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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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