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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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