未绑定的datagridview给出字符串datetime对列到期日期无效

Question

以下是我用来创建未绑定的datagridview

的代码

Private Sub Initilaize_grid（）         Dim Itemcode As New DataGridViewColumn         Dim desp As New DataGridViewColumn         Dim type As New DataGridViewColumn         Dim uom As New DataGridViewColumn         Dim batch_no As New DataGridViewColumn         Dim expiry_date As New DataGridViewColumn         Dim qty As New DataGridViewColumn         Dim unit_price As New DataGridViewColumn         Dim disc As New DataGridViewColumn         Dim grossamt As New DataGridViewColumn         Dim disc_p As New DataGridViewColumn         Dim netamt As New DataGridViewColumn

    With Itemcode
        .Name = "Itemcode"
        .ValueType = GetType(String)
        .HeaderText = "ITEM CODE"
        .Width = 150
        .CellTemplate = New DataGridViewTextBoxCell
    End With

    With desp
        .Name = "desc"
        .ValueType = GetType(String)
        .HeaderText = "Description"
        .Width = 250
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With type
        .Name = "type"
        .ValueType = GetType(String)
        .HeaderText = "Type"
        .Width = 50
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With uom
        .Name = "uom"
        .ValueType = GetType(String)
        .HeaderText = "UOM"
        .Width = 60
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With batch_no
        .Name = "batch"
        .ValueType = GetType(String)
        .HeaderText = "Batch"
        .Width = 77
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With expiry_date
        .Name = "expiry"
        .ValueType = GetType(Date)
        .DefaultCellStyle.Format = "dd/MM/yyyy"
        .HeaderText = "Expiry"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With qty
        .Name = "qty"
        .ValueType = GetType(Integer)
        .HeaderText = "Qty"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With unit_price
        .Name = "unitp"
        .ValueType = GetType(Double)
        .HeaderText = "Unit Price"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With disc
        .Name = "disc"
        .ValueType = GetType(Double)
        .HeaderText = "Discount"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell
    End With

    With disc_p
        .Name = "discp"
        .ValueType = GetType(Double)
        .HeaderText = "Disc(%)"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell

    End With
    With grossamt
        .Name = "gamt"
        .ValueType = GetType(Double)
        .HeaderText = "Gross Amount"
        .Width = 70
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With netamt
        .Name = "namt"
        .ValueType = GetType(Double)
        .HeaderText = "Net Amount"
        .Width = 125
        .CellTemplate = New DataGridViewTextBoxCell
    End With
    With dgitemlist
        .Columns.Add(Itemcode)
        .Columns.Add(desp)
        .Columns.Add(type)
        .Columns.Add(uom)
        .Columns.Add(batch_no)
        .Columns.Add(expiry_date)
        .Columns.Add(qty)
        .Columns.Add(unit_price)
        .Columns.Add(grossamt)
        .Columns.Add(disc_p)
        .Columns.Add(disc)
        .Columns.Add(netamt)




    End With
End Sub

当我在到期列中输入日期时，我收到以下错误。我输入日期为mmddyyyy..even yyyymmdd格式给出附加的错误，因为字符串未被识别为有效的日期时间..

Answer 1

您提供的DefaultCellStyle.Format仅用于输出。不是为了解析你的输入。猜你必须根据windows系统的本地化设置输入你的日期（包括日期部分之间的斜线或点）