Questions on UI for ASP.NET AJAX Forum

4 answers

92 views

I have Tables Customer and Two nested Table(Order and OrderDetais). the problem is i have to
add the detail table (GridTableView) if the item is expanded
so far i solve the Customer To display the Order Table but when i try to expand
Order table to display The OrderDetails it wont show up how do i do this

Note: GridTableView will must be added only/during item expand

Customer
Order
OrderDetails

    
             protected void RadGrid1_DetailTableDataBind(object source, GridDetailTableDataBindEventArgs e) 
        
                { 
        
                    if (e.DetailTableView.DataSourceID == "") 
        
                    { 
        
                        SqlDataSource2.SelectParameters["CustomerID"].DefaultValue = e.DetailTableView.ParentItem.GetDataKeyValue("CustomerID").ToString(); 
        
                        e.DetailTableView.DataSource = SqlDataSource2; 
        
                        GridTableView tableViewOrders = new GridTableView(RadGrid1); 
        
                        tableViewOrders.DataSource = SqlDataSource3; 
        
                        tableViewOrders.Width = Unit.Percentage(100); 
        
                        tableViewOrders.AutoGenerateColumns = true; 
        
                        tableViewOrders.DataKeyNames = new string[] { "OrderID" }; 
        
                        tableViewOrders.HierarchyLoadMode = GridChildLoadMode.ServerOnDemand; 
        
                        GridRelationFields relationFields = new GridRelationFields(); 
        
                        relationFields.MasterKeyField = "OrderID"; 
        
                        relationFields.DetailKeyField = "OrderID"; 
        
                        tableViewOrders.ParentTableRelation.Add(relationFields); 
        
                        e.DetailTableView.DetailTables.Add(tableViewOrders); 
        
                        e.DetailTableView.ID = "NestedOrder"; 
        
                    } 
        
                }

    
             <asp:SqlDataSource ID="SqlDataSource1" 
        
            ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" 
        
                        ProviderName="System.Data.SqlClient" 
        
                        SelectCommand="SELECT * FROM Customers" runat="server"></asp:SqlDataSource> 
        
            <asp:SqlDataSource ID="SqlDataSource2" 
        
            ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" 
        
                        ProviderName="System.Data.SqlClient" 
        
                        SelectCommand="SELECT * FROM Orders Where CustomerID = @CustomerID" runat="server"> 
        
                        <SelectParameters> 
        
                            <asp:Parameter Name="CustomerID" Type="string" /> 
        
                        </SelectParameters> 
        
                    </asp:SqlDataSource> 
        
            <asp:SqlDataSource ID="SqlDataSource3" 
        
            ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" 
        
                        ProviderName="System.Data.SqlClient" 
        
                        SelectCommand="SELECT * FROM [Order Details] where OrderID = @OrderID" runat="server"> 
        
                        <SelectParameters> 
        
                            <asp:Parameter Name="OrderID" Type="Int32" /> 
        
                        </SelectParameters> 
        
                    </asp:SqlDataSource>

    
               <telerik:RadGrid id="RadGrid1" DataSourceID="SqlDataSource1"   
        
                         ShowStatusBar="true" runat="server" AllowPaging="True"  
        
                    AllowSorting="True" AllowAutomaticUpdates="True"  
        
                    OnItemCommand="RadGrid1_ItemCommand" OnDetailTableDataBind="RadGrid1_DetailTableDataBind"> 
        
                            <MasterTableView PageSize="10" DataKeyNames="CustomerID"> 
        
                       <DetailTables> 
        
                            <telerik:GridTableView></telerik:GridTableView> 
        
                        </DetailTables> 
        
            <ExpandCollapseColumn Visible="True"></ExpandCollapseColumn> 
        
                    </MasterTableView> 
        
                <ClientSettings EnableRowHoverStyle="true"> 
        
                <Selecting AllowRowSelect="true" /> 
        
                <ClientEvents OnRowDblClick="RowDblClick" /> 
        
               </ClientSettings> 
        
                </telerik:RadGrid>

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