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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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