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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 195001 to 196000 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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