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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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