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Get Mappings for a Given Table

Posted on 2014-04-29
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Last Modified: 2014-04-30
I'm using this snippet of code...

Using dc = New Context(ConnectionString)
                Dim model = New System.Data.Linq.Mapping.AttributeMappingSource().GetModel(GetType(Context))

                For Each mt In model.GetTable()
                    dBug(mt.TableName)
                    For Each dm In mt.RowType.DataMembers
                        dBug(" " + dm.MappedName + " " + dm.Type.ToString)
                    Next
                Next

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Is there a way that I can specify the TableName (As String) to return the mappings for a given table ?
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Question by:Dodsworth
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3 Comments
 
LVL 40

Expert Comment

by:Kyle Abrahams
ID: 40031201
public sub GetTable(Tablename as string)
Using dc = New Context(ConnectionString)
                Dim model = New System.Data.Linq.Mapping.AttributeMappingSource().GetModel(GetType(Context))

                For Each mt In model.GetTable()
                    if mt.TableName.ToLower = TableName.Tolower
                    dBug(mt.TableName)
                    For Each dm In mt.RowType.DataMembers
                        dBug(" " + dm.MappedName + " " + dm.Type.ToString)
                    Next
                   end if
                Next

end sub
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LVL 1

Author Comment

by:Dodsworth
ID: 40031353
oops the code I posted was mid edit.  It should have read..

For Each mt In model.GetTables()

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I was hoping that there would be a way to get the table directly using model.GetTable. But this requires a CLR Row Type.  I don't understand how a row type can return a metatable ?
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LVL 40

Accepted Solution

by:
Kyle Abrahams earned 2000 total points
ID: 40032185
public sub GetTable(TableName as string)
'code

MetaTable t = model.GetTables().Where(Function(tbl) tbl.Name == TableName).SingleOrDefault()

if t isNot Nothing then
  'do something
end if
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