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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 182001 to 183000 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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