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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 259001 to 260000 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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