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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 281001 to 282000 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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