编程论坛 → ASP.NET技术论坛

验证失败,什么哪出错了呢?

swalia 发布于 2008-01-08 17:13， 1801 次点击

function showHint(str)
{
    if (str.length > 0 && str != null)
    {
        Customer.innerHTML="验证用户名....";
        //var url="checkuser.asp?sid=" + Math.random() + "&CustomerID=" + str
        var url="../Member/checkData.aspx?CustomerID=" + str
        xmlHttp=GetXmlHttpObject(stateChanged)
        xmlHttp.open("GET", url , true)
        xmlHttp.send(null)
    }
    else
    {
        document.getElementById("Customer").innerHTML=""
    }
}
function stateChanged()
{

    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
    {

        var flag1;
        var resStr = xmlHttp.responseText.substring(0,4);

        if(resStr == "true")
        {
            flag1 = resStr;
        }
        else
        {
            flag1 = xmlHttp.responseText.substring(0,5)
        }

        if (flag1 =="false")
        {
            document.getElementById("Customer").innerHTML= "<img src='../RegImg/pic_right.gif'>  " +"恭喜你，此用户名未被使用！";
            document.getElementById("userID").value= "YES";
        }
        else if(flag1 =="true")
        {
            document.getElementById("Customer").innerHTML="<img src='../RegImg/pic_error.gif'>  " +"对不起,此用户名已经存在！";
            document.getElementById("Customer").className = "ss2"
            document.getElementById("userID").value= "NO";
            return false;
        }
        else
        {

            document.getElementById("Customer").innerHTML="<img src='../RegImg/pic_error.gif'>  " +"验证失败!!";
            document.getElementById("Customer").className = "ss2"
            document.getElementById("userID").value= "NO";
            return false;
        }
    }
    else
        return false;

    return true;
}
checkData.aspx页面代码:
SqlConnection strcon = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["strcon"]);
        strcon.Open();
        string CardId = this.CardId.Text.ToString();
        SqlCommand cmd = new SqlCommand("select count(*) from Users where userid="+Request.QuryString["CustomerID"], strcon);
        int count = Convert.ToInt32(cmd.ExecuteScalar());
        if (count > 0)
        {
           args.IsValid = false;
        }
        else
        {
            args.IsValid = true;
        }

}
但是为什么返回的结果是验证失败呢??哪个代码错了.请帮忙看一下谢谢!!

15 回复

#2

hex_maddog2008-01-08 18:21

javascript

我服了,居然用js来验证,干吗全不写到后台啊
看你的程序是验证的图片出错
var url="../Member/checkData.aspx?CustomerID=" + str
没有条件选择

#3

hex_maddog2008-01-08 18:23

if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
    {

        var flag1;
        var resStr = xmlHttp.responseText.substring(0,4);

        if(resStr == "true")
        {
            flag1 = resStr;
        }
        else
        {
            flag1 = xmlHttp.responseText.substring(0,5)
        }

        if (flag1 =="false")

#4

hex_maddog2008-01-08 18:27

应该这样改
        if (flag1 =="false")
        {
            document.getElementById("Customer").innerHTML= "<img src='../RegImg/pic_right.gif'>  " +"恭喜你，此用户名未被使用！";
            document.getElementById("userID").value= "YES";
        }
        else if(flag1 =="true")
        {
            document.getElementById("Customer").innerHTML="<img src='../RegImg/pic_error.gif'>  " +"验证失败!!";
            document.getElementById("Customer").className = "ss2"
            document.getElementById("userID").value= "NO";
            return false;        }
        else
        {
            document.getElementById("Customer").innerHTML="<img src='../RegImg/pic_error.gif'>  " +"对不起,此用户名已经存在！";
            document.getElementById("Customer").className = "ss2"
            document.getElementById("userID").value= "NO";
            return false;

        }

#5

hex_maddog2008-01-08 18:31

错了
你自己直接给flag1赋值

#6

hex_maddog2008-01-08 18:33

if(resStr == "true")
        {
            flag1 = resStr;
        }
resStr里面装的是字符串,转换成bool型就可以了,或者直接赋值,干吗要画蛇添足用什么resStr呢?

#7

hex_maddog2008-01-08 18:34

if(resStr == "true")
        {
            flag1 = ture;
        }
就可以了

#8

swalia2008-01-09 08:48

不行啊.改了验证就一直没反应了.. 用ASP的就可以通过..我现在也试不出来哪错了啊..帮我再看看谢谢!!!

#9

hex_maddog2008-01-09 09:33

重新定义flag1试试看，不要用字符串赋值，直接用布尔型来比较

#10

hex_maddog2008-01-09 09:40

这样肯定行
        if(resStr == "true")
        {
            flag1 = "true";
        }
        else
        {
            flag1 = "false"

#11

hex_maddog2008-01-09 09:42

如果还不行在这段代码前加一段，看看输出resStr是不是true
如果是的话还要看有没有空格

#12

1916381412008-01-09 15:25

Request.Qurying. 是什么东东..

#13

swalia2008-01-09 18:27

还是不行的啊..是不是这里要改一下
{
           args.IsValid = false;
        }
        else
        {
            args.IsValid = true;
        }
怎么样才能改成response.write("false")呢??

#14

hex_maddog2008-01-10 09:31

是的，就是
{
           args.IsValid = false;
        }
        else
        {
            args.IsValid = true;
        }
}

#15

hex_maddog2008-01-10 09:33

{
           args.IsValid = “false”;
        }
        else
        {
            args.IsValid = ”true“;
        }
}

#16

hex_maddog2008-01-10 09:35

改成这个输出什么咯？
{
           args.IsValid = “false”;
        }
        else
        {
            args.IsValid = ”true“;
        }
}

1