Making an employee punch-out project using C # WinForm--S2 2.3

Create a new employee class to store employee information

Creates a new List<> collection and instantiates three employee objects in the Load event

DataGridView binding Data Source, can display the data

Click on the Query button to query the employee information equal to the number of inputs.

Right-click Sign-in and check-out to add records

Need to use a dictionary<> double-column generic collection to store punch-card records

Determine if the employee has been checked in, can not repeat the check-in, no sign-back

New employee code is relatively simple not to do a detailed

Finally, a new form is used to show the punch record

is the content in the Dictionary<> collection

Sign in like dictionary add a record

But there's no sign-back record.

Making an employee punch-out project using C # WinForm--S2 2.3