使用从 xml 文件生成的按钮来设置单选按钮值

Question

案例：我的 Windows 窗体应用程序正在从 XML 文件创建按钮和单选按钮。对于创建的每个按钮（在 XML 中预设），我想将 checked 单选按钮（在 XML 中的 Lijst）更改为我的 XML 中描述的值。

我的想法：应该有一个点击方法，比它读取预设被点击的xml值并将单选按钮更改为正确的值。但我不知道如何做到这一点。

XML 代码：

<Lijsten>

   <Lijst>
   <Titel>Discipline</Titel>
   <Waardes>Elektro</Waardes>
   <Waardes>Mechanisch</Waardes>
   <Waardes>Civiel</Waardes>
   <Waardes>Proces</Waardes>
   <Waardes>N.v.t.</Waardes>
   </Lijst>
   <Lijst>
   <Titel>Soort</Titel>
   <Waardes>Tekening</Waardes>
   <Waardes>Tekst doc</Waardes>
   <Waardes>Afbeelding</Waardes>
   <Waardes>N.v.t.</Waardes>
   </Lijst>

   <Preset>
   <ButtonTitel>Preset 1</ButtonTitel>
   <sets>
      <RadioButtonTitel>Discipline</RadioButtonTitel>
      <RadioButtonValue>Elektro</RadioButtonValue>
   </sets>
   <sets>
      <RadioButtonTitel>Soort</RadioButtonTitel>
      <RadioButtonValue>Afbeelding</RadioButtonValue>
   </sets>
   </Preset>
   <Preset>
   <ButtonTitel>Preset 2</ButtonTitel>
   <sets>
      <RadioButtonTitel>Discipline</RadioButtonTitel>
      <RadioButtonValue>Mechanisch</RadioButtonValue>
   </sets>
   <sets>
      <RadioButtonTitel>Soort</RadioButtonTitel>
      <RadioButtonValue>Tekening</RadioButtonValue>
   </sets>
   </Preset>

</Lijsten>

创建单选按钮的代码：

foreach (XmlNode node in nodes)
{
    radioButtonCounter += 1;
    count += 1;
    if (count < 4)
    {
         int heightRadioButtons = 0;
         WidthPanelsRow1 += 155;
         Panel panel = new Panel();
         panel.Size = new Size(140, 200);
         panel.Location = new Point(WidthPanelsRow1, heightPanelsRow1);
         panel.Name = "panel" + count.ToString();
         panel.BackColor = Color.LightGray;

         Label lbl = new Label();
         lbl.Text = node["Titel"].InnerText;
         lbl.Location = new Point(0, 0);
         lbl.Font = font1;
         panel.Controls.Add(lbl);

         int counterLastRadioButton = 0;
         XmlNodeList waardeNodes = node.SelectNodes("Waardes");
         foreach (XmlNode wNode in waardeNodes)
         {
              counterLastRadioButton += 1;
              heightRadioButtons += 20;
              RadioButton rb = new RadioButton();
              rb.Text = wNode.InnerText;
              rb.Location = new Point(5, heightRadioButtons);
              rb.Name = node["Titel"].InnerText;
              if (waardeNodes.Count - 1 < counterLastRadioButton)
              {
                   rb.Checked = true;
              }
              panel.Controls.Add(rb);
         }
         this.Controls.Add(panel);
   }else...
}

创建预设按钮的代码：

foreach (XmlNode node in nodes)
{
     count += 1;
     if (count < 4)
     {
          WidthPanelsRow1 += 155;
          Panel panel = new Panel();
          panel.Size = new Size(140, 40);
          panel.Location = new Point(WidthPanelsRow1, heightPanelsRow1);
          panel.Name = "panel" + count.ToString();

          XmlNodeList titelPreset = node.SelectNodes("ButtonTitel");
          foreach (XmlNode titelNode in titelPreset)
          {
              Button btn = new Button();
              btn.Text = titelNode.InnerText;
              btn.Location = new Point(0, 0);
              btn.Name = node["ButtonTitel"].InnerText;
              btn.Size = new Size(140,40);
              btn.Click += (sender, args) =>
              {
                   //What to do here?
              };
              panel.Controls.Add(btn);
          }
          this.Controls.Add(panel);
      }else...
}

