Do a "Configure Return Type" on the Operation which is bound to the datagrid. Right click on the operation -> Configure Return Type. This will generate a new data type with a new property corresponding to MySQL column.
Add a column to DataGrid either in Code OR right click on DataGrid -> Configure Columns and add new column with 'HeaderText' and 'Bind To field' values.
You can access and bind to a database ????!!!!!
Here it refers to Bind to DataGrid!
Configure Return Type will query the function which inturn talks to database and fetches all the columns.
So the new data type being generated should have the new fields in the table.
On 'configuring the column' and adding a new one a new column is generated for the existing datagrid which could populate the value of new field on binding.