerticalAlignment="Top" Width="144" FontSize="14.667"/>
<Label x:Name="labelDescription" Content="Additional Information:" HorizontalAlignment="Left" Margin="10,109,0,0" Grid.Row="1" VerticalAlignment="Top"/>
<TextBox x:Name="txtDescription" HorizontalAlignment="Left" Height="107" Margin="10,140,0,0" Grid.Row="1" TextWrapping="Wrap" VerticalAlignment="Top" Width="261"/>
</Grid>
</UserControl>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="27*"/>
<RowDefinition Height="619*"/>
<RowDefinition Height="27*"/>
</Grid.RowDefinitions>
<Menu x:Name="menu" HorizontalAlignment="Stretch" Margin="0,0,0,0" Grid.RowSpan="1" VerticalAlignment="Stretch">
<MenuItem Header="_File" x:Name="menuFile" HorizontalAlignment="Center" Height="27" Width="28">
</MenuItem>
<MenuItem Header="_Edit" x:Name="menuEdit" HorizontalAlignment="Center"/>
<MenuItem Header="_Tools" x:Name="menuTools" HorizontalAlignment="Center">
<MenuItem Header="_Manage Remote Sites" x:Name="menuManageRemoteSItes" HorizontalAlignment="Left"/>
</MenuItem>
<MenuItem Header="_Windows" x:Name="menuWindows" HorizontalAlignment="Center"/>
<MenuItem Header="_Reports" x:Name="menuReports" HorizontalAlignment="Center"/>
<MenuItem Header="_Help" x:Name="menuHelp" HorizontalAlignment="Center"/>
</Menu>
<TabControl x:Name="tabControl" HorizontalAlignment="Stretch" Margin="0,0,0,0" Grid.Row="1" VerticalAlignment="Stretch" SelectionChanged="tabControl_SelectionChanged">
<TabItem Header="Test" Content="{DynamicResource RemoteSiteUserControl}"/>
</TabControl>
</Grid>
为了解决设计中的直接问题,我将避免单击事件,而是使用带有DataContext的命令。您可以将TabItem的数据上下文分配给单独的C#类(视图模型),然后绑定到资源中的命令
<TabItem DataContext="{Binding MyViewModelDataContext}" />
请注意,MyViewModelDataContext必须在.xaml.cs代码中实例化为公共属性,以便可以对其进行绑定
然后,您可以在模板中使用命令,因为它是一个绑定:
<Button Command="{Binding MyCommand}" />
其中,该命令在MyViewModelDataContext中实现
下面是一个有用的命令概述:
我也使用DevExpress的MVVM框架,它们有一个非常好的命令实现
另外:您的整个XAML代码中没有绑定。阅读装订材料;它会帮助你的。这里有一个很好的链接,为您介绍绑定:
希望能有所帮助。您能在问题中添加代码吗?我们通常不喜欢将代码发布在另一个网站上,如果链接关闭或用户无法访问,那么他们就无法帮助您解决问题。明白。WPF背后的理念是你的应用程序就是你的代码类,你的UI只是一个非常友好的界面,它位于你的类之上。在这里,您使用的是较旧的WinForms方式,将应用程序作为UI对象。也许可以帮助你开始正确的WPF:)这绝对有帮助。问了这个问题后,我退了一步,决定在充实这个客户机设计之前,我应该多读一点关于WPF的内容。谢谢你提供的资源。