August 29, 2008 08:05pm pdt

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	[x] Attachment Details

get selected value from DataGridViewComboBox Column

Zones: Visual Studio .NET 2005, Windows Forms for .Net

Tags: VB.NET Visual Studio 2005

Hello there,

I have a slight problem.
I have a DataGridView with 4 Columns, the last of them is a ComboBox Column.
The 3 columns are databinded with a BindingSource object, filled through a DataTable (tmpDt).
The ComboBox Column is also binded to another DataTable (tmpDt2).
Everything works fine up to here.
After i select some values from the ComboBoxes, i need to get the selections and update my DB (SQL 2005) with these values.The problem is that i havent find a way to retrieve those values!!

Originally, i used DGView.EditingControl and casted it to combobox..but this gives the value from the last edited combobox (if any edited)

Is there any known solution to this?
I also attach the code snippets to realise better what Im talking about

Thanks in advance
Kostas Lagos

         
           
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             Dim tmpDt As New DataTable
Dim tmpDt2 As New DataTable
Dim BS As BindingSource = Nothing
Dim i As Integer
 
tmpDt = ParameterTableBLL.ColumnsForSortingTable(sender.GetType.GetProperty("SelectedValue").GetValue(sender, Nothing).ToString)
            BS = New BindingSource
            Bs.DataSource = tmpDt
            DGView.Name = sender.GetType.GetProperty("SelectedValue").GetValue(sender, Nothing).ToString
            DGView.DataSource = BS
            sortingNav.BindingSource = BS
            DGView.SelectionMode = DataGridViewSelectionMode.CellSelect
 
            For i = 0 To tmpDt.Rows.Count - 1
                If tmpDt.Rows(i).Item(2).ToString <> "" Then
                    bFoundContent = True
                    Exit For
                End If
            Next
       
            tmpDt2 = New DataTable
            tmpDt2.Columns.Add(New DataColumn)
 
            For i = 1 To tmpDt.Rows.Count
                tmpDt2.Rows.Add(i)
            Next
 
            ordinalColumn.DataPropertyName = tmpDt2.Columns(0).ColumnName
            ordinalColumn.DataSource = tmpDt2
            ordinalColumn.ValueMember = tmpDt2.Columns(0).ColumnName
            ordinalColumn.DisplayMember = ordinalColumn.ValueMember
 
            ordinalColumn.HeaderCell.Value = "NEW ORDINAL"
            DGView.Columns.Add(ordinalColumn)
 
'Update procedure
 
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
        Dim tmpCb As New ComboBox
 
        For i = 0 To DGView.Rows.Count - 1
            DGView.Rows(i).Cells(3).Selected = True
            tmpCb = CType(DGView.EditingControl, ComboBox)
            If Not IsNothing(tmpCb) Then
                ParameterTableBLL.updateOrdinals(DGView.Name, tmpCb.SelectedValue.ToString, DGView.Rows(i).Cells(0).Value.ToString)
            End If
            DGView.Rows(i).Cells(3).Selected = False
        Next
    End Sub

           
         

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8.6

Question Stats

Zone: Programming

Question Asked By: porcupineRabbit

Solution Provided By: iboutchkine

Participating Experts: 1

Solution Grade: A

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