DataSet and Primary Key with multiple columns
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19-09-2019 - |
Question
How Can I use Find method in DataSet that has Primary Key make of 3 Columns?
dadSample.SelectCommand = New SqlCommand("SELECT * FROM StockBalance", conxMain)
dadSample.FillSchema(dsSample, SchemaType.Source, "StockBalance")
dadSample.Fill(dsSample, "Stock")
Dim keyColStock(3) As DataColumn
keyColStock(0) = dsSample.Tables("StockBalance").Columns("StockID")
keyColStock(1) = dsSample.Tables("StockBalance").Columns("LocationID")
keyColStock(2) = dsSample.Tables("StockBalance").Columns("StockBalanceUnitID")
dsSample.Tables("StockBalance").PrimaryKey = keyColStkBal
dRowCurrent = dsSample.Tables("StockBalance").Rows.Find("")
In Find parameter , which one I have to fill? Please help me. Thanks Everyone!
Solution
Search on an array, not a single value.
Something like:
Dim ObjectFindArray(2) as Object
...
ObjectFindArray[0] =
...
dRowCurrent = dsSample.Tables("StockBalance").Rows.Find(ObjectFindArray)
...
OTHER TIPS
Here is a post on your problem - they suggest you pass an array of columns (for the key) and cast it to object[]
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