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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 238001 to 239000 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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