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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 276001 to 277000 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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