我正在尝试使用WPF和C#将TextBlock的可见性链接到一个布尔属性,该属性也链接到复选框。在同一XAML文件的两个不同部分中都有以下代码(一个部分是概述,另一个部分是设置)。我非常新手,正在学习过程中。目前,无论IsSecondaryMessageFilePath的值如何,TextBlock始终可见。
<TextBlock Name="secondaryfolderinfo" Foreground="Red">
<ContentControl Content="Secondary message folder" Foreground ="Black" />
<ContentControl Content = "{Binding Path=SecondaryMessageFilePath}" ContentStringFormat="" ClipToBounds="False"></ContentControl>
<ContentControl Content = " "></ContentControl>
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsSecondaryMessageFilePath}" Value="True">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
在下面,我有:
<CheckBox IsChecked="{Binding Path=IsSecondaryMessageFilePath, Mode=TwoWay}"
Name="SecondaryPathCheckBox"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Margin="320,7,0,0">Save additional locations</CheckBox>
最后,在代码后台,我有以下内容:
public bool IsSecondaryMessageFilePath
{
get { return _isSecondaryMessageFilePath; }
set
{
if (_isSecondaryMessageFilePath != value)
{
_isSecondaryMessageFilePath = value;
OnPropertyChanged("IsSecondaryMessageFilePath");
}
}
}
private bool _isSecondaryMessageFilePath;
public string SecondaryMessageFilePath
{
get { return _secondaryMessageFilePath; }
set
{
if (_secondaryMessageFilePath != value)
{
_secondaryMessageFilePath = value;
OnPropertyChanged("SecondaryMessageFilePath");
}
}
}
private string _secondaryMessageFilePath;
任何帮助都将不胜感激。
编辑:
根据下面的建议,我尝试添加BooleanToVisibilityConverter,但是遇到了它的缺失程序集引用,并且对WPF太新以至于无法解决它。我的开头代码如下:
<UserControl x:Class="Sender_Receiver.SenderReceiverSetup"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:diagnostics="clr-namespace:System.Diagnostics;assembly=WindowsBase"
xmlns:m=...
xmlns:
<UserControl.Resources>
<BooleanToVisibiltyConverter x:Key="BooleanToVisibilityConverter"/>
...