[英]How to acces text of textblock inside a dynamic stackpanel in wp8?
[英]How to get TextBlock's Text value out of a StackPanel inside a Button in WPF
我想知道如何从WPF中按钮内的StackPanel内的TextBlock中获取文本值,它非常像这样:
public MainWindow()
{
Image img = new Image();
img.Source = new BitmapImage(new Uri("image.png"));
StackPanel stackPnl = new StackPanel();
stackPnl.Orientation = Orientation.Vertical;
stackPnl.Margin = new Thickness(10);
stackPnl.Children.Add(img);
TextBlock txtBlck = new TextBlock();
txtBlck.Text = "this is a test!";
stackPnl.Children.Add(txtBlck);
Button btn = new Button();
btn.Content = stackPnl;
btn.Click += test_click;
myPanel.Children.Add(btn);
}
和test_click:
private void test_click(object sender, RoutedEventArgs e)
{
txtBox.Text = (sender as Button).Content.ToString();
}
现在,当然,我单击按钮后得到的是这个System.Windows.Controls.StackPanel
,由于StackPanel是按钮的实际内容,我想这很明显,但是就像我说的那样,我需要知道如何仅获取TextBlock的Text值,因此在这种情况下txtBox应该显示this is a test!
。 怎么做?,并预先感谢!
从我的头开始:1.在本地存储TextBlock的实例,并在需要时使用它。2.创建DependencyProperty并将其绑定到TextBlock。 那样的话,您将在此DP中始终拥有最新价值。
希望能有所帮助。
最简单的方法是
TextBlock txtBlck = new TextBlock();
txtBlck.Name = "SomeName";
txtBlck.Text = "this is a test!";
然后
private void test_click(object sender, RoutedEventArgs e)
{
txtBox.Text = SomeName.Text;
}
按钮Content是您的堆栈面板而不是您的文本块,然后要替换该文本块内容,您需要:
txtBox.Text =(发送为Button).Content;
这样
txtBox.Text = txtBlck.Text;
如果您非常想从textblock中获取文本,则不要公开使用textblock。
public TextBlock txtBlck = new TextBlock();
public MainWindow()
{
InitializeComponent();
StackPanel stackPnl = new StackPanel();
stackPnl.Orientation = Orientation.Vertical;
stackPnl.Margin = new Thickness(10);
txtBlck.Text = "this is a test!";
stackPnl.Children.Add(txtBlck);
Button btn = new Button();
btn.Content = stackPnl;
btn.Click +=btn_Click;
myPanel.Children.Add(btn);
}
void btn_Click(object sender, RoutedEventArgs e)
{
txtBox.Text = txtBlck.Text;
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.