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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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