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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 57001 to 58000 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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