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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 184001 to 185000 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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