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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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