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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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