I recently upgraded to MM 3.6. This was working before, and I'm at a loss as to what I'm doing to cause this issue.

I have two Biz Objects: Invoices, InvoicesItems

InvoicesItems is a child of Invoices and is displayed in a DataGridView.

When InvoicesItems is registered as a child of Invoices, when I call Invoices.NewRow(), I get an exception: "Child list for field InvoicesItems cannot be created."

After the exception, oInvoicesItem.DataSet.Tables.Count = 0 (it was 1 before the exception).

If I do not set InvoicesItems as a child, the databinding works and life is good.

Any suggestions will be GREATLY appreciated.

Stack Trace:
at System.Windows.Forms.BindingContext.EnsureListManager(Object dataSource, String dataMember)
at System.Windows.Forms.DataGridView.DataGridViewDataConnection.SetDataConnection(Object dataSource, String dataMember)
at System.Windows.Forms.DataGridView.set_DataMember(String value)
at OakLeaf.MM.Main.Windows.Forms.mmBindingStrategyDataGrid.BindData(ImmBindingDataGrid mmGrid, DataSet ds, String tableName, mmBusinessObject bizObj)
at OakLeaf.MM.Main.Windows.Forms.mmBindingStrategyDataGrid.BindData(ImmBindingDataGrid mmGrid, mmBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Windows.Forms.mmBindingStrategyDataGrid.BindData(ImmBindingDataGrid mmGrid, mmBaseBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Windows.Forms.mmDataGridView.OnBindData(mmBaseBusinessObject bindingSource, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Windows.Forms.mmUIHelper.StateChangeHandlerGrid(Control control, mmBaseBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Windows.Forms.mmDataGridView.StateChangeHandler(mmBaseBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Business.mmBusinessObject.OnStateChange(mmBusinessState bizState, String tableName, Object primaryKeyValue, Object[] primaryKeyValues)
at OakLeaf.MM.Main.Business.mmBusinessObject.CallStateChange(mmBusinessState bizState, String tableName, DataRow dr)
at OakLeaf.MM.Main.Business.mmBusinessObject.CallStateChange(mmBusinessState bizState, String tableName)
at OakLeaf.MM.Main.Business.mmBusinessObject.SetCurrentDataSet(DataSet ds, String tableName, Boolean setRequiredFields, Boolean raiseEvents, Int32 rowNumber)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.SetCurrentDataSet(DataSet ds, String tableName, Boolean setRequiredFields, Boolean raiseEvents, Int32 rowNumber)
at OakLeaf.MM.Main.Business.mmBusinessObject.SetCurrentDataSet(DataSet ds, String tableName, Boolean setRequiredFields, Boolean raiseEvents)
at OakLeaf.MM.Main.Business.mmBusinessObject.SetCurrentDataSet(DataSet ds, String tableName, Boolean setRequiredFields)
at OakLeaf.MM.Main.Business.mmBusinessObject.SetCurrentDataSet(DataSet ds, String tableName)
at OakLeaf.MM.Main.Business.mmBusinessObject.GetEmptyDataSet(DataSet ds, String tableName, String databaseKey)
at OakLeaf.MM.Main.Business.mmBusinessObjectHelperDS.GetEmptyEntityList[EntityType](String databaseKey, mmBusinessObjectGeneric`1 businessObject)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.GetEmptyEntityList(String databaseKey)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.GetEmptyEntityList()
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.StateChangeHandler(mmBaseBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Business.mmBusinessStateChangeDelegate.Invoke(mmBaseBusinessObject bizObj, mmBusinessStateChangeEventArgs e)
at OakLeaf.MM.Main.Business.mmBusinessObject.OnStateChange(mmBusinessState bizState, String tableName, Object primaryKeyValue, Object[] primaryKeyValues)
at OakLeaf.MM.Main.Business.mmBusinessObject.CallStateChange(mmBusinessState bizState, String tableName, DataRow dr)
at OakLeaf.MM.Main.Business.mmBusinessObject.NewRow(DataSet ds, String tableName, Object defaultValues)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.NewRow(DataSet ds, String tableName, Object defaultValues)
at OakLeaf.MM.Main.Business.mmBusinessObject.NewRow(DataSet ds, String tableName)
at OakLeaf.MM.Main.Business.mmBusinessObject.NewRow(String tableName)
at OakLeaf.MM.Main.Business.mmBusinessObject.NewRow()
at ATLib.Controls.ambitNavigator.OnNewButtonPressed(Object sender) in C:\Ambit\PointOfSale\ATPOSLib\ambitNavigator.cs:line 830