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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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