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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 297001 to 298000 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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