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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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