dynamically changing an asp User Control ?

[ilPostino]

ok, so I have my asp.net application.

I want a single page which can load asp user controls and at runtime. How
can this be done? I don't want to drag the control onto the page because
then I can't change it ... or can I ?

thanks

C

 

[Philip Rieck]

You can use something like this:

this.Controls.Add( Page.LoadControl("MyControl.ascx"));

If you want to put it in a specific place, use a placeholder or panel
control:

In your .aspx:
<asplaceHolder id="dynamicCtl" runat="server" />

in your .aspx.cs :

....
if( someFlag)
{
dynamicCtl.Controls.Add( Page.LoadControl("MyControl.ascx"));
}
else
{
dynamicCtl.Controls.Add( Page.LoadControl("MyOtherControl.ascx"));
}
....


Note that dynamically placing controls has some behavior changes you should
think about, especially the fact that the usercontrol's child controls
will not keep their state anymore.



-Philip

 

[ilPostino]

Thanks - nice and easy!

C

You can use something like this:

this.Controls.Add( Page.LoadControl("MyControl.ascx"));

If you want to put it in a specific place, use a placeholder or panel
control:

In your .aspx:
<asplaceHolder id="dynamicCtl" runat="server" />

in your .aspx.cs :

...
if( someFlag)
{
dynamicCtl.Controls.Add( Page.LoadControl("MyControl.ascx"));
}
else
{
dynamicCtl.Controls.Add( Page.LoadControl("MyOtherControl.ascx"));
}
...


Note that dynamically placing controls has some behavior changes you should
think about, especially the fact that the usercontrol's child controls
will not keep their state anymore.



-Philip