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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 191001 to 192000 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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