if (document.ADDUser.UserName.value.length == 0)
Window.Alert("请输入您的用户名")
end function
这段代码中adduser是一个表单名。但是,显示不出来是怎么回事啊
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window.alert能不能这样用啊?(在线等)
各位xdjm,小妹初学asp,很多不懂,向各位请教了 function CheckForm() if (document.ADDUser.UserName.value.length == 0) Window.Alert("请输入您的用户名") end function 这段代码中adduser是一个表单名。但是,显示不出来是怎么回事啊
以下代码在IE6.0测试通过(for you reference only):
<form name="ADDUser" method="post" action="adduser.asp">
<input type="text" name="UserName">
<input type=submit>
</form>
<script language=vbscript>
set document.ADDUser.onsubmit = GetRef("checkForm")
function checkForm()
if document.ADDUser.UserName.value = 0 then
alert("请输入您的用户名")
checkForm = false
else
checkForm = true
end if
end function
</script>
<script language=vbscript>
sub submit_onclick
if document.ADDUser.UserName.value="" then
window.alert "你没有输入用户名哦!"
document.ADDUser.UserName.focus()
end if
end sub
</script>
<form name="ADDUser" method="post">
<input type="text" name="UserName">
<input type="button" name="submit">
</form>
CheckForm()">
<script language="VBScript">
function checkForm()
if document.ADDUser.UserName.value.length="0"
alert("请输入您的用户名")
return false
end if
end function
</script>
<form name="ADDUser" action="test.jsp">
<input type=submit>
</form>
<script language=vbscript>
set document.ADDUser.onsubmit = GetRef("checkForm")
function checkForm()
if document.ADDUser.UserName.value.length = 0
alert("请输入您的用户名")
checkForm = false
else
checkForm = true
end if
end function
</script>
你要在需要检查的地方调用这个函数,比如:
<script language=vbscript>
Function check()
if document.all.UserName.value="" then
window.alert "你没有输入用户名哦!"
'VBSCRIPT曾经用msgbox
document.all.UserName.focus()
'设置焦点在UserName输入框处,就好象VB的Text1.SetFocus
Exit Function
end if
form1.submit
End Function
</script>
<form name="form1" method="post">
<input type="text" name="UserName">
<input type="button" name="check()">
</form>