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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Accountant	Elizabeth Lincoln	France	1 2 3 4 5
2	Sales Associate	Jaime Yorres	England	1 2 3 4 5
3	Marketing Manager	Georg Pipps	Bulgaria	1 2 3 4 5
4	Sales Agent	Matti Karttunen	Brazil	1 2 3 4 5
5	Owner	Pascale Cartrain	Argentina	1 2 3 4 5
6	Owner	Paul Henriot	Germany	1 2 3 4 5
7	Marketing Assistant	Georg Pipps	Argentina	1 2 3 4 5
8	Accountant	Patricio Simpson	Austria	1 2 3 4 5
9	Accounting Manager	Patricio Simpson	England	1 2 3 4 5
10	Marketing Assistant	Elizabeth Lincoln	Argentina	1 2 3 4 5
11	Sales Associate	Pascale Cartrain	USA	1 2 3 4 5
12	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
13	Sales Manager	Jaime Yorres	England	1 2 3 4 5
14	Marketing Manager	Matti Karttunen	France	1 2 3 4 5
15	Sales Associate	Pascale Cartrain	France	1 2 3 4 5
16	Accounting Manager	Matti Karttunen	Argentina	1 2 3 4 5
17	Accounting Manager	Patricio Simpson	Austria	1 2 3 4 5
18	Sales Representative	Georg Pipps	Argentina	1 2 3 4 5
19	Marketing Assistant	Patricio Simpson	Brazil	1 2 3 4 5
20	Marketing Assistant	Antonio Moreno	England	1 2 3 4 5
21	Sales Manager	Jaime Yorres	Austria	1 2 3 4 5
22	Sales Agent	Antonio Moreno	England	1 2 3 4 5
23	Sales Agent	Paul Henriot	France	1 2 3 4 5
24	Sales Representative	Hanna Moos	Spain	1 2 3 4 5
25	Sales Manager	Georg Pipps	France	1 2 3 4 5
26	Accounting Manager	Matti Karttunen	England	1 2 3 4 5
27	Sales Associate	Georg Pipps	USA	1 2 3 4 5
28	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
29	Sales Associate	Hanna Moos	USA	1 2 3 4 5
30	Sales Consultant	Elizabeth Lincoln	USA	1 2 3 4 5
31	Sales Manager	Georg Pipps	Bulgaria	1 2 3 4 5
32	Owner	Georg Pipps	Argentina	1 2 3 4 5
33	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
34	Owner	Georg Pipps	Bulgaria	1 2 3 4 5
35	Marketing Manager	Paul Henriot	France	1 2 3 4 5
36	Sales Representative	Paul Henriot	Brazil	1 2 3 4 5
37	Marketing Assistant	Matti Karttunen	Bulgaria	1 2 3 4 5
38	Sales Associate	Antonio Moreno	Italy	1 2 3 4 5
39	Sales Associate	Howard Snyder	Spain	1 2 3 4 5
40	Accounting Manager	Patricio Simpson	Brazil	1 2 3 4 5
41	Sales Representative	Patricio Simpson	Italy	1 2 3 4 5
42	Sales Associate	Elizabeth Lincoln	Italy	1 2 3 4 5
43	Sales Consultant	Paul Henriot	Germany	1 2 3 4 5
44	Sales Associate	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
45	Sales Representative	Pascale Cartrain	Argentina	1 2 3 4 5
46	Sales Manager	Paul Henriot	Spain	1 2 3 4 5
47	Accountant	Hanna Moos	USA	1 2 3 4 5
48	Sales Consultant	Antonio Moreno	Spain	1 2 3 4 5
49	Marketing Assistant	Antonio Moreno	Germany	1 2 3 4 5
50	Sales Representative	Matti Karttunen	England	1 2 3 4 5
51	Owner	Georg Pipps	USA	1 2 3 4 5
