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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 182001 to 183000 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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