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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 233001 to 234000 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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