我有几个领域 对于这些字段，我希望列表中的某些行可见或不可见 根据这些领域。
我正在尝试使用IMultiValueConverter，但是，我得到的所有值都是{DependencyProperty.UnsetValue}。
我附上我的代码希望得到帮助 谢谢你的回答。
XAML：
<ListView x:Name="LVGuiCoreBus" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto" MouseDown="LVGui_MouseDown" Grid.Row="1" >
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.Visibility>
<MultiBinding Converter="{StaticResource MultiValueConvertorVisibility}" UpdateSourceTrigger="PropertyChanged">
<Binding ElementName="Source" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
<Binding ElementName="Destination" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
<Binding ElementName="Module" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
<Binding ElementName="Controll" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
<Binding ElementName="Command" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
<Binding ElementName="HSCommand" Path="Visibility" UpdateSourceTrigger="PropertyChanged"/>
</MultiBinding>
</Grid.Visibility>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="70"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="150"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="150"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding DateNTimeStr}" Foreground="Green" Grid.Column="0" />
<TextBlock Text="{Binding Source}" Foreground="{Binding Source,Converter={StaticResource CoreBusPanelModuleColorConverter}}" Grid.Column="2" Background="{ Binding Source, Converter={StaticResource BackGroundFilterConverterBySource}}" />
<TextBlock Text="{Binding Destination}" Foreground="{Binding Destination,Converter={StaticResource CoreBusPanelModuleColorConverter}}" Grid.Column="4" Background="{ Binding Destination, Converter={StaticResource BackGroundFilterConvertorByDestantation}}" />
<TextBlock Text="{Binding Module}" Grid.Column="6" HorizontalAlignment="Center" Background="{ Binding Module, Converter={StaticResource BackGroundFilterByModule}}" />
<TextBlock Text="{Binding Controll}" Grid.Column="8" Background="{ Binding Controll, Converter={StaticResource BackGRoundFilterByControll}}" />
<TextBlock Text="{Binding Command}" Grid.Column="10" HorizontalAlignment="Center" Background="{ Binding Command, Converter={StaticResource BackGroundFilterByCommand}}" />
<TextBlock Text="{Binding HSCommand}" Grid.Column="12" HorizontalAlignment="Center" Background="{ Binding HSCommand, Converter={StaticResource BackGroundFilterByHsCommand}}" />
<TextBlock Text="{Binding Data_Str}" Grid.Column="14"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ContextMenu>
<ContextMenu x:Name="CMMenuCopy">
<MenuItem x:Name="MCICopyLine" Header="Copy Line" Click="MCICopyLine_Click" />
<MenuItem x:Name="MCICopyText" Header="Copy Only Data Array" Click="MCICopyText_Click" />
<MenuItem x:Name="MCIClear" Header="Clear" Click="MCIClear_Click"/>
</ContextMenu>
</ListView.ContextMenu>
</ListView>
转换器实施：
public class MultiValueConvertorVisibility : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
bool x = System.Convert.ToBoolean(values[0]);
if (x)
{
return System.Windows.Visibility.Visible;
}
else
{
return System.Windows.Visibility.Collapsed;
}
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
C＃代码
ObservableCollection<CStrucutreData> _LStructureGUIFile = new
ObservableCollection<CStrucutreData>();
LVGuiCoreBus.ItemsSource = _LStructureGUI;
LVGuiCoreBus.DataContext = _LStructureGUI;
C＃CStrucutreData：
public class CStrucutreData : INotifyPropertyChanged
{
// This method is called by the Set accessor of each property.
// The CallerMemberName attribute that is applied to the optional propertyName
// parameter causes the property name of the caller to be substituted as an argument.
private void OnPropertyChanged([CallerMemberName] string propertyName = "")
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
private string _DateNTimeStr;
/// <summary>
/// Date Time in a string
/// </summary>
public string DateNTimeStr
{
get
{
return _DateNTimeStr;
}
set
{
_DateNTimeStr = value;
OnPropertyChanged("DateNTimeStr");
}
}
private DateTime _DateNTime;
/// <summary>
/// DateTime in DateTime Format
/// </summary>
public DateTime DateNTime
{
get
{
return _DateNTime;
}
set
{
_DateNTime = value;
OnPropertyChanged("DateNTime");
}
}
private byte [] _Data_byte;
/// <summary>
/// Data in bytes array
/// </summary>
public byte[] Data_byte
{
get
{
return _Data_byte;
}
set
{
_Data_byte = value;
OnPropertyChanged("Data_byte");
}
}
private string _Data_Str;
/// <summary>
/// Data in string
/// </summary>
public string Data_Str
{
get
{
return _Data_Str;
}
set
{
_Data_Str = value;
OnPropertyChanged("Data_Str");
}
}
private string _Translation;
/// <summary>
/// a small translation to translate Command
/// </summary>
public string Translation
{
get
{
return _Translation;
}
set
{
_Translation = value;
OnPropertyChanged("Translation");
}
}
private string _Channel;
/// <summary>
/// a small translation to translate Command
/// </summary>
public string Channel
{
get
{
return _Channel;
}
set
{
_Channel = value;
OnPropertyChanged("Channel");
}
}
private string _Source;
/// <summary>
/// Date Time in a string
/// </summary>
public string Source
{
get
{
return _Source;
}
set
{
_Source = value;
OnPropertyChanged("Source");
}
}
private string _Destination;
/// <summary>
/// Date Time in a string
/// </summary>
public string Destination
{
get
{
return _Destination;
}
set
{
_Destination = value;
OnPropertyChanged("Destination");
}
}
private string _Module;
/// <summary>
/// Date Time in a string
/// </summary>
public string Module
{
get
{
return _Module;
}
set
{
_Module = value;
OnPropertyChanged("Module");
}
}
private string _Controll;
/// <summary>
/// Date Time in a string
/// </summary>
public string Controll
{
get
{
return _Controll;
}
set
{
_Controll = value;
OnPropertyChanged("Controll");
}
}
private string _Command;
/// <summary>
/// Date Time in a string
/// </summary>
public string Command
{
get
{
return _Command;
}
set
{
_Command = value;
OnPropertyChanged("Command");
}
}
private string _HSCommand;
/// <summary>
/// Date Time in a string
/// </summary>
public string HSCommand
{
get
{
return _HSCommand;
}
set
{
_HSCommand = value;
OnPropertyChanged("HSCommand");
}
}
/// <summary>
/// init all variables for properties
/// </summary>
public CStrucutreData()
{
_Data_byte = new byte[1];
_Data_Str = "";
_DateNTime = new DateTime();
_DateNTimeStr = "";
_Translation = "";
_Channel = "";
_Source = "";
_Destination = "";
_Module = "";
_Controll = "";
_Command = "";
_HSCommand = "";
}
public event PropertyChangedEventHandler PropertyChanged;
}