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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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