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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 151001 to 152000 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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