限制10位 Private Sub txt1_KeyPress(KeyAscii As Integer) If LenB(StrConv(txt1.Text+chr(KeyAscii), vbFromUnicode)) >10 then KeyAscii=0 End Sub
textbox.maxlength=10(自己定的长度)
对呀,用maxlength属性,多了就自动没了
你把要放入textbox中的东西放到一个字符串中,让侯控制他的到小不就行乐
VB中英文与中文的长度是一致的!用maxlength属性就行了!
API:限制的是字节数 Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWND As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Public Const EM_LIMITTEXT = &HC5 Public Const CB_LIMITTEXT = &H141 Public Const Max_Char = 10Call SendMessage(txtName.hWND, EM_LIMITTEXT, Max_Char, 0&) 换上 CB_LIMITTEXT 还可以控制COMBO的字符串长度。
Private Sub txt1_KeyPress(KeyAscii As Integer)
If LenB(StrConv(txt1.Text+chr(KeyAscii), vbFromUnicode)) >10 then KeyAscii=0
End Sub
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWND As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Public Const EM_LIMITTEXT = &HC5
Public Const CB_LIMITTEXT = &H141
Public Const Max_Char = 10Call SendMessage(txtName.hWND, EM_LIMITTEXT, Max_Char, 0&)
换上 CB_LIMITTEXT 还可以控制COMBO的字符串长度。
我还真不知道中文、英文长度一致的,
你在数据库里定义一个10个字符的字段,看看插入10个汉字会不会出错