表单验证,(为何不能正常运行)?

qfljm 2004-01-13 01:05:13

<SCRIPT LANGUAGE="JavaScript">
window.name='TestIframe';
function CheckForm(theForm){
if (theForm.UserName.value==''){alert("请输入用户名!");theForm.UserName.focus();return false;}
if (theForm.Pass.value==''){alert("请输入密码!");theForm.Pass.focus();return false;}
return true;
}
</SCRIPT>
<form name="form1" method="post" action="" onsubmit="return CheckForm(this)" target="TestIframe">
<input name="UserName" type="text" size="30" maxlength="30">
<input name="Pass" type="password" size="30" maxlength="30">
<input type="button" name="Submit" value="登录" onClick="form.submit();"class="BUTT">
</form>

================================
代码如上:
我想在提交表单时验证用户名和密码是否为空,
条件是按钮类型必须为 type="button"

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Titandick 2004-01-13

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这样试试
============================================
<SCRIPT LANGUAGE="JavaScript">
window.name='TestIframe';
function CheckForm(theForm){
if (document.all.UserName.value==''){alert("请输入用户名!");document.all.UserName.focus();return false;}
if (document.all.Pass.value==''){alert("请输入密码!");document.all.Pass.focus();return false;}
document.all.form1.submit();
return true;
}
</SCRIPT>
<form name="form1" method="post" action=""target="TestIframe">
<input name="UserName" type="text" size="30" maxlength="30">
<input name="Pass" type="password" size="30" maxlength="30">
<input type="button" name="Submit" value="登录" onClick="return CheckForm(this);"class="BUTT">
</form>

deleteall8 2004-01-13

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<input type="button" name="Submit" value="登录" onClick="form1.submit();"class="BUTT">
应该说form1.submit()吧

qfljm 2004-01-13

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HELP

hope1983 2004-01-13

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type="button"的意思是“提交表单动作为‘无’”，哪怎样验证？

qfljm 2004-01-13

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叔叔................以经说了

条件是:按钮类型必须为 type="button"

hope1983 2004-01-13

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改为这样：

<form name="form1" method="post" action="" onsubmit="return CheckForm(this)" target="TestIframe">
<input name="UserName" type="text" size="30" maxlength="30">
<input name="Pass" type="password" size="30" maxlength="30">
<input type="submit" name="Submit" value="登录" onClick="return CheckForm(this.theForm)";"class="BUTT">
</form>