Quintiq file version 2.0 
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#parent: #root 
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Method GetIsUniqueCost () derived id:Method_DialogCreateEditUnitCost_GetIsUniqueCost 
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{ 
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  #keys: '[113694.2.555296993]' 
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  BaseType => //DialogCreateEditAccountCost/Method_DialogCreateEditAccountCost_GetIsUniqueCost 
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  Body: 
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  [* 
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    // Check if the cost is unique 
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    data := Dialog.Data(); 
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    /* This dialog can be open up from different place, but there is only one place we want to check the 
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       shadow unique cost, which is open from DialogCreateEditStockingPoint */ 
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    shadowowner := guard( Dialog.Parent().astype( DialogCreateEditUnit ).Data(), 
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                          null( shadow[Unit] ) ); 
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    isvalid := not exists( shadowowner, UnitCost, cost, 
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                           cost <> data, 
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                           cost.AccountName() = SelectionAccount.BoundValue() 
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                           and cost.CostDriver() = StringSelectionCostDriver.BoundValue() 
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                           and cost.Start() = GUIDateTimeSelectorStart.DateTime().Date() ); 
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    return isvalid; 
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  *] 
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} 
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