Freeze during back space in a multiline textbox

Question

0.00/5 (No votes)

See more:

I'm in a multiline text box. I am using a button to backspace, which works fine for whatever line I happen to be on. When I say backspace, I'm deleting characters as I go.

When I get to the start position of (line 3 for example, it could be 2 or 5. It does the same thing on all but the first line), and click the back button again, the program freezes up for about 40 seconds, and then I can use it again. I would expect it just jump up to the end of the next line, the same as hitting the backspace on a keyboard would do.

What I have tried:

I don't get any errors. I've tried stepping through the code to try and see what's occurring at that point but nothing is showing.

private void BtnBack_Click(object sender, EventArgs e)
       {
           if (txtFCF.SelectionStart > 0)
           {
               int index = txtFCF.SelectionStart;
               txtFCF.Text = txtFCF.Text.Remove(txtFCF.SelectionStart - 1, 1);
               txtFCF.Select(index - 1, 1);
           }
       }

Posted 20-Jun-19 1:24am

Smeezy

Updated 20-Jun-19 10:54am

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

BillWoodruff · Accepted Answer · 2019-06-20T10:55:00

Solution 1

Try this:

private void BtnBack_Click(object sender, EventArgs e)
{
   txtFCF.Focus(); 
   SendKeys.Send("{BACKSPACE}");
}

Posted 20-Jun-19 10:55am

BillWoodruff

Comments

Smeezy 21-Jun-19 7:06am

I spent the last month trying to figure this out (that's probably the real cost of software right there)! Thank you so much Bill!