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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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