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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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