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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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