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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 239001 to 240000 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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