.NET c# avoid selectedIndex event when populating ComboBox

Question

I have a little problem when loading a ComboBox.

The question is that in the phase of loading data, the default selectedIndex event fires.

How can I prevent this during the load process?

Possible duplicate of [Stop comboBox's selectedIndexChanged event from firing when the form loads](http://stackoverflow.com/questions/3263240/stop-comboboxs-selectedindexchanged-event-from-firing-when-the-form-loads) — emerson.marini, Jun 14 '16 at 10:53
Possible duplicate of [How to prevent selectedindexchanged event when DataSource is bound?](http://stackoverflow.com/questions/14111879/how-to-prevent-selectedindexchanged-event-when-datasource-is-bound) — emerson.marini, Jun 14 '16 at 10:54

score 3 · Accepted Answer · answered Jun 14 '16 at 11:01

3

I suggest to use a global variable

Boolean isLoaded = false;

in your selectedIndexChange add this code

if(!isLoaded)
{
isLoaded = true;
}
else
{
 /// write your code here 
}

answered Jun 14 '16 at 11:01

hacene abdessamed

559
6
22

score 0 · Answer 2 · answered Jun 14 '16 at 11:09

I would remove the event and re add it after the loading of the data is completed.

    combo.SelectedIndexChanged -= combo_SelectedIndexChanged;
    //Do the loading of the data into the combo
    combo.SelectedIndexChanged += new EventHandler(combo_SelectedIndexChanged);

.NET c# avoid selectedIndex event when populating ComboBox

2 Answers2