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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 241001 to 242000 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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