Code to navigate Catalog products on an ASP.NET Web form

Article
11/12/2009
Use the following code to navigate through catalog products on an ASP.NET Web form. The code sample should be used within a Commerce Server project. For more information about creating a Commerce Server project, see Creating a Commerce Project.
<%@ Page Language="C#" Trace="False" %>
<%@ Import Namespace="Microsoft.CommerceServer.Runtime" %>
<%@ Import Namespace="Microsoft.CommerceServer.Runtime.Catalog" %>
<%@ Import Namespace="System.Data" %>

<script language="C#" >
    CatalogContext catalogCtx = CommerceContext.Current.CatalogSystem;
    string catalogName = @"Adventure Works Catalog";

    void Page_Load(object source, EventArgs args) {
        if (!IsPostBack) {
            UpdateCategories();
        }
    }

    void UpdateCategories() {
        RootCategoryListing.DataSource = catalogCtx.GetCatalog(catalogName).GetRootCategories();
        RootCategoryListing.DataBind();
    }

    void ProductListing_ItemCommand(object source, RepeaterCommandEventArgs args) {

        // The product id is set as part of the LinkButtons dynamically created
        // by the Repeater control.
        string productId = (string)args.CommandArgument;

        // Retrieve the details for the selected product from the Catalog
        // System.
        DataSet details =
            catalogCtx.GetCatalog(catalogName).GetProduct(productId).GetProductProperties();

        // The default row of the returned DataSet contains the product
        // details.
        DataRow product      = details.Tables[0].Rows[0];
        SelectedProduct.Text = @"You selected <b>" + (string)product["Name"] + "</b>";
        ProductID.Text       = @"Product ID: <b>" + (string)product["ProductID"] + "</b>" ;
        Desc.Text            = @"Description: <b>" + (string)product["Description"] + "</b>";
    }

    // This method is used by the nested Repeater controls used for iterating
    // through the available products in a particular category.
    DataSet GetProductListing(string category) {
        return catalogCtx.GetCatalog(catalogName).GetCategory(category).GetProducts();
    }

</script>

<html>
<head>
    <link rel="stylesheet" href="../util/style.css">
    <title>List Products</title>
</head>
<body>

    <form >

        <asp:Label
            id="SelectedProduct"
            Text="No product selected"
            /><br/>

        <asp:Label
            id="ProductID"
            /><br/>

        <asp:Label
            id="Desc"
            /><br/>

        <asp:Repeater
            id="RootCategoryListing"
            >

            <HeaderTemplate>
                <h2>Categories:</h2>
            </HeaderTemplate>

            <ItemTemplate>
                <p>
                <b><%# (string)((DataRowView)Container.DataItem)["CategoryName"] %></b><br/>

                    <asp:Repeater
                        id="ProductListing"
                        OnItemCommand="ProductListing_ItemCommand"
                        DataSource='<%# GetProductListing((string)((DataRowView)Container.DataItem)["CategoryName"]) %>'
                        >

                        <ItemTemplate>

                            <asp:LinkButton
                                id="SelectProductBtn"
                                CommandName="Select"
                                CommandArgument='<%# ((DataRowView)Container.DataItem)["ProductID"] %>'
                                >

                                <%# (string)((DataRowView)Container.DataItem)["Name"] %>

                            </asp:LinkButton>

                        </ItemTemplate>

                        <SeparatorTemplate>
                            ,&nbsp;
                        </SeparatorTemplate>

                    </asp:Repeater>
                </p>
            </ItemTemplate>

            <SeparatorTemplate>
                <p/>
            </SeparatorTemplate>

        </asp:Repeater>

    </form>

</body>
</html>
Code to navigate Catalog products on an ASP.NET Web form

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