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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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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