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IDTSBuffer100.IsNull(Int32, Int32, Boolean) Method

Definition

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 -> unit
Public 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.

Applies to