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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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