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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 174001 to 175000 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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