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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 259001 to 260000 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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