Insert DateTime format in combobox

问题

I've Harvest_Base class where all DateTime formats are shown;

class Harvest_Base
{

    public static DateTime storeTime(String date)
    {

        DateTime returnValue = new DateTime();

        if (date == "")
            return returnValue;

            //Time or Date Component Does not Exist
            string[] formats= {"M/d/yyyy h:mm:ss tt", "M/d/yyyy h:mm tt", 
               "MM/dd/yyyy hh:mm:ss", "M/d/yyyy h:mm:ss", 
               "M/d/yyyy hh:mm tt", "M/d/yyyy hh tt", "M/d/yyyy h:mm", "M/d/yyyy h:mm", 
               "MM/dd/yyyy hh:mm", "M/dd/yyyy hh:mm", 
               "h:mm tt","hh:mm tt","HH:mm:ss","H:mm","HH:mm","h:mmtt"};
            DateTime result;

            if (DateTime.TryParseExact(date, formats, System.Globalization.CultureInfo.InvariantCulture, DateTimeStyles.None, out result))
                returnValue = result;
            else
                returnValue = DateTime.Today;

        return returnValue;

    }

}

I have view class in which I've two comboboxes for starttime and stoptime. I want to do something bu which these comboBoxes should show me values in "hh:mm tt" format.

My questions are:

Is binding required here? If yes, please explain with code in answer.
If binding not required then what can I do to achieve this result?

回答1:

Either you bind the combo box directly to the DateTime and apply a StringFormat on the binding, or you bind to a string representing your DateTime in the proper format. You could also use a value converter, but it's a bit overkill.

Here's the StringFormat in the Binding clause

{Binding Path=PathToTheDateTime, StringFormat={}{0:MM-dd-yyyy}}

Change the MM-dd-yyyy part to your liking.

来源：https://stackoverflow.com/questions/17593906/insert-datetime-format-in-combobox

标签

wpf

binding

combobox