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visual studio .net general : DataBinding Error



HollyylloH
9/12/2005 4:13:02 PM
I have created a VB form in Visual Studio.net with connections to a SQL 2000
database. I am pulling info from 3 tables into the form. I have created a
Next button that takes me from record to record using this code:

Me.BindingContext(DsAll1, "Table1").Position += 1
Me.BindingContext(DsAll1, "Table2").Position += 1
Me.BindingContext(DsAll1, "Table3").Position += 1

I am recieving this error on Table3:
--
An unhandled exception of type 'System.Exception' occurred in
system.windows.forms.dll

Additional information: DataBinding could not find a row in the list that is
suitable for all bindings
--
I noticed in the Autos Window Table3:
Me.BindingContext(DsAll1, "Table1").Position Value = 1
Me.BindingContext(DsAll1, "Table2").Position Value = 1
Me.BindingContext(DsAll1, "Table3").Position Value = -1

Table3" Value = -1. I have tried unsuccessfully to reset this to 1 on
loading the form using:
Me.BindingContext(DsAll1, "Table3").Position = 1

HollyylloH
9/13/2005 2:34:31 PM
It appears that the Null values in the SQL tables are the culprit here. I set
the default values of all fields to fix this.

Does anyone know how to keep SQL from setting Null values for blank fields?

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