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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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