wpf C# 如何从 calendar.SelectedDate 以 dd/MM/yyyy 格式获取日期
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C# How to get date from calendar.SelectedDate in format dd/MM/yyyy
提问by FrankieCC
I need to get selected date from calendar and show it in textbox in format dd/MM/yyyy. I have this code, but it does not work.
我需要从日历中获取选定的日期，并以 dd/MM/yyyy 格式显示在文本框中。我有这个代码，但它不起作用。
datum_odevzdani.Text = (calendar_odevzdani.SelectedDate.ToString("dd/MM/yyyy"));
回答by Clemens
The type of the Calendar.SelectedDateproperty is Nullable<DateTime>. Hence you have to access the contained DateTimeby the Nullable<T>.Valueproperty:
Calendar.SelectedDate属性的类型是Nullable<DateTime>。因此，您必须访问DateTime该Nullable<T>.Value属性所包含的内容：
if (calendar_odevzdani.SelectedDate.HasValue)
{
datum_odevzdani.Text = calendar_odevzdani.SelectedDate.Value.ToString("dd/MM/yyyy");
}
