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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 193001 to 194000 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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