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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 183001 to 184000 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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