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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 174001 to 175000 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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