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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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