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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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