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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 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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