DropDown in InsertItemTemplate in ListView

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Hi all,
When the below code executed it is not binding the Dropdownlist in
insertitemtempl ate. But the same is binding the Dropdownlist in
EditItemTemplat e. Also, when i use LINQDataSource in insertitemtempl ate is
also binding but only if i do like below it is not working...

<InsertItemTemp late>

<asp:DropDownLi st ID="DropDownLis t1" DataSource="<%# BindDept() %>"
DataTextField=" DepartmentName" DataValueField= "DeptID" runat="server">

</asp:DropDownLis t>

</InsertItemTempl ate>

CodeBehind:

public IEnumerable BindDept()
{

EmployeeInfoDat aContext dbEmp = new EmployeeInfoDat aContext();
var LINQQuery = from dept in dbEmp.Departmen ts

select dept;return LINQQuery as IEnumerable;
}



Am i missing something?