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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 212001 to 213000 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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