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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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