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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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