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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 60001 to 61000 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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