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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 203001 to 204000 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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