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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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