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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 249001 to 250000 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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