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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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