Hello,

I am creating a mobile 5 application using CF 3.5.

I have a combo box that keeps on firing the SelectionIndexChanged event. I need this event to get an item from the combo box. However, when the combo datasource is set it will fire this. I have resolved the issue with a simple bool test. See code below. However I have noticed that when debugging the event often fires. Its hard to track down what is causing this to fire.

And in the event itself

I am thinking of 2 methods to solve this:

1) is there a way to stop the event from firing only when you need it to. (maybe a way to track down where it is being fired)

2) Inherit from the combo box and add your own custom SelectionChanged event. (anyone point me in the right direction?).

I would perfer method 2 as I have never done that before, and good to learn some thing new.

Many thanks,

Steve

I don't think you need to rebuild the logic of the event system in the combobox. All you need to do is to remove your selectedIndex changed event from the combobox's property sheet. After you've initialized everything and are ready for the event to begin firing, you wire it up:

this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);

When you're finished and you want to stop the event firing:

this.comboBox1.SelectedIndexChanged -= new System.EventHandler(this.comboBox1_SelectedIndexChanged);

I don't think you need to rebuild the logic of the event system in the combobox. All you need to do is to remove your selectedIndex changed event from the combobox's property sheet. After you've initialized everything and are ready for the event to begin firing, you wire it up:

this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);

When you're finished and you want to stop the event firing:

this.comboBox1.SelectedIndexChanged -= new System.EventHandler(this.comboBox1_SelectedIndexChanged);

Hello Steve,

I agree with John. You don’t need to re-implement a combo box only to avoid the firing of the SelectedIndexChanged event. You can do something like:

In the above example the combobox shows '0' as the selected item, but since the Eventhandler was added after setting the datasource, no SelectedIndexChanged eventis fired.