C# WPF 复选框 IsChecked 绑定不起作用
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WPF checkbox IsChecked binding not working
提问by Nick X Tsui
I have this problem, that my checkbox IsChecked property binding is not working. I googled, but people say it shoudl TwoWay binding which is what I am using.
我有这个问题，我的复选框 IsChecked 属性绑定不起作用。我用谷歌搜索，但人们说它应该是我正在使用的双向绑定。
Here is my code:
这是我的代码：
<CheckBox Name="ckC" VerticalAlignment="Center"
IsChecked="{Binding Path=LSMChannelEnable[2],
Mode=TwoWay,
UpdateSourceTrigger=PropertyChanged}" />
Here is the C# code behind it:
这是它背后的 C# 代码：
public bool[] LSMChannelEnable
{
get
{
return this._liveImage.LSMChannelEnable;
}
set
{
this._liveImage.LSMChannelEnable = value;
OnPropertyChanged("LSMChannelEnable");
OnPropertyChanged("EnableChannelCount");
OnPropertyChanged("LSMChannel");
}
}
Any pointers are highly appreciated,
任何指针都受到高度赞赏，
采纳答案by Shawn Kendrot
This is because you are binding to an array. Pull the property out that you want to bind to a separate property.
这是因为您绑定到一个数组。拉出要绑定到单独属性的属性。
Xaml:
Xml：
IsChecked="{Binding Path=ButtonEnabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Code:
代码：
public bool ButtonEnabled
{
get { return this._liveImage.LSMChannelEnable[2]; }
set { this._liveImage.LSMChannelEnable[2] = value;
OnPropertyChanged("ButtonEnabled");
}
}
回答by JBrooks
Try this:
尝试这个：
OnPropertyChanged("Item[]");
The property generated by the compiler when using an indexer. See this blog post.
编译器在使用索引器时生成的属性。请参阅此博客文章。
