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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 254001 to 255000 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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