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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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