如何解決錯誤「字符串未被識別爲Vb.net有效日期時間」

我後面的代碼如下：我想進入的日期爲每對TextBox4前顯示結束如何解決錯誤「字符串未被識別爲Vb.net有效日期時間」

Protected Sub btnSave_Click1(ByVal sender As Object, ByVal e As EventArgs) Handles Button2.Click 

    Dim dt2 As OleDbParameter 
    dt2 = cmd.CreateParameter 
    dt2.OleDbType = OleDbType.Date 
    Dim dt As String = TextBox4.InnerText 
    dt2.Value = DateTime.ParseExact(dt,"M/dd/yyyy", Nothing) 
    dt2.ParameterName = "@StartDate" 
    cmd.Parameters.Add(dt2) 

End Sub

在我的ASPX前端代碼如下

<div class="container" id="TextBox4" runat="server" width="181px" bordercolor="Black" borderstyle="Solid"> 
     <div class="row"> 
      <div class='col-sm-6'> 
      <div class="form-group"> 
       <div class='input-group date' id='datetimepicker1'> 
       <input type='text' class="form-control" /> 
       <span class="input-group-addon"> 
          <span class="glyphicon glyphicon-calendar"></span> 
       </span> 
       </div> 
      </div> 
      </div> 
      <script type="text/javascript"> 
       $(function() { 
        $('#datetimepicker1').datetimepicker(); 
       }); 
      </script> 
     </div> 
     </div>

來源

2017-07-25 Snb93

[String未被識別爲有效的DateTime異常。]（https://stackoverflow.com/questions/44031297/string-was-not-recognized-as-a-valid-datetime-exception） – VDWWD

@VDWWD感謝您的鏈接我試圖從MM更改格式爲M仍然拍攝錯誤 – Snb93

什麼輸入失敗？ –

Protected Sub btnSave_Click1(ByVal sender As Object, ByVal e As EventArgs) Handles Button2.Click 

Dim dt2 As OleDbParameter 
dt2 = cmd.CreateParameter 
dt2.OleDbType = OleDbType.Date 
dt2.Value = = TextBox4.Text 
dt2.ParameterName = "@StartDate" 
cmd.Parameters.Add(dt2)

End Sub

這樣編輯，它的作品感謝大家的反饋和幫助。

來源

2017-07-29 00:00:23 Snb93

如何解決錯誤「字符串未被識別爲Vb.net有效日期時間」

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