[Last Call] Learn about multicloud storage options and how to improve your company's cloud strategy. Register Now

x
?
Solved

Implement undo, cut, paste, copy functionality

Posted on 2003-11-25
3
Medium Priority
?
446 Views
Last Modified: 2011-10-03
How can I implement cut paste copy and undo functionality in my text boxes?  the shortcuts work, crtl-c and what not.  Are they methods I can easily call (how would I know which control had the focus before the menu item was selected)?
0
Comment
Question by:jjacksn
[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
  • 2
3 Comments
 
LVL 20

Accepted Solution

by:
TheAvenger earned 1000 total points
ID: 9823309
You have the methods TextBox.Copy, TextBox.Cut, TextBox.Paste and TextBox.Undo. Using them you can make all the things you asked for.

To find out which control has the focus, you can do this:

private Control FindFocused (Control parent) {
  foreach (Control ctrl in parent.Controls)
    if (ctrl.ContainsFocus)  // The focus is on this control or one of it's children
      if (ctrl.Focused)  // This control is focused
        return ctrl;
      else  // A child of this control is focused
        return FindFocused (ctrl);
  return null;  // No focus at all in this control
}

and then in your form call:

Control ctrl = FindFocus (this);
if (ctrl is TextBox) {
  TextBox tBox = (TextBox)ctrl;
  tBox.Copy();
  ....
}
0
 
LVL 5

Author Comment

by:jjacksn
ID: 9826864
Does a control retain the focus even when the menu item is clicked?
0
 
LVL 20

Expert Comment

by:TheAvenger
ID: 9826876
An interesting question... Try executing the code I gave you in the menu handler. If it returns null, then not, otherwise yes
0

Featured Post

Enroll in October's Free Course of the Month

Do you work with and analyze data? Enroll in October's Course of the Month for 7+ hours of SQL training, allowing you to quickly and efficiently store or retrieve data. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

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

Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …
Suggested Courses

650 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