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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 200001 to 201000 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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