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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 182001 to 183000 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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