Background: I am customizing an existing ASP .NET / C# application. It has it's own little "framework" and conventions for developers to follow when extending/customizing its functionality. I am currently extending some
of it's administrative functionality, to which the framework provides a contract to enforce implementation
of the GetAdministrationInterface() method, which returns System.Web.UI.Control. This method is called during the Page_Load() method
of the page hosting the GUI interface.
Problem: I have three buttons in my GUI, each
of which have been assigned an Event Handler. My administration GUI loads up perfectly fine, but clicking any
of the buttons doesn't do what I expect them to do. However, when I click them a second time, the buttons work.
I placed breakpoints at the beginning
of each event handler method and stepped through my code. On the first click, none
of the event handlers were triggered. On the second click, they fired.
Any ideas?
Example
of Button Definition (within GetAdministrationInterface)
public override Control GetAdministrationInterface()
{
// more code...
Button btn = new Button();
btn.Text = "Click Me!";
btn.Click += new EventHandler(Btn_Click);
// more code...
}
Example
of Event Handler Method Definition
void Btn_Click(object sender, EventArgs e)
{
// Do Something
}
Page_Load Method that calls GetAdministrationInterface
protected void Page_Load(object sender, System.EventArgs e)
{
if (!Page.IsAsync)
{
List<AdministrationInterface> interfaces = <DATABASE CALL>;
foreach(AdministrationInteface ai in interfaces)
{
placeholderDiv.Controls.Add(ai.GetAdministrationInterface());
}
}
}
