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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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