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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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