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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 228001 to 229000 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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