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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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