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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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