Question

I have a filterControl on Main.aspx page , and this filterControl has another control called filterList.

I want to handle for listbox in filterlist control from main.aspx.

how can do it ?

need your helps.

Answer 1

Try this:

User control code behind

public event Action<string> MyHandler = delegate { };

protected void myListBox_SelectedIndexChanged(object sender, Eventargs e)
{
   // ....
   this.MyHandler(this.myListBox.SelectedValue);
}

ASPX

<uc1:YourControl OnMyHandler="myPageHandler" ....

ASPX code behind

protected void myPageHandler(string customMessage)
{
   // your awesome stuff goes here
}