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我试图将我的ViewModel中的值绑定到自定义控件。 绑定似乎没有工作。WPF + PRISM：绑定不适用于自定义控件
如果我添加一个常规的TextBlock并应用绑定，我会在TextBlock中的ViewModel中看到定义的值。
3个自定义文本框控件都没有显示来自我的ViewModel的值。 而且，当我点击2个按钮中的任意一个时，我无法到达ViewModel中的断点。
AddAccountViewModel.xaml：
<UserControl
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:Controls="clr-namespace:Client.Infrastructure.Controls;assembly=Client.Infrastructure"
x:Class="Client.Modules.Accounts.Views.AddAccountView"
mc:Ignorable="d">
<Grid Width="400" Height="600">
<Grid.RowDefinitions>
<RowDefinition Height="65"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Controls:Header Title="New Account"/>
<StackPanel Grid.Row="1">
<StackPanel Margin="25">
<Controls:GTextBox Watermark="Title" TextBoxHeight="45" TextBoxWidth="350" FontSize="28"
Foreground="#999999" BorderBrush="#CCCCCC" Tip="e.g. Gmail, Dropbox, LastPass"
Text="{Binding Account.Title, Mode=TwoWay}"/>
<Controls:GTextBox Watermark="Account" TextBoxHeight="45" TextBoxWidth="350" FontSize="28"
Foreground="#999999" BorderBrush="#CCCCCC" Tip="e.g. [email protected]" Margin="0,25,0,0"
Text="{Binding Account.Name, Mode=TwoWay}"/>
<Controls:GTextBox Watermark="Key" TextBoxHeight="45" TextBoxWidth="350" FontSize="28"
Foreground="#999999" BorderBrush="#CCCCCC" Tip="e.g. random characters from the account provider" Margin="0,25,0,0"
Text="{Binding Account.Key, Mode=TwoWay}"/>
<Controls:SignedButton VerticalAlignment="Top" Width="275" Height="45" Foreground="#FFFFFF"
LeftSign="+" Text="Add an Account" TextSize="20" ButtonBackground="#3A5795"
HoverBackground="#C41AD7" HoverOpacity="1" Margin="0,50,0,0" Command="{Binding AddCommand}"/>
<Controls:SignedButton VerticalAlignment="Top" Width="275" Height="45" Foreground="#FFFFFF"
LeftSign="<" Text="Back to Accounts" TextSize="20" ButtonBackground="#666666"
HoverBackground="#0FBDAC" HoverOpacity="1" Margin="0,25,0,0"
Command="{Binding NavigateToMainViewCommand}"/>
</StackPanel>
</StackPanel>
</Grid>
</UserControl>
AddAccountView.xaml.cs：
public partial class AddAccountView : UserControl, IAddAccountView
{
public AddAccountView(IAddAccountViewModel accountViewModel)
{
InitializeComponent();
ViewModel = accountViewModel;
}
public IViewModel ViewModel
{
get { return (IViewModel) DataContext; }
set { DataContext = value; }
}
}
AddAccountViewModel：
public class AddAccountViewModel : ViewModel, IAddAccountViewModel
{
private Account _account;
public AddAccountViewModel()
{
AddCommand = new DelegateCommand(Add, CanAdd);
NavigateToMainViewCommand = new DelegateCommand(Navigate, CanNavigate);
Account = new Account(Guid.NewGuid()) {Title = "Test", Name = "[email protected]", Key = "12345"};
}
public Account Account
{
get { return _account; }
set
{
_account = value;
OnPropertyChanged("Account");
}
}
public DelegateCommand AddCommand { get; private set; }
public DelegateCommand NavigateToMainViewCommand { get; private set; }
private void Add()
{
Account.Title = "Saved";
}
private bool CanAdd()
{
return string.IsNullOrEmpty(Account.Error);
}
private bool CanNavigate()
{
return true;
}
private void Navigate()
{
int i = 0;
}
}
个GTextBox.xaml：
<UserControl
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:xctk="http://schemas.xceed.com/wpf/xaml/toolkit" xmlns:Converters="clr-namespace:Client.Infrastructure.Converters" x:Class="Client.Infrastructure.Controls.GTextBox"
mc:Ignorable="d"
DataContext="{Binding RelativeSource={RelativeSource Self}}">
<UserControl.Resources>
<Converters:CaseConverter x:Key="CaseConverter"/>
</UserControl.Resources>
<StackPanel>
