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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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