Question

我有一个这样的按钮：

 <Button Name="btnSave" Click="BtnSave_OnClick"  Margin="5,0,0,0" MinWidth="50" ToolTip="SAVE">
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="Auto" />
                        </Grid.RowDefinitions>
                        <Image Height="24" HorizontalAlignment="Center" Source="/MyProject;component/Images/diskette.png" Width="24" />
                        <TextBlock Grid.Row="1" HorizontalAlignment="Center" Text="SAVE" />
                    </Grid>
            </Button>

此按钮位于FormA内部，打开FormB时我想将btnSave克隆到FormB，但它只是创建了一个Content = null按钮。

// On formA
FormB formB = new FormB();
formB.Loaded += (s, e1) =>
                {                       
                        formA.Children.Remove(btnSave);
                        formB.Children.Add(btnSave);
                };
formB.Show();

调试时，btnSave.Content总是= null。我尝试了很多方法来解决这个问题，就像将内容放入样式......但没有运气。你有什么想法或我做错了吗？感谢

Answer 1

将对象保存为xaml，然后从该xaml创建一个新对象。这是一个简单的例子，当点击按钮时，按钮会自动克隆并添加到堆栈面板。

的Xaml

<StackPanel x:Name="MainStackPanel">
    <Button Name="btnSave" Click="BtnSave_OnClick"  Margin="5,0,0,0" MinWidth="50" ToolTip="SAVE" >
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Image Height="24" HorizontalAlignment="Center" Source="/MyProject;component/Images/diskette.png" Width="24" />
            <TextBlock Grid.Row="1" HorizontalAlignment="Center" Text="SAVE" />
        </Grid>
    </Button>
</StackPanel>

代码隐藏

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void BtnSave_OnClick(object sender, RoutedEventArgs e)
    {
        Button button = sender as Button;
        string xaml = XamlWriter.Save(button);
        object clonedButton = XamlReader.Parse(xaml);
        MainStackPanel.Children.Add(clonedButton as UIElement);

    }
}

无法使用自定义内容克隆Button

1 个答案: