Hello all,

I have a problem with ContentPlaceHolder. I have some controls in a ContentPlaceHolder and I wrote some JScript codes for that. When I run my program. JScript code doesn't work. I saw page's source. I see my controls' name's had change. for example:

ID="Textbox1" --> ID="ctl00_ContentPlaceHolder1_Textbox1"

So my JScript codes doesn't work. Anybody have a suggest for this problem. 

I'm realy sorry for my english language.
Thank in advance

The control ID looks like that because MasterPage inherits UserControl which implements INamingContainer. INamingContainer ensures that all child controls have unique IDs. You can get a reference to the controls ID rendered at runtime using the ClientID property.

Ryan