Question

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

    private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {

        Button button1 = new Button();
        Point tPosition = Mouse.GetPosition(this);
        button1.Margin = new Thickness(tPosition.X,tPosition.Y,0,0) ;
        button1.Width = 75;
        this.AddChild(button1);
    }
}

我认为代码非常明显，我在stackoverflow中使用了其他线程中批准的代码，它没有给出任何错误，但它也没有显示，是吗需要刷新窗口？怎么样？

按要求，XAML

<Window x:Class="Ampeldingensthingy.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid MouseLeftButtonDown="Grid_MouseLeftButtonDown" Name="hans">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="398*" />
            <ColumnDefinition Width="105*" />
        </Grid.ColumnDefinitions>
    </Grid>
</Window>

Answer 1

窗口只能有一个孩子，我想你已经有一个Grid订阅的MouseButtonDown。为该网格命名，然后替换

this.AddChild（按钮1）;

与

grid.Children.Add(button1);

这里grid是Grid的名称。

Answer 2

    public partial class MainWindow : Window
    {
        public StackPanel SPanel{get;set;}
        public MainWindow()
        {
            InitializeComponent();
            SPanel = new StackPanel { Orientation = Orientation.Vertical };
        }

        private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {              

            Button button1 = new Button();
            Point tPosition = Mouse.GetPosition(this);
            button1.Margin = new Thickness(tPosition.X,tPosition.Y,0,0) ;
            button1.Width = 75;
            SPanel.Children.Add(button1);
            window.Content = SPanel;
        }
    }

尝试用画布做同样的事情。按钮将在您给出的位置弹出。

Answer 3

对象＆＃34;这个＆＃34;这里描述了Window对象。 ContentControl的内容必须是单个元素。因此追加按钮是＆＃34; button1＆＃34;在父网格内。例如

private void Button_Click(object sender, RoutedEventArgs e)
        {
            Button button1 = new Button();
            Point tPosition = Mouse.GetPosition(this);
            button1.Margin = new Thickness(tPosition.X, tPosition.Y, 0, 0);
            button1.Width = 75;
            MainGrid.Children.Add(button1);
        }

在你的Xaml中

<Grid x:Name="MainGrid">
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>

        <Button Click="Button_Click" Content="click" Grid.Row="1"/>

    </Grid>

在运行时单击添加每个鼠标的控件

3 个答案: