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Events fire twice
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UpdateParameters
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Demo Incorrect Usage

UpdateParameters Collection Usage

To see this demo, set your browser->Tools->Internet Options->Languages preference to something other than en-us (English United States). This would cause the date format to display differently than my data server and would cause a type casting error. I have commented out the following section out of the code to cause the error to happen.

    <UpdateParameters>
            <asp:Parameter Name="OrderDate" Type="DateTime" />
            <asp:Parameter Name="ShipName" Type="String" />
            <asp:Parameter Name="Freight" Type="String" />
            <asp:Parameter Name="OrderID" Type="Int32" />
    </UpdateParameters>
    
 Order IDOrder DateFreightShipName
Edit10643 8/25/1997 29.4600Alfreds Futterkiste
Edit10692 10/3/1997 61.0200Alfred's Futterkiste
Edit10702 10/13/1997 23.9400Alfred's Futterkiste
Edit10835 1/15/1998 69.5300Alfred's Futterkiste
Edit10952 3/16/1998 40.4200Alfred's Futterkiste
Edit11011 4/9/1998 1.2100Alfred's Futterkiste

Source code:

Incorrect Usage source code