Solved

Winform Button focus on Up/Down Arrow key

Posted on 2007-11-14
5
1,423 Views
Last Modified: 2013-12-17
In Winform  I have 2 buttons . When I use the UP/Down arrow key it chnages the focus from one button to other.I want to disable this button focus chnage when Up/Down arrow key is hit on the keyboard.

Instead I wanted to us for Datagrid. So I worte the following code for Scrolling the Grid.
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
                        
      switch (keyData)
      {
            case Keys.Down:
                 SelectNextGridRow();
                 break;
            case Keys.Up:
                   SelectNextGridRow();
                 break;
      }
      return base.ProcessCmdKey(ref msg, keyData);
}

The focus on buttons also keeps chnaging when I hit Up/Down Key. How do I disable this?

0
Comment
Question by:AdibRahman77
[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
  • 2
5 Comments
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 300 total points
ID: 20281883
This part:

    return base.ProcessCmdKey(ref msg, keyData);

causes the default action for the keys to be processed.

If you don't want something to happen for certain keys then you need to NOT call the above line of code for them...

0
 
LVL 10

Assisted Solution

by:Nash2334
Nash2334 earned 150 total points
ID: 20281939
Idle_Mind is correct, just move the return to the default action and you should be OK.

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
                       
      switch (keyData)
      {
            case Keys.Down:
                 SelectNextGridRow();
            case Keys.Up:
                   SelectNextGridRow();
            default:
                   return base.ProcessCmdKey(ref msg, keyData);
      }
}
0
 
LVL 10

Expert Comment

by:Nash2334
ID: 20281944
Forgot the return statement for the up down keys...

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
                       
      switch (keyData)
      {
            case Keys.Down:
                 SelectNextGridRow();
                 return true;
            case Keys.Up:
                   SelectNextGridRow();
                   return true;
            default:
                   return base.ProcessCmdKey(ref msg, keyData);
      }
}
0
 
LVL 3

Assisted Solution

by:Aurora27
Aurora27 earned 50 total points
ID: 20283268
yep..returning a base calls memeber fn. always overrides the everthing that was done before :)

CT.
0
 
LVL 3

Expert Comment

by:Aurora27
ID: 20285668
Thanks.
0

Featured Post

How To Reduce Deployment Times With Pre-Baked AMIs

Even if we can't include all the files in the base image, we can sometimes include some of the larger files that we would otherwise have to download, and we can also sometimes remove the most time-consuming steps. This can help a lot with reducing deployment times.

Question has a verified solution.

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

Parsing a CSV file is a task that we are confronted with regularly, and although there are a vast number of means to do this, as a newbie, the field can be confusing and the tools can seem complex. A simple solution to parsing a customized CSV fi…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
Come and listen to Percona CEO Peter Zaitsev discuss what’s new in Percona open source software, including Percona Server for MySQL (https://www.percona.com/software/mysql-database/percona-server) and MongoDB (https://www.percona.com/software/mongo-…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…

717 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