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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 287001 to 288000 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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