ResultSet.wasNull(Int32) Method
Definition
Important
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Reports whether the last column read has the value SQL NULL.
public:
virtual bool wasNull(int _ColumnID);public virtual bool wasNull (int _ColumnID);abstract member wasNull : int -> bool
override this.wasNull : int -> boolPublic Overridable Function wasNull (_ColumnID As Integer) As BooleanParameters
- _ColumnID
- Int32
The column ID.
Returns
true if the last column read has the value SQL nullNothingnullptrunita null reference (Nothing in Visual Basic); otherwise false.
Remarks
You must first call a get method, like the ResultSet.getInt method, on a column to try to read its value; then call the wasNull method to find whether the value was the SQL NULL.