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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 198001 to 199000 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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