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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 183001 to 184000 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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