Home/ Questions/Q 8348861
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-09T07:48:59+00:00

I want to add multiple datatables to a datasource witout creating each time (loop)

  • 0

I want to add multiple datatables to a datasource witout creating each time (loop) a dataset by merging the current datasource to the new datatable.

This is my code :

' Those table are the same but have different data
' Tables() array, it's an example

For Each oTable As System.Data.DataTable In Tables
    DisplayResult(oTable, ColumnsAreCreated)
Next

Then I want to display the result in the grid :

Private Function DisplayResults(ByVal oTable As System.Data.DataTable, ByRef ColumnsAreCreated As Boolean) As Boolean

    If oTable.Rows.Count > 0 Then
        Dim compt As Integer = 0

        If Not ColumnsAreCreated Then
            Dim NewColumn As DevExpress.XtraGrid.Columns.GridColumn
            For Each oColumn As DataColumn In oTable.Columns
                NewColumn = grdv.Columns.AddField(oColumn.ColumnName)
                NewColumn.OptionsColumn.ReadOnly = True
                NewColumn.Visible = True
                NewColumn.VisibleIndex = compt
                compt += 1
            Next
            ColumnsAreCreated = True
            ' I want to do something like : grdctrl.DataSource += oTable
            grdctrl.DataSource = oTable

            grdv.OptionsView.ColumnAutoWidth = False
            grdv.BestFitColumns()
        End If
    End If

    Return True
End Function

I don’t want to erase each time the current data, i want to do a concatenation of the current datasource in the gird with the following datatables, one by one.

I don’t want to create a dataset, put in it the datatables and finally provide the gridcontrol the dataset.

There’s a way to do it without creating a dataset ?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    If I understand you correctly you want to “merge” all results, right?
    Why not simply do that before binding to the grid in a single table?
    If you want to merge after binding – bind the PGrid to a data source and member “Table” and then simply use Table.Merge(AddedTable). This should also automatically update your grid.
    make sure you do not set keys to the table, otherwise you will get a regular merge (values will be updated if they are different and not added)
    Hope I understood the question 🙂

    • 0