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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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