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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 184001 to 185000 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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