Exception When Binding GridView

Sep 28, 2013

I am trying to bind GridView when I'm getting next exception: 'System.Data.DataRowView does not contain a property with the name "AvailabilityDate".

Below are my asp GridView and Vb codes with both purple lines where the exception happens.

<asp:GridView ID="gvAvailability" runat="server"
PageSize="50" ShowFooter="True"
BackColor="White" BorderColor="#CC9966" BorderStyle="None"
BorderWidth="1px" CellPadding="4" AutoGenerateEditButton="True"
AutoGenerateDeleteButton="True" EmptyDataText="No records found!"
GridLines="None" AllowPaging="True" AutoGenerateColumns="False">

[Code] .....

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