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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 159001 to 160000 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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