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Databound dropdownlist inside a repeater

shankwheat asked
Last Modified: 2012-05-08

I have a databound dropdownlist and use OnItemDataBound to pre-select IMF Types that are stored in my database.  This
approach works fine when there are IMF Type records to show in the repeater but when there are no records I get the error message
"Conversion from type 'DBNull' to type 'String' is not valid"

Protected Sub rptIMFTypes_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs)
        Dim ddlIMFTypes As DropDownList = e.Item.FindControl("ddlIMFTypes")
        If Not e.Item.FindControl("ddlIMFTypes") Is Nothing Then
            ddlIMFTypes.Items.FindByValue(CType(System.Web.UI.DataBinder.Eval(e.Item.DataItem, "IMF_ID"), Object)).Selected = True
        End If
End Sub

<asp:Repeater id="rptIMFTypes" runat="server" OnItemDataBound="rptIMFTypes_ItemDataBound">
         <table cellpadding="3" cellspacing="1" border="0">                             
               <asp:DropDownList id="ddlIMFTypes" Runat="Server"
                    CssClass="formLabel" />

I also tried this but it didn't work

If IsDBNull(CType(System.Web.UI.DataBinder.Eval(e.Item.DataItem, "IMF_ID"), Object) = False) Then
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