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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 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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