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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 265001 to 266000 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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