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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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