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VLF .NET Snap-in Components - Developer's Guide | |
Sample Code for Relationship Handler which Adds New Entries to the Instance List | |
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Glossary Item Box
This relationship handler will retrieve sections associated with a department when the ‘Sections’ node (under department) is expanded in the HR Demonstration application:
Relationship Handler C# | ![]() |
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privatevoid OrgSecEmpRelationshipHandler_avExecute(object sender, RelationshipExecuteEventArgs args) { stringparent = args.avParent.avBusinessObjectType; stringchild = args.avChildBusinessObjectType; if(parent == "DEM_ORG" && child == "DEM_ORG_SEC") { string dept = args.avParent.avAKey1; LOpen.Table sectionTable = VLFApplication.GetSession(this.avManager).Table("SECTAB"); LOpen.Field departmentField = sectionTable.StringField("DEPTMENT"); LOpen.Field sectionField = sectionTable.StringField("SECTION"); LOpen.Field sectionDescField = sectionTable.StringField("SECDESC"); departmentField.Value = dept; DataTable dt = sectionTable.Select( new LOpen.Field[] { sectionField, sectionDescField }, new LOpen.Field[] { departmentField }, false, null, false, false, false, false); foreach (DataRow dr in dt.Rows) { VLF.ListEntry entry = args.avListManager.avNewInstance(); entry.avBusinessObjectType = "DEM_ORG_SEC"; entry.avAKey1 = dept; entry.avAKey2 = dr["SECTION"].ToString(); entry.avVisualID1 = dr["SECTION"].ToString(); entry.avVisualID2 = dr["SECDESC"].ToString(); } } } |