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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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