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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 209001 to 210000 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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