asp.net - Can I Use one model attribute two times in one view -

i using visual studio 2013 framework 4.

i have 1 model attribute firstname.

this model

[required] [display(name = "investigator")] public string firstname { get; set; } 

this view using:

in dropdownlist:

@html.dropdownlistfor(model => model.firstname, model.names, "enter new ...", new { @id = "ddlnames" }) @html.validationmessagefor(model => model.firstname) 

in textbox:

@html.editorfor(model => model.firstname) 

i using dropdownlist selection , in dropdownlist have 1 option add new first name , on click on giving option add new first name text box having same name means (firstname) model of razor new entry.

so question can use firstname attribute of model dropdownlist selection , new entry well.

i getting value in dropdownlist selection when enter new first name value not coming.

please knows me solve this.

thanks in advance.