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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 208001 to 209000 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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