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Microsoft KB Archive/247912

From BetaArchive Wiki
Knowledge Base

PRB: Property Page of Data-Aware Controls Becomes Blank with CRViewer

Article ID: 247912

Article Last Modified on 1/11/2001


  • Microsoft Visual Basic 6.0 Professional Edition
  • Microsoft Visual Basic 6.0 Enterprise Edition

This article was previously published under Q247912


When trying to set the DataSource or RowSource properties of the DataList or DataCombo controls in a project that also contains the Crystal Reports Smart Viewer control, you may see one or all of the following symptoms:

  • The entire property page of the control goes blank.
  • Visual Basic stops responding and requires you to end the task.
  • You may receive the following error:

vb6.exe Application Error
The instruction at "0x0055d620" referenced memory at "0x0000003"
The memory could not be read.

NOTE: The exact memory locations may vary from system to system.

Although these symptoms have been verified only with the DataList and DataCombo controls, the problem can occur with any data-aware control.


According to Seagate Technical Support, to work around this, remove the Smart Viewer Control from the project when you need to edit the DataSource or RowSource properties of any data-aware control that causes the symptoms listed above. After the properties have been edited, add the Smart Viewer Control back into the project.


Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

For more information regarding this issue, please call Seagate Software at:

1-604-669-8379 Technical Support

1-800-877-2340 General Information

Additional query words: hang crash exception

Keywords: kbprb kb3rdparty KB247912