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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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