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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 250001 to 251000 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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