70-528 NET Framework 2.0-Web-based Client Development Online Class

Demo Question 10.

You work as a Microsoft ASP.NET developer at EliteCertify.com. EliteCertify.com uses the Microsoft Visual Studio .NET 2005 as their application development platform. You use a Microsoft Windows XP Professional client computer named EliteCertify -WS528 as your development computer. Internet Information Services (IIS) is installed on EliteCertify -WS528. You are developing a page named Products.aspx in a Web application. You need to allow external vendors to insert product information into the Products.aspx page. You decide to implement this functionality by using a DropDownList control. You add the following code to the Products.aspx page. You need to ensure that the DropDownList control defaults to [None] and that [None] is the first item in the DropDownList. What should you do? (Each correct answer presents part of the solution. Choose two.)

A. Set the DataSourceID property of the DropDownList control to "".
B. Add the string "[None]" to the Items property of the DropDownList control.
C. Change the SelectCommand property SqlDataSource control to " SELECT [None], [CategoryID], [CategoryName] FROM [Categories]".
D. Set the AppendDataBopundItems property of the DropDownList control to True.


Display Answer

Answer: B, D

Explanation: You must add a static item to the DropDownlist in the Items property. You should then set the AppendDataBopundItems property of the DropDownList control to True to prevent DataBound items from overwriting the static item. Incorrect