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Accessing control buried in another control
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21/09/2010 10:53:29
Timothy Bryan
Sharpline Consultants
Conroe, Texas, États-Unis
 
 
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Forum:
ASP.NET
Catégorie:
Autre
Titre:
Accessing control buried in another control
Versions des environnements
Environment:
ASP.NET
Application:
Web
Divers
Thread ID:
01482165
Message ID:
01482165
Vues:
128
Hi all,

I have used place holder controls fairly often for adding user controls dynamically at runtime. Typically, I can access a placeholder directly and just add a control like this.
ctrlSpecialSpecs specialSpecControl = (ctrlSpecialSpecs)Page.LoadControl("~/ORCSelection/UserControls/ctrlSpecialSpecs.ascx");
           
// Add the Control to the Placeholder
this.holdSpecialSpecs.Controls.Add(specialSpecControl);
Currently I have a place holder that is inside another complex control and accessing it this way just doesn't work as the control is not visible. I tried to do a find control like this, but get a null reference exception on the control.
mmPlaceHolder defendantHolder = (mmPlaceHolder)this.Page.FindControl("holdDefendant");
defendantHolder.Controls.Add(defendantDisplay);
It is defined on the page like this; very straight forward.
 <mm:mmPlaceHolder ID="holdDefendant" runat="server" >
 </mm:mmPlaceHolder>
Anybody have any ideas on how to get access to this control?
Thanks
Tim
Timothy Bryan
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