在MVC中以字符串格式绑定可为null的日期时间

Question

i am unable to solve problem from last two days.

@Html.TextBoxFor(model => model.myObject.dateAssign, String.Format("{0:MM/dd/yy}"))

here, dateAssign is nullable datetime. it may be or maybe not have value.

i am keep getting following error

Index (zero based) must be greater than or equal to zero and less than the size of the argument list.

please give me some hint or direction

Answer 1

String.Format() needs a second argument (see documentation) - in your case your date.

Have a look at this page for date formats.

Then you would write something like

@Html.TextBox(model => String.Format("{0:MM/dd/yy}", model.myObject.dateAssign))  

Or, if you want to use @Html.TextBoxFor , you can annotate your property like this:

// in your model:
[DisplayFormat(DataFormatString = "{0:MM/dd/yy}", ApplyFormatInEditMode= true]
DateTime? dateAssign { get; set; }  

// and in your view:
@Html.TextBoxFor(model => model.myObject.dateAssign)