[Solved] Use a variable in a for loop for a panel or textbox [closed]

Question

Assuming you’ve got some number of textboxes named textbox1, textbox2, etc., you can’t just put a variable in the name and have it refer to the right textbox. You should put the textboxes in an array first.

TextBox[] textboxArray = new TextBox[] { textbox1, textbox2, textbox3, ... };
string alpha = "acdefde";
for (int i = 0; i < alpha.Length; i++)
{
    textboxArray[i].Text = alpha[i].ToString();
}

EDIT

Note that this does no error checking whatsoever, so if you give it a string that’s too long it’ll blow up. That’s not that big an issue here where the length of both items are known at compile time, but nevertheless here’s a fix: change i < array.Length to i < array.Length && i < textboxArray.Length. If you were to put this into a more general function, I’d have it throw an exception if the number of textboxes given isn’t exactly equal to the length of the string given.

Accepted Answer

Assuming you’ve got some number of textboxes named textbox1, textbox2, etc., you can’t just put a variable in the name and have it refer to the right textbox. You should put the textboxes in an array first.

TextBox[] textboxArray = new TextBox[] { textbox1, textbox2, textbox3, ... };
string alpha = "acdefde";
for (int i = 0; i < alpha.Length; i++)
{
    textboxArray[i].Text = alpha[i].ToString();
}

EDIT

Note that this does no error checking whatsoever, so if you give it a string that’s too long it’ll blow up. That’s not that big an issue here where the length of both items are known at compile time, but nevertheless here’s a fix: change i < array.Length to i < array.Length && i < textboxArray.Length. If you were to put this into a more general function, I’d have it throw an exception if the number of textboxes given isn’t exactly equal to the length of the string given.