发现一个问题，不知道是否为BUG，请各位帮忙看一下，路过的也顶下，谢了

Question

TextBox 和 numericUpDown 貌似不能共存以下是源代码，在Form1中有TextBox、NumericUpDown、Button三个控件。点击按钮事件(调用buildUpControls方法)出现错误（TextBox的Name变成""）,如果把NumericUpDown控件去掉或者放到一个容器里，就正常了，请各位看看，是我的代码有问题还是这个控件的问题。
PS：如果不在这个方法里，好像又没有问题Form1.csusing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace BugTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            Dictionary<string, ControlItem> controls = new Dictionary<string, ControlItem>();
            buildUpControls(this.Controls,controls);
        }        private Dictionary<string, ControlItem> buildUpControls(Control.ControlCollection controlCollection, Dictionary<string, ControlItem> controls)
        {
            ControlItem controlItem;
            foreach (Control control in controlCollection)
            {
                if ((control is TextBox) || (control is ComboBox) || (control is DateTimePicker))
                {
                    string name = control.Name;
                    Console.WriteLine(name);
                    controlItem = new ControlItem(name, name.Substring(3), control.GetType().ToString(), control.Text);
                    controls.Add(controlItem.FullName, controlItem);
                    continue;
                }
                if (control is RadioButton)
                {
                    controlItem = new ControlItem(control.Name, control.Tag.ToString(), control.GetType().ToString(), control.Text);
                    controls.Add(controlItem.FullName, controlItem);
                    continue;
                }
                if (control is ContainerControl)
                {
                    buildUpControls(control.Controls, controls);
                    continue;
                }
            }
            return controls;
        }
    }
}

Answer 1

ControlItem.csusing System;
using System.Collections.Generic;
using System.Text;
namespace BugTest
{
    class ControlItem
    {
        public ControlItem() { }
        public ControlItem(string fullName, string simpleName, string controlType, string text)
        {
            this.fullName = fullName;
            this.simpleName = simpleName;
            this.controlType = controlType;
            this.text = text;
        }
        private string fullName;        public string FullName
        {
            get { return fullName; }
            set { fullName = value; }
        }        private string simpleName;        public string SimpleName
        {
            get { return simpleName; }
            set { simpleName = value; }
        }        private string controlType;        public string ControlType
        {
            get { return controlType; }
            set { controlType = value; }
        }
        private string text;        public string Text
        {
            get { return text; }
            set { text = value; }
        }    }
}

Answer 2

调试一下就知道了，当遍历到NumericUpDown时，其有一个TextBox子控件，但是它没有Name属性，所以当你调用SubString的时候就出错了
修改一下：                    if (!string.IsNullOrEmpty(name))
                    {
                        controlItem = new ControlItem(name, name.Substring(3), control.GetType().ToString(), control.Text);
                        controls.Add(controlItem.FullName, controlItem);
                    }

Answer 3

谢谢ojlovecd
给分，结贴，呵呵