how to update multiple table in a gridview ?

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i have a gridview, i not sure how to code for updating row of a gridview that is make up of the 4 table and retrieve them and update them each new value to it respective database table?

so in the back end code how should call it in rowupdating

the database make up the gridview is make up of 4 different table

which mean this code in aspx

ASP.NET

<asp:SqlDataSource ID="SqlDataSource4" runat="server" 
        ConnectionString="<%$ ConnectionStrings:Proj %>" 
        SelectCommand="SELECT image.img, style.styleName, Card.CardName, Card.CardID, Card.price, backViewImg.backViewImg FROM backViewImg INNER JOIN Card ON backViewImg.backViewImgID = Card.backViewImgID INNER JOIN image ON Card.imgID = image.imgID INNER JOIN style ON Card.styleID = style.styleID">
    </asp:SqlDataSource>

Posted 6-Jan-12 19:31pm

cutexxbaby

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Ganesan Senthilvel · Accepted Answer · 2012-01-06T19:33:00

Herez the sample to embed 2 tables. You can extend it to 4 tables.

XML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" AllowPaging="True" AllowSorting="True" AutoGenerateEditButton="True" DataKeyNames="pk_as_item_id">
<Columns>
<asp:BoundField ReadOnly="true" DataField="pk_as_item_id" HeaderText="ID" SortExpression="pk_as_item_id" />
<asp:BoundField DataField="description" HeaderText="Description" SortExpression="description" />
<asp:TemplateField HeaderText="Location" SortExpression="loca_description" >
<EditItemTemplate>
<asp:DropDownList ID="ddl_location" runat="server" DataSourceID="SqlDataSource2" DataValueField="pk_as_loca_id" DataTextField="loca_description" >
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lbl_location" runat="server" Text='<%# Bind("loca_description") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Personal %>"
SelectCommand="SELECT [pk_as_item_id], [description], [fk_as_loca_id], [pk_as_loca_id], [loca_description] FROM [ITEMS], [LOCATIONS] WHERE [fk_as_loca_id] = [pk_as_loca_id]"
UpdateCommand="UPDATE [ITEMS] SET [pk_as_item_id] = @pk_as_item_id, [description] = @description, [fk_as_loca_id] = ???????  WHERE [pk_as_item_id] = @pk_as_item_id">
</asp:SqlDataSource>

<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:Personal %>"
SelectCommand="SELECT [pk_as_loca_id], [loca_description] FROM [LOCATIONS]">
</asp:SqlDataSource