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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 198001 to 199000 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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