[GIS] How to release the lock on a gdb

arcgis-10.0arcobjects

I have problems to release my gdb in ArcGIS10. My tool works with an local gdb, but I failed to release it after the process.
In Ag9.3 I can release it simply by Marshal.ReleaseComObject(workspace), but this doesn't work in AG10. Also releasing all FeatureCursors doesn't help. Only closing the whole application "deletes" the lock.
Does anyone know how to release my gdb and "delete" the lock without closing the application?

Best Answer

I had a quick look and found information on the locking scenario you seem to be having. In ArcObjects 10 there is a SetWriteLock and FreeWriteLock option.

have a look at the forum link specifically the sample from Lance Shipman from Esri http://forums.arcgis.com/threads/36881-the-performance-fgdb-api-amp-arcobjects

Have Fun, CDB

Related Solutions

[GIS] IFeatureWorkspace.CreateFeatureClass() error

This error occur when the field count is not matched to created fields.

    Dim fields As IFields = New FieldsClass
    Dim fieldsEdit As IFieldsEdit = CType(fields, IFieldsEdit)
    fieldsEdit.FieldCount_2 = 2

    ' Create Object ID field.
    Dim fieldUserDefined As IField = New Field

    Dim fieldEdit As IFieldEdit = CType(fieldUserDefined, IFieldEdit)
    fieldEdit.Name_2 = "OBJECTID"
    fieldEdit.Type_2 = esriFieldType.esriFieldTypeOID
    fieldsEdit.Field_2(0) = fieldUserDefined

    ' Create Shape field.
    fieldUserDefined = New Field
    fieldEdit = CType(fieldUserDefined, IFieldEdit)

    ' Set up geometry definition for the Shape field.
    ' You do not have to set the spatial reference, as it is inherited from the feature dataset.
    Dim geometryDef As IGeometryDef = New GeometryDefClass
    Dim geometryDefEdit As IGeometryDefEdit = CType(geometryDef, IGeometryDefEdit)

    ' By setting the grid size to 0, you are allowing ArcGIS to determine the appropriate grid sizes for the feature class. 
    ' If in a personal geodatabase, the grid size is 1,000. If in a file or ArcSDE geodatabase, the grid size
    ' is based on the initial loading or inserting of features.
    geometryDefEdit.GeometryType_2 = ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon
    geometryDefEdit.GridCount_2 = 1
    'geometryDefEdit.GridSize(0, 0)
    geometryDefEdit.HasM_2 = True
    geometryDefEdit.HasZ_2 = False
    ' Set standard field properties.
    fieldEdit.Name_2 = "SHAPE"
    fieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry

    fieldEdit.GeometryDef_2 = geometryDef
    fieldEdit.IsNullable_2 = True
    fieldEdit.Required_2 = True
    fieldsEdit.Field_2(1) = fieldUserDefined

    ' Create a field of type double to hold some information for the features.
    fieldUserDefined = New Field

    fieldEdit = CType(fieldUserDefined, IFieldEdit)


    '----------------------------------------------------------------------------------------
    '--------------------------------- CREATE FEATURE CLASS------------------------------------------
    '----------------------------------------------------------------------------------------
    ' Create a feature class description object to use for specifying the CLSID and EXTCLSID.
    Dim fcDesc As IFeatureClassDescription = New FeatureClassDescriptionClass
    Dim ocDesc As IObjectClassDescription = CType(fcDesc, IObjectClassDescription)
    '-----------------------------------------------------------------------------
    Dim pWorkspaceFactory As IWorkspaceFactory = New SdeWorkspaceFactory

if fieldEdit.FieldCount is equal to a number greater than 2 , this error will occur.

[GIS] Opening geoprocessing tools causes ArcGIS to hang

My ArcMap was crashing every time I tried to open any geoprocessing tool, or the toolbox itself. Was working fine for a week, until I auto-downloaded some updates last time I shut down the computer. Then all of a sudden I couldn't open the toolbox without crashing the program. After a very frustrating 4 hours, I fixed the problem. Not sure if this is the same thing you are experiencing, but maybe it will help others:

I reinstalled ArcMap and Python after de-activating a virus protection program a co-worker had installed (avast free antivirus program, seems like a crap program). I think what had happened was the security software had prevented a critical file from being downloaded and installed during the automatic update which was preventing python from running properly within ArcGIS.

Best Answer

Related Solutions

[GIS] IFeatureWorkspace.CreateFeatureClass() error

[GIS] Opening geoprocessing tools causes ArcGIS to hang

Related Question