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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 209001 to 210000 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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