How to instantiate Child Object

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How to instantiate Child Object

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Ger Cannoll	Ger Cannoll posted 12 Years Ago Topic Details Share Topic
Group: StrataFrame Users Posts: 430, Visits: 507	I have the following code in my Parent BusinessObject Vlaidation to ensure that at least one Child is entered.... works fine from my main Parent/Child data entry form ChildBO myChildBO = (ChildBO)this.ChildBusinessObjects[0]; if (myChildBO.Count <= 0) { this.AddBrokenRule(this.ITR_CUSREF, "There must be at least one Detail Line"); } Now , on a different form, where I am updating just one field from the Parent Business object, the MyParent.Save() gives an index error, probably because the Child BO is not instantiated. On this partcular form , the Child BI is not used at all. How do I 'Instantiate' and populate the child Business Object in Code , so that the error does not happen (I have tried the folloiwng code, but not quite sure what it does...got from another thread) BusinessParentRelationship myRel = new BusinessParentRelationship(); myRel.ForeignKeyField = new string[] { "IDE_ITRPK" }; myRel.ParentPrimaryKeyField = new string[] {"ITR_PK"}; myRel.ParentBusinessObjectType = "ITR"; ChildBO1.ParentRelationship = myRel; ChildBO1.IdeFillByItrpk(itrBO1.ITR_PK);
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Edhy Rijo	E Edhy Rijo posted 12 Years Ago Post Details Share Post
E Group: StrataFrame Users Posts: 2.4K, Visits: 23K	Hi Gerard, Ger Cannoll (2/20/2012) How do I 'Instantiate' and populate the child Business Object in Code , so that the error does not happen Instead of trying to create a child bo that do not exist, modify your code to test if the ChildBusinessObjects.Count > 0 Edhy Rijo
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Ger Cannoll	Ger Cannoll posted 12 Years Ago Post Details Share Post
Group: StrataFrame Users Posts: 430, Visits: 507	Hi Edhy. Thanks for replying. That has done the trick....many thanks Regards, Gerard
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Edhy Rijo	E Edhy Rijo posted 12 Years Ago Post Details Share Post
E Group: StrataFrame Users Posts: 2.4K, Visits: 23K	You are welcome Gerard. Edhy Rijo
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