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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 55001 to 56000 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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