在UWP中,要获取ListView元素复选框的值,可以通过以下步骤实现:
<ListView x:Name="myListView">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<CheckBox x:Name="myCheckBox" Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"/>
<TextBlock Text="{Binding ItemName}"/>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
private void CheckBox_Checked(object sender, RoutedEventArgs e)
{
CheckBox checkBox = (CheckBox)sender;
ListViewItem listViewItem = FindAncestor<ListViewItem>(checkBox);
// 获取ListViewItem的数据对象
YourDataObject dataObject = (YourDataObject)listViewItem.Content;
// 获取复选框的值
bool isChecked = checkBox.IsChecked ?? false;
// 处理复选框的值
// ...
}
private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
{
CheckBox checkBox = (CheckBox)sender;
ListViewItem listViewItem = FindAncestor<ListViewItem>(checkBox);
// 获取ListViewItem的数据对象
YourDataObject dataObject = (YourDataObject)listViewItem.Content;
// 获取复选框的值
bool isChecked = checkBox.IsChecked ?? false;
// 处理复选框的值
// ...
}
private T FindAncestor<T>(DependencyObject current) where T : DependencyObject
{
do
{
if (current is T ancestor)
{
return ancestor;
}
current = VisualTreeHelper.GetParent(current);
}
while (current != null);
return null;
}
在上述代码中,我们通过事件处理程序CheckBox_Checked和CheckBox_Unchecked来获取复选框的值。首先,我们将发送事件的复选框转换为CheckBox对象。然后,我们使用FindAncestor方法找到包含复选框的ListViewItem。最后,我们可以从ListViewItem中获取数据对象,并处理复选框的值。
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