<xctk:WatermarkTextBox FontFamily="{DynamicResource OpenSans}" Watermark="{Binding Watermark}"
Text="{Binding Text}"
Width="{Binding TextBoxWidth}" Height="{Binding TextBoxHeight}"
FontSize="{Binding FontSize}" Foreground="{Binding Foreground}" BorderBrush="{Binding BorderBrush}" Padding="10,3">
<xctk:WatermarkTextBox.WatermarkTemplate>
<DataTemplate>
<ContentControl Content="{Binding Converter={StaticResource CaseConverter}, Mode=OneWay}"/>
</DataTemplate>
</xctk:WatermarkTextBox.WatermarkTemplate>
</xctk:WatermarkTextBox>
<TextBlock Text="{Binding Tip}" Foreground="#999999" FontSize="13" FontFamily="{DynamicResource OpenSans}"
TextOptions.TextFormattingMode="Display" Margin="10,5,0,0"/>
</StackPanel>
</UserControl>
GTextBox.xaml.cs：
public partial class GTextBox : UserControl
{
public static DependencyProperty TextBoxHeightProperty =
DependencyProperty.Register("TextBoxHeight", typeof (double), typeof (GuardianTextBox));
public static DependencyProperty TextBoxWidthProperty =
DependencyProperty.Register("TextBoxWidth", typeof (double), typeof (GuardianTextBox));
public static DependencyProperty TextProperty =
DependencyProperty.Register("Text", typeof (string), typeof (GuardianTextBox));
public static DependencyProperty TipProperty =
DependencyProperty.Register("Tip", typeof (string), typeof (GuardianTextBox));
public static DependencyProperty WatermarkProperty =
DependencyProperty.Register("Watermark", typeof (string), typeof (GuardianTextBox));
public GTextBox()
{
InitializeComponent();
}
public string Text
{
get { return (string) GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}
public double TextBoxHeight
{
get { return (double) GetValue(TextBoxHeightProperty); }
set { SetValue(TextBoxHeightProperty, value); }
}
public double TextBoxWidth
{
get { return (double) GetValue(TextBoxWidthProperty); }
set { SetValue(TextBoxWidthProperty, value); }
}
public string Tip
{
get { return (string) GetValue(TipProperty); }
set { SetValue(TipProperty, value); }
}
public string Watermark
{
get { return (string) GetValue(WatermarkProperty); }
set { SetValue(WatermarkProperty, value); }
}
}
SignedButton.xaml：
<UserControl x:Class="Client.Infrastructure.Controls.SignedButton"
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"
mc:Ignorable="d"
d:DesignHeight="45" d:DesignWidth="245"
DataContext="{Binding RelativeSource={RelativeSource Self}}">
<UserControl.Resources>
<Storyboard x:Key="OnMouseEnter">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="grid">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.25" Value="{Binding HoverOpacity}"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="grid">
<EasingColorKeyFrame KeyTime="0" Value="{Binding ButtonBackground}"/>
<EasingColorKeyFrame KeyTime="0:0:0.25" Value="{Binding HoverBackground}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="OnMouseLeave">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="grid">
<EasingDoubleKeyFrame KeyTime="0" Value="{Binding HoverOpacity}"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.25" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="grid">
<EasingColorKeyFrame KeyTime="0" Value="{Binding HoverBackground}"/>
<EasingColorKeyFrame KeyTime="0:0:0.25" Value="{Binding ButtonBackground}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
<UserControl.Triggers>
<EventTrigger RoutedEvent="Mouse.MouseEnter">
<BeginStoryboard Storyboard="{StaticResource OnMouseEnter}"/>
</EventTrigger>
<EventTrigger RoutedEvent="Mouse.MouseLeave">
<BeginStoryboard Storyboard="{StaticResource OnMouseLeave}"/>
