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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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