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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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