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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 283001 to 284000 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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