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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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