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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 66001 to 67000 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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