~楓花雪岳~: [C#] txt 資料放進 TextBox 內

星期二, 3月 15, 2016

[C#] txt 資料放進 TextBox 內

論壇問題，要把下面的 txt 內容塞進 WinForm 畫面上 18 個 TextBox 內

思考邏輯：讀每一行資料時，計算是屬於哪一個 TextBox 的資料，並透過 Controls.Find() 來尋找控件，並把值塞進去；TextBox 控件命名，要從 1 - 18 依序命名

using System.IO;

namespace WindowsFormsApplication1
{
  public partial class Form1 : Form
  {
      public Form1()
      {
          InitializeComponent();
      }

      private void Form1_Load(object sender, EventArgs e)
      {
          TextBoxCreate();
      }

      private void TextBoxCreate()
      {
          for (int i = 1; i <= 18; i++)
          {
              TextBox control = new TextBox() { 
                  Name = string.Format("TextBox{0}", i) ,
                  Text = string.Format("TextBox{0}", i)};

              flowLayoutPanel1.Controls.Add(control);

              if (i % 3 == 0)
                  flowLayoutPanel1.SetFlowBreak(control, true);
          }
      }

      private void button1_Click(object sender, EventArgs e)
      {
          OpenFileDialog ofd = new OpenFileDialog();
          ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
          ofd.Filter = "(*.txt)|*.txt";

          if (ofd.ShowDialog() != DialogResult.OK) return;

          ReadTxtContent(ofd.FileName);
      }

      private void ReadTxtContent(string txtPath)
      {
          if (string.IsNullOrEmpty(txtPath))
              throw new ArgumentNullException(string.Format("ReadTxtContent()：txtPath 參數為 NULL"));

          if (!File.Exists(txtPath))
              throw new FileNotFoundException("ReadTxtContent()：txtPath 參數，檔案不存在");

          string AllContent = string.Empty;

          using (FileStream fs = new FileStream(txtPath, FileMode.Open, FileAccess.Read))
          using (StreamReader reader = new StreamReader(fs, Encoding.Default))
          {
              string
                  LineContent = string.Empty,
                  Data = string.Empty;
              int
                  Row = 0,
                  TextBoxCount = 1;

              while ((LineContent = reader.ReadLine()) != null)
              {
                  string[] ColData = LineContent.Split(new char[] {' '} , StringSplitOptions.RemoveEmptyEntries);

                  if (ColData.Length != 3)
                      throw new Exception(string.Format("ReadTxtContent()：資料異常"));

                  // 把 txt 檔案內資料放在畫面上，方便和下方的 TextBox 比較
                  txtContent.Text += LineContent + Environment.NewLine;

                  for (int ColCount = 0 ; ColCount < ColData.Length; ColCount++)
                  {
                      TextBoxCount = 3 * Row + (ColCount + 1);
                      Data = ColData[ColCount].ToString();
                      TextBoxDataFill(TextBoxCount, Data);
                  }

                  Row++;
              }
          }
      }

      private void TextBoxDataFill(int TargetTextbox , string data)
      {

          if (string.IsNullOrEmpty(data))
              throw new ArgumentNullException(string.Format("TextBoxDataFill():data 參數為 NULL"));

          string TextBoxName = string.Format("TextBox{0}", TargetTextbox);

          Control[] ctls = flowLayoutPanel1.Controls.Find(TextBoxName , false);

          TextBox ctl = ctls[0] as TextBox;
          if (ctl == null)
              throw new Exception(string.Format("TextBoxDataFill()：{0} 不是 TextBox 控件", TextBoxName));

          ctl.Text = data;
      }
  }
}

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