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Cascading Delete not Cascadingcascading. Heres what I'm using: VB .NET 2005 sp1 SQL Express 2005 For simplicity, I will give 2 of the many table adapters in the app and their relations: Sites ----- (PK) Name ContractType ContractExperation Address1 Address2 City State Zip Phone Fax VPNType VPNName VPNUser VPNPass VPNNotes VPNHostOrIP VPNUserConfigFile VPNFileName VPNFile Office -------------- Servers -------- (FK)Site (PK)Name ServerRole IPAddress NetworkType ProtocolType DNS WINS Gateway LocalUser LocalPass Location -------------- Relationship ------------ (P)Sites:Name<----------(C)Servers:Site Both Relational and Foreign Key Constraint Update Rule:Cascade Delete Rule:Cascade Accept/Reject Rule:Cascade I use an SQL command as part of the DataTable in the designer called FilLByOffice to load the dataset for a given office name for the Sites DataTable. These results are populated into a TreeView I use an SQL command called FillBySite to populate the Servers DataTable for the given Site. These results are populated into a ListView I am able to create records, and looking at the Database itself I see that they records are being saved correctly. However, when I run the SQL Command DeleteByName(@Name) from the Sites DataTable (in code), the cascade does not work, leaving orphan records in Servers. Thus, the next time the Servers DataTable is loaded, an error occurs because there is not a parent record in Sites (the parent record was deleted correctly). I cleared all other relationships to rule out problems on that end (ultimately I would like to have a few cascading deletes) and am still having a problem. What could be causing this? Any help would be greatly appreciated, I have not been able to find a similar problem by searching several forums and knowledgebases. |
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