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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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