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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 241001 to 242000 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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