</EventTrigger>
</UserControl.Triggers>
<Grid x:Name="grid" Cursor="Hand" Background="{Binding ButtonBackground}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="50"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding LeftSign}"
FontFamily="{DynamicResource OpenSans}" FontSize="{Binding TextSize}"
HorizontalAlignment="Center" VerticalAlignment="Center"
TextOptions.TextFormattingMode="Display"/>
<TextBlock Text="{Binding Text}"
FontFamily="{DynamicResource OpenSans}" FontSize="{Binding TextSize}"
HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="1"
TextOptions.TextFormattingMode="Display"/>
<TextBlock Text="{Binding RightSign}"
FontFamily="{DynamicResource OpenSans}" FontSize="{Binding TextSize}"
HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="2"
TextOptions.TextFormattingMode="Display"/>
</Grid>
</UserControl>
SignedButton.xaml.cs：
public partial class SignedButton : UserControl
{
public static DependencyProperty ButtonBackgroundProperty =
DependencyProperty.Register("ButtonBackground", typeof (string), typeof (SignedButton));
public static DependencyProperty CommandParameterProperty =
DependencyProperty.Register("CommandParameter", typeof (object), typeof (SignedButton));
public static DependencyProperty CommandProperty =
DependencyProperty.Register("Command", typeof (ICommand), typeof (SignedButton));
public static DependencyProperty HoverBackgroundProperty =
DependencyProperty.Register("HoverBackground", typeof (string), typeof (SignedButton));
public static DependencyProperty HoverOpacityProperty =
DependencyProperty.Register("HoverOpacity", typeof (double), typeof (SignedButton));
public static DependencyProperty LeftSignProperty =
DependencyProperty.Register("LeftSign", typeof (string), typeof (SignedButton));
public static DependencyProperty RightSignProperty =
DependencyProperty.Register("RightSign", typeof (string), typeof (SignedButton));
public static DependencyProperty TextProperty =
DependencyProperty.Register("Text", typeof (string), typeof (SignedButton));
public static DependencyProperty TextSizeProperty =
DependencyProperty.Register("TextSize", typeof (double), typeof (SignedButton));
public SignedButton()
{
InitializeComponent();
MouseUp += SignedButtonMouseUp;
}
public string ButtonBackground
{
get { return (string) GetValue(ButtonBackgroundProperty); }
set { SetValue(ButtonBackgroundProperty, value); }
}
public ICommand Command
{
get { return (ICommand) GetValue(CommandProperty); }
set { SetValue(CommandProperty, value); }
}
public object CommandParameter
{
get { return GetValue(CommandParameterProperty); }
set { SetValue(CommandParameterProperty, value); }
}
public string HoverBackground
{
get { return (string) GetValue(HoverBackgroundProperty); }
set { SetValue(HoverBackgroundProperty, value); }
}
public double HoverOpacity
{
get { return (double) GetValue(HoverOpacityProperty); }
set { SetValue(HoverOpacityProperty, value); }
}
public string LeftSign
{
get { return (string) GetValue(LeftSignProperty); }
set { SetValue(LeftSignProperty, value); }
}
public string RightSign
{
get { return (string) GetValue(RightSignProperty); }
set { SetValue(RightSignProperty, value); }
}
public string Text
{
get { return (string) GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}
public double TextSize
{
get { return (double) GetValue(TextSizeProperty); }
set { SetValue(TextSizeProperty, value); }
}
private void SignedButtonMouseUp(object sender, MouseButtonEventArgs e)
{
if (CommandParameter != null) Command.Execute(CommandParameter);
}
}