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Datagridview Blank Value

Hi,

I have a bound datagridview and I'm currently having an issue with null values.

I have 2 fields which are number datatypes, in some cases I have to delete a value in these fields and basically leave it blank, the problem is that vb.net refuses to save a null value to the database for these fields, I have no problem saving null values with string datatypes, but numbers have to be set to 0, so I end up with a table full of 0 values when we need to remove values.

I don't understand why when a field is a string, vb.net can save a null value, but if it's a number, it doesn't seem to detect that the field has changed to a null value; The dataset is set to accept Null values for these fields; I'm not sure what's missing!

Thank you

ASKER CERTIFIED SOLUTION

Nasir Razzaq

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FCapo

ASKER

my datatypes are set to System.Double for these 2 fields which are connected to number fields in my access database

itmarsolutions

how you saving the values to database ?

FCapo

ASKER

I basically pass the updated dataset from vb.net to my database :

Public Function savePrjAccessDataset(ByVal prjData As nclMisDataSet) As Boolean
Try
prjAccessTableAdapter.Update(prjData)
Return True
Catch ex As Exception
End Try

End Function

Nasir Razzaq

And do you get error on this update line?