Handling key presses in a list box

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Hi All,

I have a requirement in my project related to a list box control. I have added file names to the list boxes. I handled "Delete" and "Enter" keys as follows.
Delete - Delete the entry with confirmation from user (with Yes and No buttons)
Enter - opens the file (selected entry on the list box)

Now if i select any item and press "Delete", a confirmation message pops up with "Yes" focused. And then i press "Enter". The selected item gets deleted but another item is getting opened. (this is because i have handled "Enter" key also). I need to avoid this (as this is distracting my basic workflow)

I browsed through various topics on internet but could not achieve this.
Can anyone help me out ?

Thanks and Regards,
YKK Reddy

Posted 5-Jan-12 19:37pm

YKK Reddy

Updated 5-Jan-12 19:38pm

v2

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Comments

Sergey Alexandrovich Kryukov 6-Jan-12 3:14am

(Sigh...) What do you mean by ListBox? Do you think there is only one type with this name?
Fully-qualified name, please. Always tag your UI library.
--SA

[no name] 6-Jan-12 3:41am

ListBox here means of type System.Windows.Forms.ListBox().

Sergey Alexandrovich Kryukov 6-Jan-12 3:15am

And make a code sample (a short one!) to show the problem. Normally, it never happens. You did something wrong.
--SA

[no name] 6-Jan-12 4:24am

private void HandleKeyPressEvent(KeyEventArgs e)
{
if (ReportGenerator.m_bIsAdmin)
{
if (e.KeyCode == Keys.Delete)
{
// Delete the file with a user confirmation
}
else if (e.KeyCode == Keys.Enter)
{
// Open the file
}
}
}

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YKK Reddy · Accepted Answer · 2012-01-12T18:26:00

Solution 1

After many trials i solved it myself.
I handled both KeyDown and PreviewKeyDown Events.
in KeyDown Event, i am doing all the implementation and in PreviewKeyDown i am doing nothing.

The code in method OnPreviewKeyDown() event is blank.

This solves my problem.

Posted 12-Jan-12 18:26pm

YKK Reddy

Updated 12-Jan-12 19:42pm

v2