I am using VB2010 and reading data from an Excel database using ACE.OLEDB
I want to combine columns read from the dataset into a single combobox. I can do this by creating a new column as I fill my dataset, like this
SQL="Select Position,ID,(Surname + ", " + Firstname) asFullName from MyDataBaseTable
daCon=New OleAdapter(SQL,myDataSet)
daCon.Fill(MyDataSet,"NameList")
dv=New Dataview(myDataSet.tables("Namelist")
cmbPickName.Datasource=dv
cmbPickname.DisplayMember=Position
cmbPickname.DisplayValue=ID
The problem is that as long as there is a valid value for both Surname and Firstname I get a string like "Smith, Brian"
but if there is no Firstname I thought I would just get the Surname but infact I get an empty string.
Is there some other syntax that will concatenate the fields without this happening or otherwise handling the null entry during the handling of the data adapter
I want to combine columns read from the dataset into a single combobox. I can do this by creating a new column as I fill my dataset, like this
SQL="Select Position,ID,(Surname + ", " + Firstname) asFullName from MyDataBaseTable
daCon=New OleAdapter(SQL,myDataSet)
daCon.Fill(MyDataSet,"NameList")
dv=New Dataview(myDataSet.tables("Namelist")
cmbPickName.Datasource=dv
cmbPickname.DisplayMember=Position
cmbPickname.DisplayValue=ID
The problem is that as long as there is a valid value for both Surname and Firstname I get a string like "Smith, Brian"
but if there is no Firstname I thought I would just get the Surname but infact I get an empty string.
Is there some other syntax that will concatenate the fields without this happening or otherwise handling the null entry during the handling of the data adapter
