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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 238001 to 239000 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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