动态创建多个文本框 C# [英] dynamically create multiple textboxes C#

问题描述

这是我的代码.但是我所有文本框的值都是空的.

This is my code. But all my textboxes's value is just null.

    public void createTxtTeamNames()
    {
        TextBox[] txtTeamNames = new TextBox[teams];
        int i = 0;
        foreach (TextBox txt in txtTeamNames)
        {
            string name = "TeamNumber" + i.ToString();
            txt.Name = name;
            txt.Text = name;
            txt.Location = new Point(172, 32 + (i * 28));
            txt.Visible = true;
            i++;
        }
    }

感谢您的帮助.

推荐答案

数组创建调用只是将元素初始化为null.您需要单独创建它们.

The array creation call just initializes the elements to null. You need to individually create them.

TextBox[] txtTeamNames = new TextBox[teams];
for (int i = 0; i < txtTeamNames.Length; i++) {
  var txt = new TextBox();
  txtTeamNames[i] = txt;
  txt.Name = name;
  txt.Text = name;
  txt.Location = new Point(172, 32 + (i * 28));
  txt.Visible = true;
}

注意:正如一些人所指出的，为了使这段代码有意义，您需要将每个 TextBox 添加到父 Control.例如 this.Controls.Add(txt).

Note: As several people have pointed out in order for this code to be meaningful you will need to add each TextBox to a parent Control. eg this.Controls.Add(txt).

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