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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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