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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 242001 to 243000 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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