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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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