What is the use of DataFormatString in Gridview?

Answer:

DataFormatString as name suggested,is used for formatting of data inside Gridview.We give DataFormatString in BoundField to format as we want like date in any format,currency and so on.

For Example:-

<asp:BoundField DataField="created_date" DataFormatString="{0:d}" HeaderText = "Created Date"/>



<asp:BoundField DataField="salary" HeaderText="Salary" DataFormatString="{0:C}" />