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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 205001 to 206000 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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