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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 191001 to 192000 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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