Wizard control and postbacks

[Guest]

I have a Wizard control with each step using a user control. It seems the
page_load of each user control is called everytime a postback event occurs in
any step. Is there away to communicate to a user control that is it now the
current "page" so I can restrict some of the initialization to occur only
when the step is visible? I have a couple of controls that hit the database
and don't want the overhead if the use isn't even looking at that Wizard step.

Thanks for any hints on this.

 

[neilmcguigan]

if you want code to run only on first page load check the IsPostBack
property of the page, like this:

protected void Page_Load(object sender, EventArgs e)
{
if(Page.IsPostBack)
{
//code gets run only on postback
}
else
{
//code gets run only on initial load
}
}

 

[Guest]

I may be green, but not quite that green

Because the data I'm retrieving isn't saved in the viewstate and the
Calendar control needs it everytime it renders from a selectionChanged or
other event I'm reloading the data in that user controls PageLoad event,
postback or not. What I was hoping to do was not load it if the user control
is on a different Wizard step than the one currently being show.

Thanks!

 

[neilmcguigan]

ah, sorry, didn't read it thoroughly enough

in Page_Load of the control, you can get a reference to the containing
wizard step like this:

WizardStep step = (WizardStep)this.Parent;

you can get a reference to the Wizard like this:

Wizard wizard = step.Wizard

play with wizard.ActiveStep and .ActiveStepIndex to see if you can do
what you want

cheers

nm

 

[Guest]

Thanks Neil, this.Parent is what I was looking for!