Referencing a panel on a webform from an usercontrol

[Lokhan Wong]

My question is whether it's possible to change the
properties of a panel, that resides on the webform
containing the usercontrol, in the usercontrol itself.

Like this:

<form>
<asp:panel visibility=false .... </asp panel>
<user:control> //a function here turns the visibilty to
true </user:control>
</form>

Greetz,

Lokhan Wong
[email]Lokhan_wong@hotmail.com[/email]

//cogito ergo sum

[Kevin Kenny]

Lokhan Wong wrote:

>My question is whether it's possible to change the
>properties of a panel, that resides on the webform
>containing the usercontrol, in the usercontrol itself.
>
>Like this:
>
><form>
><asp:panel visibility=false .... </asp panel>
><user:control> //a function here turns the visibilty to
>true </user:control>
></form>
>
>Greetz,
>
>Lokhan Wong
>Lokhan_wong@hotmail.com
>
>//cogito ergo sum
>
>

This is possible:

In the usercontrol code behind I have:

private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
if(Page.IsPostBack)
{
// Find the control
System.Web.UI.WebControls.Panel ctrl =
(System.Web.UI.WebControls.Panel) Page.FindControl("MyPanel");

// Make it visible
ctrl.Visible = true;

// Abd Add some text
Label lbl = new Label();
lbl.Text = " Now you see me!";
ctrl.Controls.Add(lbl);
}
}

On the aspx page containing the usercontrol:

<form id="Form1" method="post" runat="server">
<asp:panel id="MyPanel" visible="False" runat="server">Hello</asp:panel>
<kk:MyControl id="MyControl" runat="server" />
</form>

From a design perspective I'd be wary of doing this because you are
creating a dependancy in the containing page and introducing some tight
coupling that will affect the user control's re-use in other pages..

HTH
Kev

[Lokhan Wong]

It worked. Thanks for the info.

The reason why I used it this way is because I wanted to
make a registering page made of several steps. Putting
every step in a seperate page would be unwise. Also
putting every step in a seperate panel on the page would
make the page unmanageable. So by putting every step in
its own usercontrol I can manage the code more easily.

>-----Original Message-----
>Lokhan Wong wrote:
>

>>My question is whether it's possible to change the
>>properties of a panel, that resides on the webform
>>containing the usercontrol, in the usercontrol itself.
>>
>>Like this:
>>
>><form>
>><asp:panel visibility=false .... </asp panel>
>><user:control> //a function here turns the visibilty to
>>true </user:control>
>></form>
>>
>>Greetz,
>>
>>Lokhan Wong
>>Lokhan_wong@hotmail.com
>>
>>//cogito ergo sum
>>
>>

>This is possible:
>
>In the usercontrol code behind I have:
>
>private void Page_Load(object sender, System.EventArgs e)
>{
> // Put user code to initialize the page here
> if(Page.IsPostBack)
> {
> // Find the control
> System.Web.UI.WebControls.Panel ctrl =
>(System.Web.UI.WebControls.Panel) Page.FindControl

("MyPanel");

>
> // Make it visible
> ctrl.Visible = true;
>
> // Abd Add some text
> Label lbl = new Label();
> lbl.Text = " Now you see me!";
> ctrl.Controls.Add(lbl);
> }
>}
>
>On the aspx page containing the usercontrol:
>
><form id="Form1" method="post" runat="server">
> <asp:panel id="MyPanel" visible="False"

runat="server">Hello</asp:panel>

> <kk:MyControl id="MyControl" runat="server" />
></form>
>
> From a design perspective I'd be wary of doing this

because you are

>creating a dependancy in the containing page and

introducing some tight

>coupling that will affect the user control's re-use in

other pages..

>
>HTH
>Kev
>
>
>.
>