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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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