Question

我有一个包含一些控件的网格，我希望将控件的Isenabled属性绑定到网格的可见性属性。因此，如果网格是隐藏/折叠的，我希望禁用所有控件（或至少是文本框），并在网格可见的情况下启用它们。

<Grid x:Name="fItem" Visibility="hidden" HorizontalAlignment="Left" Height="43" Margin="10,73,0,0" VerticalAlignment="Top" Width="669">
                    <TextBox x:Name="fJm" HorizontalAlignment="Left" Height="23" Margin="35,9,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="54"/>
                    <Label x:Name="label_Copy" Content="J.m." HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top"/>
                    <Button x:Name="button" Content="Roba" HorizontalAlignment="Left" Margin="94,10,0,0" VerticalAlignment="Top" Width="79"/>
                    <TextBox x:Name="fNaziv" HorizontalAlignment="Left" Height="23" Margin="178,9,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="302"/>
                    <Label x:Name="label1" Content="Pg" HorizontalAlignment="Left" Margin="485,10,0,0" VerticalAlignment="Top"/>
                    <TextBox x:Name="fPg" Height="23" Margin="503,9,0,0" TextWrapping="Wrap" VerticalAlignment="Top" HorizontalAlignment="Left" Width="22"/>
                    <Label x:Name="label1_Copy" Content="Cijena:" HorizontalAlignment="Left" Margin="530,9,0,0" VerticalAlignment="Top"/>
                    <TextBox x:Name="fCijena" Height="23" Margin="570,8,0,0" TextWrapping="Wrap" VerticalAlignment="Top" HorizontalAlignment="Left" Width="78"/>
                </Grid>

Answer 1

只需将以下属性添加到要启用禁用的控件中即可。

IsEnabled="{Binding ElementName=fItem, Path=Visibility, Converter={StaticResource visibilityToBoolConverter}}"

还要添加一个新的转换器文件，这里是转换器的代码

 public class VisibilityToBoolConverter: IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        var visibility = (Visibility) value;
        if (visibility == Visibility.Collapsed || visibility == Visibility.Hidden)
            return false;
        return true;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

在您的xaml文件中也添加以下行。

<Window.Resources>
    <local:VisibilityToBoolConverter x:Key="visibilityToBoolConverter" ></local:VisibilityToBoolConverter>
</Window.Resources>

应该可以。如果您还有其他问题，请在评论中让我知道。

顺便说一下，您的代码的一个问题是，当gird隐藏/折叠时，您将无法看到控件，因为它们是您所在位置的网格的子代。

将启用/禁用的属性绑定到网格的可见性

1 个答案: