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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 140001 to 141000 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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