Question

WPF控件动态添加 只是加了一个button 怎么显示不出来呢？窗口是空的

<Window x:Class="shiyan.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" Loaded="Window_Loaded">
<Canvas Name="abc">

</Canvas>
</Window>
////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace shiyan
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}

private void Window_Loaded(object sender, RoutedEventArgs e)
{
Label button1 = new Label();
abc.Children.Add(button1);
}
}
}

Answer 1

按你的代码来看
1、首先你添加的是label而不是button
2、你没有设label的text属性，当然什么都看不到
3、如果要添加button 试着这样
Button button1 = new Button();
button1.Content="测试";
abc.Children.Add(button1);