如何從程序的其他部分訪問窗體中動態生成的文本框？

Question

我目前有一個表格，我動態地創建了一個文本框，按鈕等二維數組我只是發現我的程序的其他部分無法訪問我創建的文本框？有沒有辦法我可以做到這一點？

我的代碼去是這樣的：

public Form1() 
    { 
     int column = 4; 

     System.Windows.Forms.TextBox[,] textbox = new System.Windows.Forms.TextBox[column, row]; 

     for (int i = 0; i < column; i++) 
     { 
      for (int j = 0; j < row; j++) 
      { 
       textbox[i, j] = new System.Windows.Forms.TextBox(); 
       textbox[i, j].Size = new Size(80, 20); 
       textbox[i, j].Name = "textbox_" + i + "_" + j; 
       textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30); 
       textbox[i, j].Visible = true; 
       Controls.Add(textbox[i, j]); 

      } 
     } 

     /////fill the textboxes with data////// 
    } 

我無法訪問外部方法的文本框，我該怎麼辦呢？你能提供一些工作編碼嗎？我仍然相對較新的C＃，非常感謝你

Answer 1

你可以添加一個類級別的屬性，就像

public class Form1 
{ 
    public System.Windows.Forms.TextBox[,] textbox { get; set; } 

    public Form1() 
    { 
     int column = 4; 

     textbox = new System.Windows.Forms.TextBox[column, row]; 

     for (int i = 0; i < column; i++) 
     { 
      for (int j = 0; j < row; j++) 
      { 
       textbox[i, j] = new System.Windows.Forms.TextBox(); 
       textbox[i, j].Size = new Size(80, 20); 
       textbox[i, j].Name = "textbox_" + i + "_" + j; 
       textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30); 
       textbox[i, j].Visible = true; 
       Controls.Add(textbox[i, j]); 

      } 
     } 
    } 
} 

然後，你可以簡單地做喜歡

Form1 myForm = GetMyForm(); 
System.Windows.Forms.TextBox[,] theTextboxArray = myForm.textbox; 

Answer 2

當然，你不能與textbox_i_j其中i & j是與智能感知的數字，因爲它不支持，但你可以讓他們這樣

TextBox GetTB(string name) 
{ 
return (Controls.FindControl(name) as TextBox); 
} 

訪問它們

Answer 3

Declare int column = 4; 
System.Windows.Forms.TextBox[,] textbox = new System.Windows.Forms.TextBox[column, row]; 

Form1以外的構造函數。你的代碼應該看起來像：

int column = 4; 
System.Windows.Forms.TextBox[,] textbox; 
public Form1() 
{ 


    textbox = new System.Windows.Forms.TextBox[column, row]; 

    for (int i = 0; i < column; i++) 
    { 
     for (int j = 0; j < row; j++) 
     { 
      textbox[i, j] = new System.Windows.Forms.TextBox(); 
      textbox[i, j].Size = new Size(80, 20); 
      textbox[i, j].Name = "textbox_" + i + "_" + j; 
      textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30); 
      textbox[i, j].Visible = true; 
      Controls.Add(textbox[i, j]); 

     } 
    } 

    /////fill the textboxes with data////// 
} 

Answer 4

我有搜索網絡的答案，而我等待一些聰明的人回答我的問題。我使用的字典檢索的文本框中，是這樣的：

Get a Windows Forms control by name in C#

//聲明

Dictionary <String, System.Windows.Forms.TextBox> dictionaryTextBox = new Dictionary<string, System.Windows.Forms.TextBox>(); 

//創建數組的

System.Windows.Forms.TextBox[,] textbox = new System.Windows.Forms.TextBox[column, row]; 

     for (int i = 0; i < column; i++) 
     { 
      for (int j = 0; j < row; j++) 
      { 
       textbox[i, j] = new System.Windows.Forms.TextBox(); 
       textbox[i, j].Size = new Size(80, 20); 
       textbox[i, j].Name = "textbox_" + i + "_" + j; 
       textbox[i, j].Location = new System.Drawing.Point((i * 80) + 20, (j * 20) + 30); 
       textbox[i, j].Visible = true; 
       Controls.Add(textbox[i, j]); 


        //new added 
       dictionaryTextBox.Add (textbox[i, j].Name, textbox[i, j]); 

      } 
     } 

//檢索

 System.Windows.Forms.TextBox retrieve = dictionaryTextBox["textbox_3_3"]; 

     retrieve.Text = "apple";