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IGpDispatch.Exists Method (ArcObjects .NET 10.5 SDK)
ArcObjects Help for .NET developers > ArcObjects namespaces > Geoprocessing > ESRI.ArcGIS.Geoprocessing > Interfaces > IG > IGpDispatch Interface > IGpDispatch.Exists Method (ArcObjects .NET 10.5 SDK)
ArcObjects Library Reference (Geoprocessing)  

IGpDispatch.Exists Method

Checks if a data element exists.

[Visual Basic .NET]
Public Function Exists ( _
    ByRef pInputValue As Object, _
    [ByRef DataType As Object] _
) As Boolean

[C#]
public bool Exists (
    ref object pInputValue,
    ref object DataType
);
[C#]

Optional Values

DataType   To indicate that this parameter is undefined, first define a variable object Missing=Type.Missing; then pass this in as ref Missing. 
[C++]
HRESULT Exists(
  VARIANT* pInputValue,
  VARIANT* DataType,
  VARIANT_BOOL* Exists
);

[C++]

Parameters
pInputValue [in]
  pInputValue is a parameter of type VARIANT
DataType [optional]
  DataType is a parameter of type VARIANT

  To indicate this parameter is undefined pass a reference to a VARIANT with type VT_ERROR and scode value of DISP_E_PARAMNOTFOUND.
Exists [out, retval]
  Exists is a parameter of type VARIANT_BOOL

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

See Also

IGpDispatch Interface