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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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