Datagridview將日期時間轉換爲字符串

Question

如何將datagridview項目（日期時間格式）轉換爲字符串。

這是我的代碼：

ComboBox1.Text = DatagridView1.Item(4, 1).Value.ToString() 

有人能幫助我嗎？這是全碼：

Private Sub DataGridView1_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellClick 

    btnEdit.Visible = True 
    Dim i As Integer 
    i = DataGridView1.CurrentRow.Index 
    Dim x As String = CStr(DataGridView1.Item(4, i).Value.ToString) 
    Dim y As String = CStr(DataGridView1.Item(5, i).Value.ToString) 

    MsgBox(x) 
    MsgBox(y) 

    txtTrainID.Text = DataGridView1.Item(0, i).Value 
    txtRouteID.Text = DataGridView1.Item(1, i).Value 
    txtLine.Text = DataGridView1.Item(2, i).Value 
    cmbLine1.Text = DataGridView1.Item(3, i).Value 
    cmbLine2.Text = DataGridView1.Item(3, i).Value 
    cmbLine3.Text = DataGridView1.Item(3, i).Value 
    cmbTS.Text = x.ToString 
    cmbTA.Text = y.ToString 
    txtTrainName.Text = DataGridView1.Item(6, i).Value 
    cmbFlag.Text = DataGridView1.Item(7, i).Value 

End Sub 

Answer 1

如果你想顯示Value到ComboBox屬性必須設置爲DropDownStyle = DropDown，你不需要這個i = DataGridView1.CurrentRow.Index得到DataGridView的currentRowIndex在CellClick event

Private Sub DataGridView1_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellClick 

    ComboBox1.Text = DatagridView1.Item(4, e.RowIndex).Value.ToString() 

End Sub