DataControlField.Visible Property
Gets or sets a value indicating whether a data control field is rendered.
Assembly: System.Web (in System.Web.dll)
Property Value
Type: System.Booleantrue if the DataControlField is rendered; otherwise, false. The default value is true.
Use the Visible property to show or hide DataControlField objects in a data-bound control.
If the the Visible property is false, the data values are not displayed and do not make a round-trip to the client. If you want to round-trip the data for a field that is not visible, add the field name to the DataKeyNames property of the data-bound control.
The following code example demonstrates how to use BoundField and ButtonField objects, which are derived from DataControlField, to display rows in a DetailsView control. The Visible property of the BoundField object that displays the EmployeeID column is set to false, and the column is not rendered by the DetailsView control.
<%@ page language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>ASP.NET Example</title> </head> <body> <form id="form1" runat="server"> <asp:detailsview id="DetailsView1" runat="server" allowpaging="True" datasourceid="SqlDataSource1" autogeneraterows="False" width="312px" height="152px"> <fields> <asp:boundfield visible="False" sortexpression="EmployeeID" datafield="EmployeeID"> </asp:boundfield> <asp:boundfield sortexpression="LastName" datafield="LastName" headertext="LastName"> </asp:boundfield> <asp:boundfield sortexpression="FirstName" datafield="FirstName" headertext="FirstName"> </asp:boundfield> <asp:boundfield sortexpression="Title" datafield="Title" headertext="Title"> </asp:boundfield> <asp:buttonfield text="Button"> <controlstyle font-bold="True" forecolor="Red" /> </asp:buttonfield> </fields> </asp:detailsview> <asp:sqldatasource id="SqlDataSource1" runat="server" selectcommand="SELECT * FROM Employees" connectionstring="<%$ ConnectionStrings:MyNorthwind%>"> </asp:sqldatasource> </form> </body> </html>
Available since 2.0