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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 208001 to 209000 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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