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C＃WPF路由事件
所以我編碼具有（現在）的應用程序，其中我分組一些其它元件的一個用戶控制。我想在用戶控件內的屬性更改時更新視圖。我試圖實現的inotify，它似乎工作（我已經做了同樣的方式在我的主要形式，有它的罰款）。還嘗試在XAML中設置綁定，但無法以某種方式通過它。我想我必須實現路由事件，但我不確定是否以及如何在這種情況下。從用戶控制的MainForm
我注意到那是什麼，我可以從OnPropertyChanged方法去除一些東西，但如果我想刪除目前未分配相應的事件，它指出我沒有實現的inotify。從用戶控制
XAML：
<UserControl x:Class="Tool_WPF.frmLogin"
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"
xmlns:local="clr-namespace:Fever_Tool_WPF"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<StackPanel>
<Label Name="labLogin" HorizontalAlignment="Center" MaxWidth="150">
<Style>
<Style.Triggers>
<DataTrigger Binding="{Binding Path=LoginState, ElementName=labLogin}" Value="1">
<Setter Property="Label.Content" Value="Success"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Label>
<Label HorizontalAlignment="Center">Forum username</Label>
<TextBox x:Name="tbUser" Width="150"></TextBox>
<Label HorizontalAlignment="Center">Forum password</Label>
<PasswordBox x:Name="tbPassword" Width="150"></PasswordBox>
<Button x:Name="cmdLogin" HorizontalAlignment="Center" Margin="10" Width="150" Click="cmdLogin_Click">Login</Button>
</StackPanel>
</Grid>
背後用於用戶控制代碼（屬性類）
public class StateLogin : INotifyPropertyChanged
{
private int _loginState; // helping variable to trigger login state change
public event PropertyChangedEventHandler PropertyChanged;
public int LoginState
{
get { return _loginState; }
set
{
_loginState = value;
OnPropertyChanged("LoginState");
}
}
protected void OnPropertyChanged(string name)
{
new PropertyChangedEventArgs(name);
}
}
一些主窗口XAML代碼的
<RibbonWindow
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:Fever_Tool_WPF"
xmlns:Primitives="clr-namespace:System.Windows.Controls.Ribbon.Primitives;assembly=System.Windows.Controls.Ribbon" x:Class="Fever_Tool_WPF.MainWindow"
mc:Ignorable="d"
Title="MainWindow" Height="589" Width="896"
Initialized="MainWindow_Initialized">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Ribbon x:Name="ribbonMain">
<Ribbon.HelpPaneContent>
<RibbonButton SmallImageSource="Icons/MainWindow/help.ico"/>
</Ribbon.HelpPaneContent>
<Ribbon.QuickAccessToolBar>
<RibbonQuickAccessToolBar/>
</Ribbon.QuickAccessToolBar>
<Ribbon.ApplicationMenu>
<RibbonApplicationMenu SmallImageSource="Icons/MainWindow/BlogHomePage.ico">
<RibbonApplicationMenuItem Header="Information" ImageSource="Icons/MainWindow/Info.ico" Click="RibInfo_Click"/>
</RibbonApplicationMenu>
</Ribbon.ApplicationMenu>
<RibbonTab x:Name="rLogin" Header="Login" Visibility="Visible"/>
<RibbonTab x:Name="rMPL" Header="MPL"/>
</Ribbon>
<local:frmLogin x:Name="frmLogin" Margin="10, 10, 10, 10" VerticalAlignment="Center" HorizontalAlignment="Center" Grid.Row="1" Visibility="Visible"/>
<StatusBar DockPanel.Dock="Bottom" MinHeight="10" MaxHeight="20" Grid.Row="2">
<StatusBarItem DockPanel.Dock="Right">
<Image>
<Image.Style>
<Style>
<Style.Triggers>
<DataTrigger Binding="{Binding Ping}" Value="false">
<Setter Property="Image.Source" Value="Icons/MainWindow/StatusOffline_stop_32x.png"/>
<Setter Property="Image.ToolTip" Value="Can't ping the server."/>
</DataTrigger>
<DataTrigger Binding="{Binding Ping}" Value="true">
<Setter Property="Image.Source" Value="Icons/MainWindow/StatusOK_32x.png"/>
<Setter Property="Image.ToolTip" Value="Successfully pinged the server."/>
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
</StatusBarItem>
</StatusBar>
</Grid>
至於說，我想我的路由上有所缺失（在所有未布^^），有人對這個想法？
你應該調用你的'PropertyChanged'事件，而不僅僅是創建事件參數;） – lokusking