使用 MVVM 根据 WPF 中的复选框选择启用/禁用文本框
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Enable/disable textbox based on checkbox selection in WPF using MVVM
提问by aliensurfer
I have a WPF form with as many as 40 textboxes, with a checkbox for each. Each textbox should be enabled/disabled based on the value of its corresponding checkbox. I've seen solutions where we can use ICommandto achieve this, but how do I handle 40 individual cases without having 40 ICommandimplementations?
我有一个 WPF 表单，其中包含多达 40 个文本框，每个文本框都有一个复选框。每个文本框都应根据其相应复选框的值启用/禁用。我已经看到了我们可以ICommand用来实现这一目标的解决方案，但是如何在没有 40 个ICommand实现的情况下处理 40 个单独的案例？
回答by Thomas Levesque
Just bind the IsEnabledproperty of the TextBoxto the IsCheckedproperty of the CheckBox:
只需将 的IsEnabled属性绑定TextBox到 的IsChecked属性CheckBox：
<CheckBox Name="checkBox1" />
<TextBox IsEnabled="{Binding ElementName=checkBox1, Path=IsChecked}" />
回答by Wesley Kenis
if you have 40 controls like this, I would create a new control containing the checkbox and the textbox. The you can use that new control without the need to implement 40 commands, instead your new control has a single command implementation. and this is also less code to maintain as additional benefit
如果您有 40 个这样的控件，我将创建一个包含复选框和文本框的新控件。您可以使用该新控件而无需实现 40 个命令，相反，您的新控件只有一个命令实现。这也是更少的代码维护作为额外的好处
