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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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