52	Sales Consultant	Howard Snyder	Argentina	1 2 3 4 5
53	Accounting Manager	Matti Karttunen	Austria	1 2 3 4 5
54	Sales Representative	Pascale Cartrain	England	1 2 3 4 5
55	Sales Agent	Elizabeth Lincoln	Brazil	1 2 3 4 5
56	Sales Representative	Antonio Moreno	Germany	1 2 3 4 5
57	Sales Agent	Hanna Moos	England	1 2 3 4 5
58	Accountant	Elizabeth Lincoln	Germany	1 2 3 4 5
59	Sales Associate	Howard Snyder	Bulgaria	1 2 3 4 5
60	Sales Consultant	Paul Henriot	Bulgaria	1 2 3 4 5
61	Marketing Assistant	Howard Snyder	Bulgaria	1 2 3 4 5
62	Accountant	Hanna Moos	France	1 2 3 4 5
63	Accounting Manager	Jaime Yorres	USA	1 2 3 4 5
64	Sales Associate	Elizabeth Lincoln	Germany	1 2 3 4 5
65	Sales Agent	Elizabeth Lincoln	USA	1 2 3 4 5
66	Sales Agent	Antonio Moreno	Argentina	1 2 3 4 5
67	Sales Representative	Antonio Moreno	Germany	1 2 3 4 5
68	Marketing Manager	Jaime Yorres	Germany	1 2 3 4 5
69	Marketing Assistant	Antonio Moreno	Italy	1 2 3 4 5
70	Marketing Manager	Georg Pipps	Argentina	1 2 3 4 5
71	Sales Associate	Antonio Moreno	France	1 2 3 4 5
72	Sales Consultant	Elizabeth Lincoln	France	1 2 3 4 5
73	Accounting Manager	Jaime Yorres	Austria	1 2 3 4 5
74	Marketing Assistant	Antonio Moreno	USA	1 2 3 4 5
75	Sales Consultant	Patricio Simpson	Bulgaria	1 2 3 4 5
76	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
77	Sales Consultant	Matti Karttunen	Austria	1 2 3 4 5
78	Marketing Assistant	Paul Henriot	Austria	1 2 3 4 5
79	Sales Representative	Pascale Cartrain	Brazil	1 2 3 4 5
80	Owner	Hanna Moos	Italy	1 2 3 4 5
81	Sales Representative	Hanna Moos	France	1 2 3 4 5
82	Marketing Manager	Antonio Moreno	Spain	1 2 3 4 5
83	Accountant	Jaime Yorres	Brazil	1 2 3 4 5
84	Owner	Antonio Moreno	Austria	1 2 3 4 5
85	Marketing Manager	Patricio Simpson	France	1 2 3 4 5
86	Accounting Manager	Jaime Yorres	Germany	1 2 3 4 5
87	Sales Representative	Patricio Simpson	France	1 2 3 4 5
88	Marketing Manager	Elizabeth Lincoln	England	1 2 3 4 5
89	Sales Agent	Howard Snyder	Germany	1 2 3 4 5
90	Owner	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
91	Sales Consultant	Hanna Moos	Brazil	1 2 3 4 5
92	Sales Manager	Pascale Cartrain	Spain	1 2 3 4 5
93	Sales Consultant	Matti Karttunen	Argentina	1 2 3 4 5
94	Sales Agent	Paul Henriot	Brazil	1 2 3 4 5
95	Marketing Assistant	Patricio Simpson	Brazil	1 2 3 4 5
96	Sales Associate	Patricio Simpson	USA	1 2 3 4 5
97	Marketing Assistant	Pascale Cartrain	England	1 2 3 4 5
98	Sales Representative	Paul Henriot	Bulgaria	1 2 3 4 5
99	Owner	Antonio Moreno	Brazil	1 2 3 4 5
100	Marketing Manager	Elizabeth Lincoln	France	1 2 3 4 5


...71 72 73 74 75 76 77 78 79 80 ... Item 74001 to 75000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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