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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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