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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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