?
Solved

CTRL+A not working for textboxes

Posted on 2008-10-07
6
Medium Priority
?
1,151 Views
Last Modified: 2013-12-17
I've trying creating brand new projects and adding a single textbox and even then the CTRL+A for select all doesn't work, it just makes the beep noise.

Now the confusing part is I actually have one of my open source projects that actually works with CTRL+A and if I copy its textboxes out they'll have it working in other programs, but if I modify them then it fails to work.

I have one program with the CTRL+A working, and it doesn't have any differences in the actual textbox, and if it gets copied out to another form/program it'll be working for that specific textbox in that program as well.

Also, I'm using Visual C# Express 2008.
0
Comment
Question by:krusho
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
6 Comments
 
LVL 30

Expert Comment

by:anarki_jimbel
ID: 22666157
Just write an event handler for key_down event and put the following code into there:

            if(e.Modifiers == Keys.Control && (e.KeyCode==Keys.A ||e.KeyCode==Keys.A))
            {
                textBox2.SelectAll();
            }
0
 

Author Comment

by:krusho
ID: 22670788
I was hoping to avoid doing it for each individual textbox, since the one program that has it working doesn't have any keydown events being handled.
0
 
LVL 30

Expert Comment

by:anarki_jimbel
ID: 22673090
It means they use magic :)

Check if such a handler was attached in some other way and was not created with designer.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:krusho
ID: 22673819
The confusing part is that the program that has it's 2 textboxes working is the same as the default new project I make. If I copy one of those textboxes into the new program then that box will work until I start modifying it.
0
 

Accepted Solution

by:
krusho earned 0 total points
ID: 22673981
I figured out the solution, as to one one appears to magically work. This is rather dumb though and I don't know why Microsoft would make this matter.

this.textBox1.Multiline = false; // this can use CTRL+A
this.textBox1.Multiline = true; // this cannot use CTRL+A

The reason I was being confused is because I failed to realize that working textBox was not multiline, and that the other textBox on that form was actually a RichTextBox

this.richTextBox1.Multiline = false; // this can use CTRL+A
this.richTextBox1.Multiline = true; // this can use CTRL+A
0
 

Author Comment

by:krusho
ID: 22674043
Also, this is another work around since you may still want to use a multiline textbox:

namespace MyTextBoxDemo
{
    public class MyTextBox : System.Windows.Forms.TextBox
    {
        protected override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
        {
            if (e.Control && (e.KeyCode == System.Windows.Forms.Keys.A))
            {
                this.SelectAll();
                e.SuppressKeyPress = true;
                e.Handled = true;
            }
            else
                base.OnKeyDown(e);
        }
    }
}

just override the textbox OnKeyDown
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Have you created a query with information for a calendar? ... and then, abra-cadabra, the calendar is done?! I am going to show you how to make that happen. Visualize your data!  ... really see it To use the code to create a calendar from a q…

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question