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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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