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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 74001 to 75000 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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