In datagrdiview how to disable all sunday date

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C#

Note it is windows application.


In the run mode Output as follows.

when i select the month in calendar that month all dates display in datagridview.it is working fine.

In the form load i want all checkbox defaultlly selected in datagridview.

Seond condition, in that month all sundays date to be disable in datagridview.

I want the above two condition in datagridview using csharp

For example i select the febuary month that month date is display in datagridview. in the february month all sundays date in february month set to be disable in datagridview.

Select Dates

Checkbox 1/2/2013
to
28/2/2013

Note it is windows application.