Fail to execute IsNull for NULL geometry property

[christinebao]

This defect is reported from Map 3D.

Steps:

1. Connect to the attached SHP file.
2. Make a calculated field of Area2D(Geometry) named Calculation1.
3. Open DataTable and sort the Calculation1 column, the data disappear.

Cause: This SHP file is special, that it contains records which are all full, even for Geometry property. As the attached screen shot shows. Thus when re-order the calculated field and query from datasource, the following code fails (ShpReader.h line 629):

else if (0 == wcscmp (propertyName, mLogicalGeometryPropertyName))

ret = (eNullShape == mShape->GetShapeType ());

because mShape is NULL. Then the select command fails, and cause nothing show on DataTable.

Fix: The above code should check mShape first. If mShape is NULL then the return value (means IsNULL) should be set true.

[christinebao]

The SHP file is too large to attach. Please refer to the defect in Clarify for the test data.