填充文本框对象 [英] Filling a TextBox Object

问题描述

你好，

在我的程序中，我需要从第二行到richTextBox控件的末尾填充一个TextBox对象.我使用了下面的代码，但我想知道为什么它不起作用.您能告诉我如何使它工作吗?

Hello,

In my program I need to fill a TextBox Object from the second line to the end of a richTextBox Control. I used the code below but I wonder why it does not work. Could you please let me know how could I make it work?

private void button1_Click(object sender, EventArgs e)
{

     int intLng = richTextBox1.Lines.Length;
     TextBox MyTextBox = new TextBox();
     MyTextBox.Lines = new String[intLng - 1];
     MyTextBox.Multiline = true;

     for ( int i =1 ; i < intLng ; i ++ )
     {
         MyTextBox.Lines[i - 1] =richTextBox1.Lines[i].ToString(); 
     }
}  

非常感谢

Thank you a lot

推荐答案

您将不得不创建一个字符串数组并填充它.然后，您可以将其设置为文本框的行.

You will have to create a array of strings and populate it. Then you can set this as lines for the textbox.

int intLng = richTextBox1.Lines.Length;
            TextBox MyTextBox = new TextBox();
            MyTextBox.Lines = new String[intLng - 1];
            MyTextBox.Multiline = true;
            string[] str = new string[intLng - 1];
            for (int i = 1; i < intLng; i++)
            {
                str[i - 1] = richTextBox1.Lines[i].ToString();
            }
            MyTextBox.Lines = str;

它是公共的，但是您必须传递初始化数组.
糟透了，对不起，但这是它的工作方式.

LINQ来救援！

It''s public, but you have to pass in the initialized array.

Sucks, sorry, but it''s how it works.

LINQ to the rescue!

private void button1_Click(object sender, EventArgs e)
{
    TextBox MyTextBox = new TextBox();
    MyTextBox.Multiline = true;
    MyTextBox.Lines = richTextBox1.Lines.Skip(1).ToArray();

}

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