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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 227001 to 228000 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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