.net 在事件处理程序中传递文本框值
我有以下代码来验证两个文本框条目,以确保它们是有效日期。我的问题是,我不知道如何将文本框值作为参数传递,因此我可以使用该方法处理两个不同文本框的文本验证。以下是我到目前为止的情况:.net 在事件处理程序中传递文本框值,.net,vb.net,winforms,events,.net,Vb.net,Winforms,Events,我有以下代码来验证两个文本框条目,以确保它们是有效日期。我的问题是,我不知道如何将文本框值作为参数传递,因此我可以使用该方法处理两个不同文本框的文本验证。以下是我到目前为止的情况: Private Sub txtBirthdate_Validating(sender As System.Object, e As System.ComponentModel.CancelEventArgs) Handles txtBirthdate.Validating, txtSpouseBirthday.Val
Private Sub txtBirthdate_Validating(sender As System.Object, e As System.ComponentModel.CancelEventArgs) Handles txtBirthdate.Validating, txtSpouseBirthday.Validating
Try
If String.IsNullOrWhiteSpace(sender.ToString) Then
'Do Nothing
Else
Dim ReturnDate As DateTime
ReturnDate = validator.CheckIsValidDate(sender.ToString)
txtBirthdate.Text = ReturnDate.ToShortDateString
End If
Catch ex As Exception
Throw
End Try
End Sub
谢谢 您需要将
发送者
对象强制转换为文本框
,以获取属性:
Private Sub txtBirthdate_Validating(sender As Object, e As CancelEventArgs) _
Handles txtBirthdate.Validating, txtSpouseBirthday.Validating
Try
With DirectCast(sender, TextBox)
If String.IsNullOrWhiteSpace(.Text) Then
'Do Nothing
Else
Dim ReturnDate As DateTime
ReturnDate = validator.CheckIsValidDate(.Text)
.Text = ReturnDate.ToShortDateString
End If
End With
Catch ex As Exception
Throw
End Try
End Sub
拉尔斯,太棒了。谢谢你的回答!