I need to check Date Range entered by user is overlapping dates already present in datatable C# : I have a data table with column From Date and To Date.
User entered date using two date time picker dtFrom and dtTo. 
I need to check if date entered by user is overlapping From Date and To Date column present in data table. e.g.
columns in data table
FromDate     ToDate
01/07/2012   30/06/2013
01/07/2013   30/06/2014
01/07/2015   30/06/2016
Now if user enter
From Date    ToDate
01/07/2012   30/06/2017

I wanted to check if these dates entered by user are overlapping with dates present in data table.
Please guide and suggest me a solution for c# desktop application