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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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