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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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