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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 62001 to 63000 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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