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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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