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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 200001 to 201000 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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