Question

VB中如何使Command1只有在text2里输入东西后才可点击?代码？

Answer 1

Private Sub Form_Load()
Command1.Enabled = False
End Sub
Private Sub Text2_Change()
If Text2.Text="" Then
Command1.Enabled = False
Else
Command1.Enabled = True
End If
End Sub

或者

Private Sub Form_Load()
Command1.Enabled = False
End Sub
Private Sub Text2_Change()
If Len(Text2.Text) > 0 Then
Command1.Enabled = True
Else
Command1.Enabled = False
End If
End Sub

Answer 2

if text2.text<>"" then commnad1.enble=true