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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 75001 to 76000 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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