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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 248001 to 249000 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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