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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 274001 to 275000 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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