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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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