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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 277001 to 278000 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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