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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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