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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 265001 to 266000 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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