谢谢。

Answer 1

尝试使用字典。请参阅下面的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        const string FILENAME = @"c:\temp\test.xml";

        public Dictionary<string, Dictionary<string, RadioButton>> radioPanels = new Dictionary<string, Dictionary<string, RadioButton>>();

        public Form1()
        {
            InitializeComponent();

            int radioButtonCounter = 0;
            int count = 0;
            int WidthPanelsRow1 = 100;
            int heightPanelsRow1 = 50;
            Font font1 = new Font(this.Font, FontStyle.Regular);

            XmlDocument doc = new XmlDocument();
            doc.Load(FILENAME);
            XmlNodeList nodes = doc.GetElementsByTagName("Lijst");

            Dictionary<string, RadioButton> dictRadioButtons;
            foreach (XmlNode node in nodes)
            {
                radioButtonCounter += 1;
                count += 1;
                if (count < 4)
                {
                    int heightRadioButtons = 0;
                    WidthPanelsRow1 += 155;
                    Panel panel = new Panel();
                    panel.Size = new Size(140, 200);
                    panel.Location = new Point(WidthPanelsRow1, heightPanelsRow1);
                    panel.Name = "panel" + count.ToString();
                    panel.BackColor = Color.LightGray;

                    Label lbl = new Label();
                    lbl.Text = node["Titel"].InnerText;
                    lbl.Location = new Point(0, 0);
                    lbl.Font = font1;
                    panel.Controls.Add(lbl);
                    dictRadioButtons = new Dictionary<string, RadioButton>();
                    radioPanels.Add(lbl.Text, dictRadioButtons);

                    int counterLastRadioButton = 0;
                    XmlNodeList waardeNodes = node.SelectNodes("Waardes");
                    foreach (XmlNode wNode in waardeNodes)
                    {
                        counterLastRadioButton += 1;
                        heightRadioButtons += 20;
                        RadioButton rb = new RadioButton();
                        rb.Text = wNode.InnerText;
                        rb.Location = new Point(5, heightRadioButtons);
                        rb.Name = node["Titel"].InnerText;
                        if (waardeNodes.Count - 1 < counterLastRadioButton)
                        {
                            rb.Checked = true;
                        }
                        panel.Controls.Add(rb);
                        dictRadioButtons.Add(rb.Text, rb);

                    }
                    this.Controls.Add(panel);

                    int countA = 0;
                    foreach (XmlNode nodeA in nodes)
                    {
                        countA += 1;
                        if (countA < 4)
                        {
                            WidthPanelsRow1 += 155;
                            Panel panelA = new Panel();
                            panelA.Size = new Size(140, 40);
                            panelA.Location = new Point(WidthPanelsRow1, heightPanelsRow1);
                            panelA.Name = "panel" + count.ToString();

                            XmlNodeList titelPreset = node.SelectNodes("ButtonTitel");
                            foreach (XmlNode titelNode in titelPreset)
                            {
                                Button btn = new Button();
                                btn.Text = titelNode.InnerText;
                                btn.Location = new Point(0, 0);
                                btn.Name = nodeA["ButtonTitel"].InnerText;
                                btn.Size = new Size(140, 40);

                            }
                            this.Controls.Add(panelA);
                        }
                    }
                }
            }

            XmlNodeList presets = doc.GetElementsByTagName("Preset");
            XmlNodeList radioButtonValues = presets[0].SelectNodes("sets");

            foreach (XmlNode rbNode in radioButtonValues)
            {
                Dictionary<string, RadioButton> rbPanel = radioPanels[rbNode.SelectNodes("RadioButtonTitel")[0].InnerText];
                RadioButton rb = rbPanel[rbNode.SelectNodes("RadioButtonValue")[0].InnerText];
                rb.Checked = true;
            }
        }

    }
}