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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 220001 to 221000 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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