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Rank: Newbie
Groups: Member
Joined: 9/17/2012
Posts: 2
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Greetings everyone and compliments to the staff, who made a really good job with EO products.
I'm having problems while using the EO control SlideMenu in a custom webcontrol of mine.
The error occurs during Render method, throwing a null reference.
Object gets initialised correctly during Init method of the WebControl, by allocating a new instance and then setting an ID.
Does the control expect any other other value in order to render?
What am I missing?
I'm using EO 9 on a 3.5 framework.
StackTrace:
EO.Web.Internal.cc.l() +309
EO.Web.Internal.cc.ai() +28
EO.Web.WebControlBase.OnLoad(EventArgs e) +88
EO.Web.WebControlBase.br() +270
EO.Web.WebControl.k(HtmlTextWriter A_0) +57
EO.Web.BaseNavigator.a(HtmlTextWriter A_0) +130
EO.Web.WebControlBase.n(HtmlTextWriter A_0) +97
EO.Web.WebControlBase.Render(HtmlTextWriter writer) +215
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
My.WebControl.Render(HtmlTextWriter writer)
Best regards.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,195
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Hi,
You can not call RenderControl on our controls. Our control requires a full life cycle so OnLoad, OnPreRender, OnRender has to be called on the right order. This means you have to add it into the page's control tree as early as possible and then let the page's "normal" life cycle go through its course.
Thanks!
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Rank: Newbie
Groups: Member
Joined: 9/17/2012
Posts: 2
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OnLoad, OnPreRender and OnRender are exposed to server controls too.
Does it mean i'm still able to emulate the page life cycle, in order to get the control working?
If not, is there any way to handle an EO product programmatically?
Thanks in advance.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,195
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Hi,
We would neither recommend nor support you to emulate the page's life cycle. You can use our controls programmatically/dynamically, but you must add them into the page's control tree early enough and let the page to handle everything else. For example, you can have your control derive from the Panel control and then add our control as a child control of yours. You can not simulate other things or call the control's RenderControl directly.
Thanks
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