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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 183001 to 184000 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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