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scalar variable "@original_OrderID".
- Thread starter wallm
- Start date
jbenson001
Programmer
need more info. what is your datasource, what object are you displaying the data in?
- Thread starter
- #3
Here's the code, using SQL SERVER EXPRESS 2005 on my local machine.
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "
<script runat="server">
</script>
<html xmlns=" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>You Can Delete Order Detail Information for Orders that Have Included Shipments
of the Selected Product
</h2>
<asp:SqlDataSource ID="productListingDataSource" ConnectionString="<%$ ConnectionStrings:NWConnectionString %>"
SelectCommand="SELECT [ProductID], [ProductName] FROM [Products]" Runat="server">
</asp:SqlDataSource>
<asp
ropDownList ID="productSelector" Runat="server" DataSourceID="productListingDataSource"
DataTextField="ProductName" DataValueField="ProductID" AutoPostBack="True">
</aspropDownList>
<asp:SqlDataSource ID="orderDetailsForProduct" DataSourceMode="DataReader" ConnectionString="<%$ ConnectionStrings:NWConnectionString %>"
SelectCommand="SELECT [OrderID], [ProductID], [UnitPrice], [Quantity] FROM [Order Details] WHERE ([ProductID] = @ProductID2)"
Runat="server" DeleteCommand="DELETE FROM [Order Details] WHERE [OrderID] = @original_OrderID AND [ProductID] = @original_ProductID">
<DeleteParameters>
<asp
arameter Type="Int32" Name="OrderID"></asparameter>
<asparameter Type="Int32" Name="ProductID"></asparameter>
</DeleteParameters>
<SelectParameters>
<asp:ControlParameter Name="ProductID2" Type="Int32" ControlID="productSelector"
PropertyName="SelectedValue"></asp:ControlParameter>
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="orderDetailsGridView" Runat="server" AutoGenerateColumns="False" DataSourceID="orderDetailsForProduct" DataKeyNames="OrderID,ProductID" BorderColor="Tan" CellPadding="2" BackColor="LightGoldenrodYellow" BorderWidth="1px" ForeColor="Black" GridLines="None">
<FooterStyle BackColor="Tan"></FooterStyle>
<PagerStyle ForeColor="DarkSlateBlue" HorizontalAlign="Center" BackColor="PaleGoldenrod"></PagerStyle>
<HeaderStyle Font-Bold="True" BackColor="Tan"></HeaderStyle>
<AlternatingRowStyle BackColor="PaleGoldenrod"></AlternatingRowStyle>
<Columns>
<asp:CommandField DeleteText="Delete Order Line Item" ShowDeleteButton="True"></asp:CommandField>
<asp:BoundField HeaderText="Order ID" DataField="OrderID" SortExpression="OrderID">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:BoundField>
<asp:BoundField HeaderText="Quantity" DataField="Quantity" SortExpression="Quantity" DataFormatString="{0:d}">
<ItemStyle HorizontalAlign="Right"></ItemStyle>
</asp:BoundField>
<asp:BoundField HeaderText="Unit Price" DataField="UnitPrice" SortExpression="UnitPrice" DataFormatString="{0:c}">
<ItemStyle HorizontalAlign="Right"></ItemStyle>
</asp:BoundField>
</Columns>
<SelectedRowStyle ForeColor="GhostWhite" BackColor="DarkSlateBlue"></SelectedRowStyle>
</asp:GridView> </div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "
<script runat="server">
</script>
<html xmlns=" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>You Can Delete Order Detail Information for Orders that Have Included Shipments
of the Selected Product
</h2>
<asp:SqlDataSource ID="productListingDataSource" ConnectionString="<%$ ConnectionStrings:NWConnectionString %>"
SelectCommand="SELECT [ProductID], [ProductName] FROM [Products]" Runat="server">
</asp:SqlDataSource>
<asp
ropDownList ID="productSelector" Runat="server" DataSourceID="productListingDataSource"DataTextField="ProductName" DataValueField="ProductID" AutoPostBack="True">
</asp
ropDownList> <asp:SqlDataSource ID="orderDetailsForProduct" DataSourceMode="DataReader" ConnectionString="<%$ ConnectionStrings:NWConnectionString %>"
SelectCommand="SELECT [OrderID], [ProductID], [UnitPrice], [Quantity] FROM [Order Details] WHERE ([ProductID] = @ProductID2)"
Runat="server" DeleteCommand="DELETE FROM [Order Details] WHERE [OrderID] = @original_OrderID AND [ProductID] = @original_ProductID">
<DeleteParameters>
<asp
arameter Type="Int32" Name="OrderID"></asparameter><asp
arameter Type="Int32" Name="ProductID"></asparameter></DeleteParameters>
<SelectParameters>
<asp:ControlParameter Name="ProductID2" Type="Int32" ControlID="productSelector"
PropertyName="SelectedValue"></asp:ControlParameter>
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="orderDetailsGridView" Runat="server" AutoGenerateColumns="False" DataSourceID="orderDetailsForProduct" DataKeyNames="OrderID,ProductID" BorderColor="Tan" CellPadding="2" BackColor="LightGoldenrodYellow" BorderWidth="1px" ForeColor="Black" GridLines="None">
<FooterStyle BackColor="Tan"></FooterStyle>
<PagerStyle ForeColor="DarkSlateBlue" HorizontalAlign="Center" BackColor="PaleGoldenrod"></PagerStyle>
<HeaderStyle Font-Bold="True" BackColor="Tan"></HeaderStyle>
<AlternatingRowStyle BackColor="PaleGoldenrod"></AlternatingRowStyle>
<Columns>
<asp:CommandField DeleteText="Delete Order Line Item" ShowDeleteButton="True"></asp:CommandField>
<asp:BoundField HeaderText="Order ID" DataField="OrderID" SortExpression="OrderID">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:BoundField>
<asp:BoundField HeaderText="Quantity" DataField="Quantity" SortExpression="Quantity" DataFormatString="{0:d}">
<ItemStyle HorizontalAlign="Right"></ItemStyle>
</asp:BoundField>
<asp:BoundField HeaderText="Unit Price" DataField="UnitPrice" SortExpression="UnitPrice" DataFormatString="{0:c}">
<ItemStyle HorizontalAlign="Right"></ItemStyle>
</asp:BoundField>
</Columns>
<SelectedRowStyle ForeColor="GhostWhite" BackColor="DarkSlateBlue"></SelectedRowStyle>
</asp:GridView> </div>
</form>
</body>
</html>
Elegabalus
Programmer
In the SQLDataSource, make sure the OldValuesParameterFormatString="original_{0}"
This will allow you to use the @original_<fieldname> syntax.
This behavior was by default in beta1 of .NET 2.0, I believe, but you have to explicity set the oldvalues format now.
Alternatively, if you changed the name of your variables to @original_OrderID and @original_ProductID to @OrderID and @ProductID, you'd probably also get it to work.
This will allow you to use the @original_<fieldname> syntax.
This behavior was by default in beta1 of .NET 2.0, I believe, but you have to explicity set the oldvalues format now.
Alternatively, if you changed the name of your variables to @original_OrderID and @original_ProductID to @OrderID and @ProductID, you'd probably also get it to work.
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