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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 61001 to 62000 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="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ 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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