如何检查控件是否被手动单击?

I've a ToggleButton with this structure:

我有一个这样结构的按钮:

<ToggleButton Focusable="False" Width="19" Height="19" x:Name="tbBtn" Checked="ToggleButton_Checked" Unchecked="ToggleButton_Unchecked"/>

Now my goal is check in the ToggleButton_Checked event if the user has clicked this event manually, or instead I fired this event through code.

现在我的目标是在ToggleButton_Checked事件中检查用户是否手动单击了这个事件，或者我通过代码触发这个事件。

In particular, in some situation I set the IsChecked property behind code, like this:

特别是，在某些情况下，我将ischeck属性设置在代码后面，如下所示:

tbBtn.IsChecked = true;

Is possible check in the sender:

是否可以向发件人查询:

private void ToggleButton_Checked(object sender, RoutedEventArgs e)
{
   //perform check
}

If this event was trigger manually or set behind code? Maybe it's a property in the sender that I don't know about?

如果这个事件是手动触发的还是在代码后面设置的?可能是sender中的一个属性我不知道?

3 个解决方案

#1

try Something like:

尝试:

ToggleButton button = sender as ToggleButton;

else

其他的

private void ToggleButton_Click(object sender, RoutedEventArgs e)
{
   if((sender as ToggleButton).IsChecked)
   {
      // Code for Checked state
   }
   else
   {
      // Code for Un-Checked state
   }
}

XAML

<ToggleButton Height="37" HorizontalAlignment="Left" Margin="485.738,254.419,0,0"     VerticalAlignment="Top" Width="109" IsEnabled="True" Click="ToggleButton_Click">Timeout</ToggleButton>

#2

You can use the click event instead.

您可以使用单击事件代替。

    <ToggleButton x:Name ="tbBtn" Content="Test" Click="ToggleButton_Click"></ToggleButton>

Code behind;

代码后面;

    public MainWindow()
    {
        InitializeComponent();
        tbBtn.IsChecked = true; 
    }

    private void ToggleButton_Click(object sender, RoutedEventArgs e)
    {
        var tb = sender as ToggleButton;
        if(tb != null)
        {
            if(tb.IsChecked.HasValue && tb.IsChecked.Value)
            {
                Debug.WriteLine("AlreadyChecked");
            }
        }
    }

#3

Use a class level variable to track it. So, code will be something like

使用类级变量跟踪它。代码是这样的

ClickedFromCode = true;
tbBtn.IsChecked = true;
ClickedFromCode = false;

Same variable can be used for multiple events fired from code. Now catch this boolean within the

相同的变量可以用于从代码中触发的多个事件。现在在

private void ToggleButton_Checked(object sender, RoutedEventArgs e)
{
   //perform check
   if (ClickedFromCode)
   { //do something
   }
   else
   {  //do something
   }
}

#1