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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 256001 to 257000 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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