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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 267001 to 268000 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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