Add CehckBox in mulitple Column's gridview

[Golf]

I add the CheckBox inside the header of the coulmn's gridview such as in this link ASP.NET.4GuysFromRolla.com: Checking All CheckBoxes in a GridView Using Client-Side Script and a Check All CheckBox
and it work but when i add the checkboxs in multiple colum not work

 

[rcombs4]

I'm guessing...you have a typo in your javascript.

please post your code and what error you are getting.

 

[Golf]

the code here
ASP.NET.4GuysFromRolla.com: Checking All CheckBoxes in a GridView Using Client-Side Script and a Check All CheckBox