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know if a gridview is empty from javascript

var grid=(document.getElementById("<%=gvAssignedTickets.ClientID%>"))?document.getElementById("<%=gvAssignedTickets.ClientID%>"):null;
if (grid)
 {
  if (grid.rows.length>0)
   {
    ...
   }
 }

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know if a gridview is empty from javascript

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