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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 206001 to 207000 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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