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  • Category: .NET

    how to access the data in a last row of a column

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    using the query "select last(<columnname>) from <tablename>" i can find the value in the last row of a column.
    but my question is ; i have to display this value in a messagebox, how to assign the value retrieved from this query to a string variable?
  • #275
    Hi Shruthi,
    Get the query output as dataset and then from that dataset we can get the values as shown below.

    Dim DS As DataSet
    DS = Query Output

    Dim Ls As String = DS.Tables(0).Rows(0).Item(0)
    Dim Ls As String = DS.Tables(0).Rows(0).Item("EmpName")

    Thanks and Regards,

  • #278

    If u expect a single value from the query, u can very much use the ExecuteScalar method of Command object, rather than going for dataset , datatable and finding the rows and columns.

    string strValue = cmd.ExecuteScalar();

    This Query basically gets u the data in the first row of the first column, in the result ,so if ur sure that the data fetched is having only single value. use this.

    Tats it.


  • #188303
    Hi Dear Shruthi,

    Try this coding...

    Dim Ds as new Dataset
    Dim Da as new OledbDataAdapter
    Dim Str_Value As String

    Da = New OledbDataAdapter(Query,ConnectionString)

    If Ds.Tables("Table1").Rows.Count > 0 Then



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