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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 204001 to 205000 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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