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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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