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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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