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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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