Ajax数据绑定..? [英] Ajax Data Binding ..?
本文介绍了Ajax数据绑定..?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
与SqlServer的Ajax数据绑定.我正在尝试从sqlserver检索数据，但是此代码中出现错误.
错误是...
Ajax data binding with SqlServer. I am trying to retrieve data from sqlserver but I''m getting an error in this code.
Error is ...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title></title></head><body> <form method="post" action="Data.aspx?q=manoj" id="form1"><div class="aspNetHidden"><input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTI2NTY4ODI3MWRkFbiJkgowu+T1QXVGsmTwAhctwfd1Q5UtHcRyxNwZQOA=" /></div><div class="aspNetHidden"> <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAgL874/EDAKM54rGBgJSPacj24MwGNzCI7lqM5q+15a8e8SgxfGCGx7QCBad" /></div> <div> </div> <span id="Label1">Label</span> <input type="submit" name="Button1" value="Button" id="Button1" /> </form></body></html>
This is value of textbox after ecode Exducation
Java脚本代码
java script code
<script type="text/javascript">
function showCustomer(str) {
if (str == "") {
document.getElementById("txtHint").innerHTML = "";
return;
}
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("Label1").value = xmlhttp.responseText;
}
}
xmlhttp.open("GET","Data.aspx.cs?q=" + str, true);
xmlhttp.send();
}
</script>
Data.aspx.cs包含sql的所有代码
ASP代码
Data.aspx.cs contains all code for sql
Asp code
<pr><div id="txtHint">Customer info will be listed here...</div>
<input type ="text" id="Label1" />
<select name="customers" onchange="showCustomer(this.value)">
<option value="">Select a customer:</option>
<option value="A">Alfreds Futterkiste</option>
<option value="B">North/South</option>
</select></pr>
Data.Aspx.cs代码....
Data.Aspx.cs Code ....
string eid = Request.QueryString["q"];
string con = " Data Source= mk-pc; initial catalog=data; integrated security = true";
string query = "Select *From Employee where ename= ''" + eid + "''";
SqlConnection cn = new SqlConnection(con);
SqlCommand cmd = new SqlCommand(query, cn);
cn.Open();
cmd.ExecuteNonQuery();
推荐答案
尽管您没有告诉您什么错误，但我在这里确实看到了一个问题:
Though you have not told what error, I do see an issue here:
xmlhttp.open("GET","Data.aspx.cs?q=" + str, true);
将此行更改为:
Change this line to:
xmlhttp.open("GET","Data.aspx?q=" + str, true);
您无需在页面名称中写入 .cs .它将自动与该文件对话.
You don''t need to write .cs in the page name. It would automatically talk to that file.
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