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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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