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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 245001 to 246000 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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