C# Listbox Item Double Click Event

Question

I have a list box with some items. Is there anyway I can attach a double click event to each item?

Item 1 Item 2 Item 3 

If i was to double click Item 2, a Messagebox saying "Item 2" would pop up

How would i do this?

Answer 1

void listBox1_MouseDoubleClick(object sender, MouseEventArgs e) {     int index = this.listBox1.IndexFromPoint(e.Location);     if (index != System.Windows.Forms.ListBox.NoMatches)     {         MessageBox.Show(index.ToString());     } } 

This should work...check

Answer 2

WinForms

Add an event handler for the Control.DoubleClick event for your ListBox, and in that event handler open up a MessageBox displaying the selected item.

E.g.:

 private void ListBox1_DoubleClick(object sender, EventArgs e)  {      if (ListBox1.SelectedItem != null)      {          MessageBox.Show(ListBox1.SelectedItem.ToString());      }  } 

Where ListBox1 is the name of your ListBox.

Note that you would assign the event handler like this:

ListBox1.DoubleClick += new EventHandler(ListBox1_DoubleClick); 

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WPF
Pretty much the same as above, but you'd use the MouseDoubleClick event instead:

ListBox1.MouseDoubleClick += new RoutedEventHandler(ListBox1_MouseDoubleClick); 

And the event handler:

 private void ListBox1_MouseDoubleClick(object sender, RoutedEventArgs e)  {      if (ListBox1.SelectedItem != null)      {          MessageBox.Show(ListBox1.SelectedItem.ToString());      }  } 

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Edit: Sisya's answer checks to see if the double-click occurred over an item, which would need to be incorporated into this code to fix the issue mentioned in the comments (MessageBox shown if ListBox is double-clicked while an item is selected, but not clicked over an item).

Hope this helps!