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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 242001 to 243000 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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