当我从多个文本框中插入单个值时，如何将值返回到多个文本框中

Question

I'm developing an application which gets the Mobile no. through a multiple text boxes, 1 digit per text box, I have inserted values successfully by cancatination, now the problem is that how I can get these values back to multiple text boxes 1 digit per text box?

    private[enter image description here][1] void button2_C[enter image description here][1]lick(object sender, EventArgs e)
    {
            string btn2 = ""+textBox1.Text+ textBox2.Text + textBox3.Text + textBox4.Text + textBox5.Text + textBox6.Text + textBox7.Text + textBox8.Text + textBox9.Text + textBox10.Text + textBox11.Text + "";
        label1.Text = btn2;

    }

    private void button1_Click(object sender, EventArgs e)
    {
       //??
    }

Answer 1

It looks a bit like this:

private void button1_Click(object sender, EventArgs e)
{
   textBox1.Text = yourConcatString[0].ToString();
   textBox2.Text = yourConcatString[1].ToString();
   //... and so on
   textBox11.Text = yourConcatString[10].ToString();
}

Why does it work?

Well, a string can be thought of as an array of char

If you index a string like this: myString[7] you'll get the 8th (remember- indexing is 0 based) char

string myString = "abcdefghijklmno";
char theEighth = myString[7]; //variable theEighth now contains 'h'

You then only need to turn the char into a string in order to assign it to a textbox Text property. .ToString() on a char will turn the char into a string:

char c = 'a';
string s = c.ToString(); //s now contains "a"

The only thing you have to remember in your code is that you concatenate into btn2 but that variable is only existing inside the scope of the button2_Click method. You cannot access it in button1_Click . You'll have to put a class-wide variable if you want to access it in both methods

Please name your buttons/textboxes before you double click on them to start adding events etc, otherwise your code will fill up with meaningless controlnames like comboBox27 - "hmm, is that the city, or the country combo? hmm..."