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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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