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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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