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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 234001 to 235000 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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