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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 232001 to 233000 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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