文本框的for循环 [英] for loop for textboxes

问题描述

我的表单中有100个文本框，我想将文本框的文本确定为10 * 10矩阵.

我该如何使用for循环?

我的意思是例如

  for ( int  i =  0 ；我<   100 ； i ++){
           {
                for ( int  j =  0 ; j <   100 ; j ++)
                   matrix [i，j] =  float  .Parse   (TextBox [i，j] .text); 
           } 

但是C#没有这样的东西，请帮助我:confused:

解决方案

您可以尝试这样的事情.将您的文本框ID设置为类似于textBox_< row> _< column>如textBox_1_1，textBox_1_2

您的代码将如下所示.

for (int i = 0; i < 10; i++){
          {
              for (int j = 0; j < 10; j++)
                  matrix[i, j] =( (TextBox) FindControl(string.Format("textBox_{0}_{1}", i, j))).Text;
          }

您还可以将文本框的ID与它们的行列索引相对应地存储在集合中，并在需要时从集合中获取ID.我只是用C#敲了一下，就可以正常工作(每天学习一些新知识！)

创建一个带有两个按钮的表单；一个创建，一个输出到调试窗口；

这是用于创建100个名为TextBox0到TextBox99的文本框并将其文本设置为0到99之间的值以及矩阵类变量的代码.然后它将搜索每个文本框的表单控件collectin并将其值加载到矩阵中.

 // 为文本框值创建新矩阵
私有  int  [，] matrix = 新  int  [ 10 ， 10 ];

公共 无效 create100textboxes()
{
    // 创建100个文本框，将文本设置为文本框编号
     for ( int  i =  0 ; i <   100 ； i ++)
    {
        TextBox newTextbox = 新 TextBox();
        newTextbox.Name = "  + i.ToString();
        newTextbox.Text = i.ToString();

        此 .Controls.Add(newTextbox);
        newTextbox.BringToFront();
    }

     int  textBoxCount =  0 ;
    // 创建行循环
     for ( int  r =  0 ; r <   10 ; r ++)
    {
        // 创建col循环
         for ( int  c =  0 ; c <   10 ; c ++)
        {

            TextBox currentTextBox =(TextBox)控件[Controls.IndexOfKey("  + textBoxCount.ToString()) ];

            matrix [c，r] =  int  .Parse(currentTextBox.Text);
            textBoxCount ++;
        }
    }
}

下面的代码将遍历矩阵，并将每行/列地址输出到调试窗口；

 私有 无效 buttonPrint_Click(对象发​​件人，EventArgs e)
{
     for ( int  r =  0 ; r <   10 ; r ++)
    {
         for ( int  c =  0 ; c <   10 ; c ++)
        {
            System.Diagnostics.Debug.Print("  + r +  ，" + c +   + matrix [r，c])；
        }
    }
}

I have 100 textboxes in my form and I want to determine my textboxes'' text to a 10*10 matrix.

How can I do this with for loops?

I mean for example

for (int i = 0; i < 100; i++){
           {
               for (int j = 0; j < 100; j++)
                   matrix[i, j] = float.Parse(TextBox[i,j].text);
           }  

but c# dosn''t have somthing like this, please help me:confused:

解决方案

You can try something like this. Set your textbox id something like this textBox_<row>_<column> like textBox_1_1, textBox_1_2

and your code will look like this.

for (int i = 0; i < 10; i++){
          {
              for (int j = 0; j < 10; j++)
                  matrix[i, j] =( (TextBox) FindControl(string.Format("textBox_{0}_{1}", i, j))).Text;
          }

You can also store the id of the textboxes against their row column index in a collection and fetch the id from the collection when required.

Try this; i just knocked this up in C# and works fine (learn something new everyday!)

create a form with 2 buttons on it; One does the create, and one does the output to debug window;

This is the code to create 100 textboxes named TextBox0 to TextBox99 and set their text to a value from 0 to 99 and also the matrix class variable. It will then search the forms controls collectin for each textbox and load its value to the matrix.

//Create a new matrix for the textbox values
private int[,] matrix = new int[10, 10];

public void create100textboxes()
{
    // Create 100 textboxes, set text to the textbox number
    for (int i = 0; i < 100; i++)
    {
        TextBox newTextbox = new TextBox();
        newTextbox.Name = "TextBox" + i.ToString();
        newTextbox.Text = i.ToString ();

        this.Controls.Add(newTextbox);
        newTextbox.BringToFront();
    }

    int textBoxCount = 0;
    //Create the row loop
    for (int r = 0; r < 10; r++)
    {
        //Create the col loop
        for (int c = 0; c < 10; c++)
        {

            TextBox currentTextBox = (TextBox) Controls[Controls.IndexOfKey("TextBox" + textBoxCount.ToString())];

            matrix[c,r] = int.Parse(currentTextBox.Text);
            textBoxCount++;
        }
    }
}

The code below will iterate through the matrix and output to the debug window each row/col address;

private void buttonPrint_Click(object sender, EventArgs e)
{
    for (int r = 0; r < 10; r++)
    {
        for (int c = 0; c < 10; c++)
        {
            System.Diagnostics.Debug.Print("Matrix[" + r + "," + c + "]=" + matrix[r, c]);
        }
    }
}

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