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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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