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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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