The following code example demonstrates how to format a date in DataBinder.Eval in asp.net controls such as GridView, DetailsView, DataList, Repeater etc. DataBinder.Eval method is used to bind data on runtime and returns result as a string.
Syntax
<%# DataBinder.Eval(Container.DataItem, "expression", "format")%>
You can use following code to format mm/dd/yyyy Date:
<%# DataBinder.Eval(Container.DataItem, "datetime", "{0: MM/dd/yyyy}")%>
As you have seen that DataBinder.Eval third parameter option that format date as a string.
Note:Use only eval method when string formatting is required because it can cause performance too slow.