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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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