Hi people,
I'd like to know if it's possible to get DataRows containing data
from different tables that are part of one single dataset?
Example:
Dim ds As New DataSet("myData Set")
'Load 3 tables with data from my DB
Dim tblEmployees As DataTable = FetchEmployeeDa ta() 'Table name =
"Employees"
Dim tblEmployeeDeta ils As DataTable = FetchEmployeeDe tailsData()
'Table name = "EmployeeDetail s"
Dim tblTasks As DataTable = FetchTaskData() 'Table name = "Tasks"
ds.Tables.Add(t blEmployees)
ds.Tables.Add(t blEmployeeDetai ls)
ds.Tables.Add(t blTasks)
Dim str() As String
'Infer a schema that define the relations between tables based on the
EmployeeSchemaP ath constant value
ds.InferXmlSche ma(EmployeeSche maPath, str)
ds.Select(???) ?
Am I on the right path?
Any suggestions?
Thanks a lot for reading! 2 1499
There is also a merge property...
"Stef" <st************ @mittalsteel.co m> schreef in bericht
news:11******** **************@ g49g2000cwa.goo glegroups.com.. . Hi people, I'd like to know if it's possible to get DataRows containing data from different tables that are part of one single dataset?
Example:
Dim ds As New DataSet("myData Set")
'Load 3 tables with data from my DB Dim tblEmployees As DataTable = FetchEmployeeDa ta() 'Table name = "Employees" Dim tblEmployeeDeta ils As DataTable = FetchEmployeeDe tailsData() 'Table name = "EmployeeDetail s" Dim tblTasks As DataTable = FetchTaskData() 'Table name = "Tasks"
ds.Tables.Add(t blEmployees) ds.Tables.Add(t blEmployeeDetai ls) ds.Tables.Add(t blTasks)
Dim str() As String 'Infer a schema that define the relations between tables based on the EmployeeSchemaP ath constant value ds.InferXmlSche ma(EmployeeSche maPath, str)
ds.Select(???) ?
Am I on the right path?
Any suggestions?
Thanks a lot for reading!
Pipo,
thank you for your quick answer.
Unfortunately, I don't see how .Merge can help in my situation because
I want to grab data from an employee and extract everything related to
him so I can fill a grid with those values or else, create an instance
of an employee class I made, etc...
Maybe I'm missing something?
If you still believe .Merge is the way to go, can you provide me with
an example?
I have checked MSDN examples about .Merge and tried some things but it
doesn't look like it's a solution that fits well my needs...
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