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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 171001 to 172000 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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