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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 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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