Fire event in Custom Control

[kalkumar]

Hi,
I am designing the custom control which contains a Panel. Panel header row contains some text, Imagebutton. That text and text for image button is passed through the Properties. For the Image button I need to add the click event when the user clicks on Image button I need to transfer to another page.
How to provide the Click event to Image button and how to fire the click event in custom control?
I can write like this:
public event EventHandler Click
TableCell c=new TableCell();
ImageButton i=new ImageButton();
i.text=//get text from one property.
i.Click += new EventHandler(this.ib_Click);
c.Controls.add(i);

Protected virtual void ib_click(Object sender, EventArgs e)
{
if (Click != null)
{
Click(this, e); //Click is the EventHandler
}
}

This event is not firing.
How to handle the event.

 

[jmeckley]

this should work. when are you attaching the delegate to the event?

when adding controls to a page you must add them in the OnInit(). Do custom controls contain a similiar event?

this event must be added everytime, does your control check of postback?

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[kalkumar]

Hi,
Can you explain me a bit clear about these two lines:
when adding controls to a page you must add them in the OnInit(). Do custom controls contain a similiar event?

this event must be added everytime, does your control check of postback?

 

[jmeckley]

when adding controls to a page you must add them in the OnInit(). Do custom controls contain a similiar event?

if you dynamically add a control to a ascx or aspx it must be added in the [tt]protected override void OnInit(EventArgs e) { }[/tt]. Is there something similiar when designing a custom control?

this event must be added everytime, does your control check of postback?

Bad:

If(!this.Page.IsPostBack)
{
   TableCell c=new TableCell();
   ImageButton i=new ImageButton();
   i.text=//get text from one property.
   i.Click += new EventHandler(this.ib_Click);
   c.Controls.add(i);
}

Good:

TableCell c=new TableCell();
ImageButton i=new ImageButton();
i.text=//get text from one property.
i.Click += new EventHandler(this.ib_Click);
c.Controls.add(i);

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[kalkumar]

Hi,
I am not adding the event on aspx page. Iam adding this event on Custom control page i.e .cs page.

Thanks in adavnce