multi keys in key down

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I want that when i press Ctrl + S then my check box is checked or unchecked
but when I just Press Ctrl key and before pressing S key KeyDown event is fired
i want that key down event should fired on Ctrl an S Not on Just Ctrl

Here is The Code!!

C#

private void frlLOOKUP_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Modifiers == Keys.ControlKey && e.KeyCode == Keys.S)
        {
            if (check_search.Checked)
            {
                check_search.Checked = false;
            }
            else
            {
               check_search.Checked = true;
            }
        }
    }

Posted 11-Jun-12 0:58am

Usman Hussain Attari

Updated 11-Jun-12 2:52am

Sandeep Mewara

v3

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Comments

[no name] 11-Jun-12 7:44am

Only a small hint...for checking/unchecking you dont need "a big" if statement. You can make it simply like this:

check_search.Checked= !check_search.Checked;

2 solutions

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idle63 · Answer 1 · 2012-06-11T03:25:00

Solution 2

C#

private void FormMain_KeyDown(object sender, KeyEventArgs e)
{
    if ((e.KeyCode == Keys.S) && (e.Modifiers == Keys.Control))
        checkBoxAck.Checked = !checkBoxAck.Checked;
}

Make sure that KeyPreview of the form is set to true.

Regards

Posted 11-Jun-12 3:25am

idle63

Manfred Rudolf Bihy · Answer 2 · 2012-06-11T03:37:00

There are two options for you:

Compare the keyEventArgs property Modifier against Key.Control (not Keys.ControlKey as you did in your sample).

C#

private void frlLOOKUP_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Modifiers == Keys.Control && e.KeyCode == Keys.S)
    {
        check_search.Checked = !check_search.Checked;
    }

}

If you can live with the short cut being ALT + S you can set the Text property of your CheckBox control to something like "Check&Search".
```
check_search.Text = "Check&Search";
```
This will allow you to toggle the CheckBox by pressing ALT + S.

Regards,

Manfred