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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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