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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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