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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 203001 to 204000 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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