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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 233001 to 234000 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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