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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 258001 to 259000 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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