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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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