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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 237001 to 238000 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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