(Hard one,any expert out threre ? ) Create object from string ? add webcontrols dynamically on page.

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

jesper_lofgren@yahoo.se - 17 Dec 2005 19:06 GMT

Hi there,

I have some webcontrols that i want to add dynamically on a page. I
have stored the path / namespace in database (ex
MyNameSpace.WebControls.Control1) to the class/webcontrol.

Lets say i have a column in database that looks like this.

PageID (int) Webcontrol (varchar)
1 MyNameSpace.WebControls.Control1
1 MyNameSpace.WebControls.Control2

Then i want to add the controls dynamically on the page, anyone know
how to do this ?
I guess i have to create a instance of the webcontrol and the add it
with Controls.add() . But how do i create the instance and add it
dynamically from a string?

Hope anyone can help me with this, some expert out there ?? :)

Thanks
Jesper

Reply to this Message

Joanna Carter [TeamB] - 17 Dec 2005 19:36 GMT

| Lets say i have a column in database that looks like this.
|
[quoted text clipped - 7 lines]
| with Controls.add() . But how do i create the instance and add it
| dynamically from a string?

Assuming the types are declared in the same assembly, then you can use this
version of Activator :

Control newControl = (Control) Activator.CreateInstance(null,
"MyNameSpace.WebControls.Control1");

If the type is in another assembly, then the first parameter should be the
assembly name.

Joanna

Signature

Joanna Carter [TeamB]
Consultant Software Engineer

Reply to this Message

(Hard one,any expert out threre ? ) Create object from string ? add webcontrols dynamically on page.

Free Magazines