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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 173001 to 174000 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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