[英]Masked textbox issue in VB.NET
我有两个带掩码的文本框,如果它们是有效日期,则它们具有验证。
这是两个控件的事件代码。
Private Sub txtCutOff_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) _
Handles txtCutOff.KeyDown
If e.KeyCode = Keys.Enter Then
txtPayPeriod.Focus()
txtPayPeriod.SelectAll()
End If
End Sub
Private Sub txtCutOff_Leave(sender As Object, e As System.EventArgs) _
Handles txtCutOff.Leave
If isClosing = False And isAddEdit And btnCancel.Focused = False Then
If txtCutOff.Text.Contains(" ") Or txtCutOff.Text.Length <> 10 Then
MessageBox.Show("Enter Valid Cut Off Date", _
"RMI", _
MessageBoxButtons.OK, _
MessageBoxIcon.Warning)
txtCutOff.SelectAll()
txtCutOff.Focus()
isField_Empty = True
Else
' Get date details
get_DateDetails(txtCutOff.Text)
If IsDate("#" & sMonth & "/" & sDay & "/" & sYear & "#") = False Then
MessageBox.Show("Enter Valid Cut Off Date", _
"RMI", _
MessageBoxButtons.OK, _
MessageBoxIcon.Warning)
txtCutOff.SelectAll()
txtCutOff.Focus()
isField_Empty = True
Else
isField_Empty = False
End If
End If
End If
End Sub
Private Sub txtPayPeriod_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) _
Handles txtPayPeriod.KeyDown
If e.KeyCode = Keys.Enter Then
txtSewers.Focus()
txtSewers.SelectAll()
End If
End Sub
Private Sub txtPayPeriod_Leave(sender As Object, e As System.EventArgs) _
Handles txtPayPeriod.Leave
If isClosing = False And isAddEdit And btnCancel.Focused = False Then
If txtPayPeriod.Text.Contains(" ") Or txtPayPeriod.Text.Length <> 10 Then
MessageBox.Show("Enter Valid Cut Off Date", _
"RMI", _
MessageBoxButtons.OK, _
MessageBoxIcon.Warning)
txtPayPeriod.SelectAll()
txtPayPeriod.Focus()
isField_Empty = True
Else
' Get date details
get_DateDetails(txtPayPeriod.Text)
If IsDate("#" & sMonth & "/" & sDay & "/" & sYear & "#") = False Then
MessageBox.Show("Enter Valid Cut Off Date", _
"RMI", _
MessageBoxButtons.OK, _
MessageBoxIcon.Warning)
txtPayPeriod.SelectAll()
txtPayPeriod.Focus()
isField_Empty = True
Else
isField_Empty = False
End If
End If
End If
End Sub
这是我用于检查有效日期的代码:
Sub get_DateDetails(strDate)
' Get month
sMonth = strDate.Remove(0, 5)
sMonth = sMonth.Remove(2, 3)
' Get day
sDay = strDate.Remove(0, 8)
' Get year
sYear = strDate.Remove(4, 6)
End Sub
当我测试有效日期并输入值“ 1212”,然后按Enter键时,它会提示用户该日期无效,然后再次输入值“ 1212”时,输出将不相同。 它删除了我输入的第一个字符,现在的值为“ 212”。
输入值“ 1212”并单击另一个控件时,没有问题。 它将验证日期无效,因为它会离开控件并使用Leave事件处理代码,但是当我始终按下keydown时,它将始终删除我输入的第一个字符。
尝试使用jQuery插件掩盖日期。
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