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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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