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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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