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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 241001 to 242000 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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