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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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