DateTimePicker不接受来自DataGridView的日期值到编辑表格

每次我想编辑数据时，DateTimePicker会忽略或不接受DataGridView的值。我试图调试它，但它不起作用，DateTimePicker保持不变，它不会更改DataGridView的值基。DateTimePicker不接受来自DataGridView的日期值到编辑表格

下面的代码：
代码以打开编辑表单：

Dim editData As New AddData 

Private Sub editForm() 
     editData.Options = "EditData" 
     editData.load_leasee(leasee_id) 
     editData.ShowDialog() 
End Sub 

Private Sub EditToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles EditToolStripMenuItem.Click 
     editForm() 
End Sub

代码为CellClickValue功能和DataGridView1_CellClick：

Private Sub CellClickValue(ByVal selectedRow As DataGridViewRow) 
     selectedRow = DataGridView1.Rows(index) 

     editData.ExpiryDate = Format(selectedRow.Cells(15).Value, "yyyy-MM-dd").ToString() 'Expiry Date 

End Sub 

Dim selectedRow As DataGridViewRow 

Private Sub DataGridView1_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellClick 
     'Dim index As Integer 
     index = e.RowIndex 

     Console.WriteLine("index: " & index) 

     If index > -1 Then 

      CellClickValue(selectedRow) 
     Else 
      'Button2_EditForm.Enabled = False 
      disableButton_InHome() 
     End If 

    End Sub

代码编辑数据表格。该错误是在这里：

Public Property Options As String 

    Public Property ExpiryDate As String 


    Public Sub showInputs() 
     Try 
      ' 
      DateTimePicker2_ExpDt.Value = ExpiryDate.ToString() 'Ignores the value 
      DateTimePicker2_ExpDt.Text = ExpiryDate.ToString() 'Ignores the value 
      ' 
      TextBox4_ExpDt.Text = ExpiryDate 'Accepts the value 
     Catch ex As Exception 
      TextBox4_ExpDt.Text = "" 
      DateTimePicker2_ExpDt.Text = "" 
     End Try 
    End Sub 


    Private Sub loadOptions() 
     Console.WriteLine("Options: " & Options) 

     If Options = "EditData" Then 
      Me.Text = "Edit Data" 
      showInputs() 
     End If 
    End Sub

来源

2016-08-21 Guide Me

你应该像你这样在第一次设置DateTimePicker的Value财产，但请不要输入值作为一个字符串...相反，它解析为DateTime structure：

Dim ResultDate As DateTime 
If DateTime.TryParse(ExpiryDate, ResultDate) = True Then 
    DateTimePicker2_ExpDt.Value = ResultDate 
Else 
    'Do what you want when 'ExpiryDate' could not be parsed into a DateTime object. 
End If

来源

2016-08-21 08:44:46

它的工作，但是当我再次编辑时，DateTimePicker再次重置。 –

我发现每次在关闭表单后清除或重置DateTimePicker时，它都不起作用。 –

@GuideMe：在'DateTime.TryParse'行上放置一个断点并告诉我'ExpiryDate'的值是多少。 –

DateTimePicker不接受来自DataGridView的日期值到编辑表格

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