我有几个文本框和掩码文本框在winform中,需要在继续之前检查它们是否为空、null或为nothing。
目前我的代码大部分都能按预期工作,如果有一个空的文本框,我会得到一条消息告诉用户文本框为空,并退出子程序,但是出于某种原因,它没有检查掩码文本框。
也许我错了,它正在检查它们,但由于它们有掩码,它们不被视为空或null。
如果您能帮忙检查掩码文本框是否为空,将不胜感激。
这是代码:
Private Sub btnCargarInformacion_Click(sender As System.Object, e As System.EventArgs) Handles btnCargar.Click
For Each myControl As Control In Me.GroupBox1.Controls
If TypeOf (myControl) Is TextBox Then
If myControl.Text.Equals(String.Empty) Then
MessageBox.Show(String.Format("Please Fill the following Textboxes: {0}", String.Join(",", myControl.Name)))
End If
If myControl.Text.Equals(String.Empty) Then
Exit Sub
End If
End If
Next
Dim PartePersonalTableApt As New PersonalObraDataSetTableAdapters.PartePersonalTableAdapter
Dim PersonalObTableApt As New PersonalObraDataSetTableAdapters.PersonalObTableAdapter
PartePersonalTableApt.ClearBeforeFill = True
PartePersonalTableApt.FillByFecha(PersonalObraDataSet.PartePersonal, txtDate.Text, txtDepartamento.Text, txtTurno.Text)
PersonalObTableApt.ClearBeforeFill = True
PersonalObTableApt.Fillby(PersonalObraDataSet.PersonalOb)
End Sub