1
我使用的是vb.net和winforms。Vb.net/DataGridView/ComboBox列
我有一個綁定DataGridView的窗體。在DGV上,我有5列ComboBox。我正在使用EditingControlShowing甚至可以捕獲組合框選擇。 (見下面的代碼)。 這裏是問題:
當我用一個組合框單擊一個單元格,然後進行選擇,然後更新基礎單元格(單元格=選定的值),然後單擊另一個DGV行就會出現故障。如果在我更新數據源的相應行上的Cell I do和EndEdit後,它似乎可以正常工作。
如何確定相應的數據源行是否可以自動執行此操作?
Private Sub dataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs) _
Handles DataGridView1.EditingControlShowing
Try
Debug.Print("entered the EditingControlShowing")
Dim ColName As String = Me.DataGridView1.Columns(Me.DataGridView1.CurrentCell.ColumnIndex).Name
If ColName = "Col1" Then 'Or ColName = "Col2" Or ColName = "Col3" Or ColName = "Col4" Or ColName = "Col5" Then
'the column you want to cast
Dim cmb As ComboBox = TryCast(e.Control, ComboBox)
RemoveHandler cmb.SelectedIndexChanged, AddressOf cmb_SelectedIndexChanged
AddHandler cmb.SelectedIndexChanged, AddressOf cmb_SelectedIndexChanged
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Sub cmb_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
Try
Me.DataGridView1.Rows(Me.DataGridView1.CurrentRow.Index).Cells(Me.DataGridView1.CurrentCell.ColumnIndex).Value = CType(sender, ComboBox).SelectedItem
'
' HERE IF I PUT MyDataSet.Tables(0).Rows(?).EndEding it works - but how to konw what row?
'
UpdateAvgColumn(Me.DataGridView1.CurrentRow.Index)
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
您是否在DataGridView中具有唯一標識符?如果是這樣,您可以使用該值查找數據集中的相應行。 – N0Alias 2011-03-07 01:31:07
嘗試'MyDataSet.Tables(0).Rows(Me.DataGridView1.CurrentRow.Index).EndEding' – NeverHopeless 2014-03-02 21:14:04