如何在C#中使用命令Controls.Add() [英] How to use the command Controls.Add() in C#

问题描述

大家好，

我是C#的新手，并且一直在尝试实现按钮的非常基本的动态编程.
我在Google上寻找解决方案，但我不断收到此错误:

Hi everybody,

I am a newbie with c# and have been trying to implement a very basic dynamic programming of a button.
I googled to look for a solution, but I keep obtaining this error:

'System.Windows.Controls.WrapPanel' does not contain a definition for 'Controls' and no extension method 'Controls' accepting a first argument...

如果不使用此 Controls.Add()函数，我无法弄清楚如何在窗口上显示按钮.
我想念什么?

感谢您的帮助！

I cannot figure out how to have the button showing up on my window without using this Controls.Add() function.
What am I missing?

Thanks for your help!

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace Simple_Button_Feedback
{
    public partial class MainWindow : Window
    {   
        public MainWindow()
        {
            CreateButton();

            InitializeComponent();
        }

        private void CreateButton()
        {

            Button b = new Button();
            b.Content = "I'm a silly Button";
            b.Click += new RoutedEventHandler(this.ButtonClick);
            b.Height = 25;
            b.Width = 100;
      //      b.Location = new Point(50,50);

            LinearGradientBrush lgb = new LinearGradientBrush();
            lgb.GradientStops.Add(new GradientStop(Colors.Yellow, 0));
            lgb.GradientStops.Add(new GradientStop(Colors.Green, 1));
            b.Background = lgb;
 
      //          this.Controls.Add(b);
      //   A <WrapPanel> named "Panel1" is defined in the .xaml file 
            Panel1.Controls.Add(b);
        }

        protected void ButtonClick(object sender, EventArgs e)
        {
            MessageBox.Show("Click me again.  That felt good.");
        }

    }
}

推荐答案

不知道为什么删除了您的解决方案，但供以后参考:

Not sure why your solution was deleted but for future reference:

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

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

        private void CreateButton()
        {

            Button b = new Button();
            b.Content = "I'm a silly Button";
            b.Click += new RoutedEventHandler(this.ButtonClick);
            b.Height = 25;
            b.Width = 100;
      //      b.Location = new Point(50,50);

            LinearGradientBrush lgb = new LinearGradientBrush();
            lgb.GradientStops.Add(new GradientStop(Colors.Yellow, 0));
            lgb.GradientStops.Add(new GradientStop(Colors.Green, 1));
            b.Background = lgb;

      //          this.Controls.Add(b);
      //   A <WrapPanel> named "Panel1" is defined in the .xaml file
            Panel1.Children.Add(b);
        }

        protected void ButtonClick(object sender, EventArgs e)
        {
            MessageBox.Show("Click me again.  That felt good.");
        }

    }
}

，您可以使用此代码动态添加按钮.

you can use this code to add button dynamically.

private void CreateButton()
{
    Button Button1 = new Button();
    Button1.Name = "Button1";// this is useful to identify the object
    Button1.Location = new Point(25, 25);
    this.Controls.Add(Button1);
}

这篇关于如何在C#中使用命令Controls.Add()的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！