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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...21 22 23 24 25 26 27 28 29 30 ... Item 26001 to 27000 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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