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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 244001 to 245000 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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