IDTSBuffer100.IsNull(Int32, Int32, Boolean) Method
Definition
Important
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Checks whether a specified column is null.
public:
void IsNull(int hRow, int hCol, [Runtime::InteropServices::Out] bool % pfNull);public void IsNull (int hRow, int hCol, out bool pfNull);abstract member IsNull : int * int * bool -> unitPublic Sub IsNull (hRow As Integer, hCol As Integer, ByRef pfNull As Boolean)Parameters
- hRow
- Int32
The handle of the row.
- hCol
- Int32
The handle of the column.
- pfNull
- Boolean
An out parameter that indicates whether the column value is null.
Remarks
This method checks whether the data stored in the buffer column is null or empty. Managed data flow component developers do not call this method, but instead use the IsNull method of the managed PipelineBuffer class.