Dont under stand tabs.SelectedIndex = (Request["index"]==null) ? 0 : Convert.ToInt32(Request["index"]);

Question

User1503786127 posted

On Page : Banner.ascx.cs  it has a line of code:

tabs.SelectedIndex = (Request["index"]==null) ? 0 : Convert.ToInt32(Request["index"]);

I dont understand what it does can some one help me .

Also on HTML : it has <%=Global.GetApplicationPath(Request)%> Where does the parameter Request come from

Thanks

Anh

 <%# ((ASPNET.StarterKit.TimeTracker.BusinessLogicLayer.TabItem) Container.DataItem).Name %>

Answer 1

User-821131223 posted
What

"statement ? value1 : value2"

does is evaluate to value1 is the statement is true, otherwise it evaluates to value2. In your example, if Request["index"] is a null value (Request["index"]==null returns True) then SelectedIndex will be 0, if it isn't a null value then SelectedIndex will be Convert.ToInt32(Request["index"]). In other words, Request["index"] as a number.

Request is actually a member of the Page object. You can shorten it to just Request but its full name is Page.Request. The Request object is a container for items on the query string, items sent as part of a Form submission, items sent as cookies and some server variables also.