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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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