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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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