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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 254001 to 255000 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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