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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 164001 to 165000 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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