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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 209001 to 210000 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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