find dropdownlist inside gridview and fill list

     
is this correct?    i am getting this error
Error=Object reference not set to an instance of an object., Timestamp=2/10/2011 3:33:46 PM

Dim itemWhse As New System.Web.UI.WebControls.DropDownList
            itemWhse = CType(e.Item.Cells(9).FindControl("lstWhse"), System.Web.UI.WebControls.DropDownList)
                    itemWhse.Items.Add(New ListItem("GA", "GA"))
                itemWhse.Items.Add(New ListItem("MO", "MO"))
                itemWhse.Items.Add(New ListItem("NY", "NY"))
                itemWhse.Items.Add(New ListItem("OR", "OR"))
                itemWhse.Items.Add(New ListItem("SALE", "SALE"))
                itemWhse.Items.Add(New ListItem("123", "123"))
WiggingAsked:
Who is Participating?
 
HainKurtConnect With a Mentor Sr. System AnalystCommented:
also try

itemWhse = DirectCast(e.Item.FindControl("lstWhse"), System.Web.UI.WebControls.DropDownList)
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HainKurtSr. System AnalystCommented:
try DirectCast

itemWhse = DirectCast(e.Item.Cells(9).FindControl("lstWhse"), System.Web.UI.WebControls.DropDownList)

and make sure the control you are looking for inside that cell, remember index start with 0 (try 8 or 10)
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WiggingAuthor Commented:
also if the item is supposed to show on edit
in which even should i add this code?

item created   or datagrid1EditCommand  or datagrid1ItemDataBound
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HainKurtSr. System AnalystCommented:
DataGrid.EditCommand Event

Occurs when the Edit button is clicked for an item in the DataGrid control.

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.datagrid.editcommand.aspx
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