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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 274001 to 275000 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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