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javascript - Jquery ajax 函数停止工作

转载 作者:行者123 更新时间:2023-11-30 08:12:01 25 4
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我一直在一个页面中处理一些 jquery。现在突然之间,发布功能似乎停止工作了?

 function deleteRow(OrderNo, LineNo) {
alert(OrderNo + ";" + LineNo);
$.ajax({
type: "POST",
url: "Ajax.aspx/DeleteRow",
data: '{' + 'OrderNo:"' + OrderNo + '",' + 'LineNo:"' + LineNo + '"' +
'}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
//$("#item").val(msg);
var data = jQuery.parseJSON(msg);
if (!data.error) {
$('#' + LineNo).remove();
}
else {
alert("Error" + " " + data.error);
}
},
error: function (msg) {
alert('Failure: ' + msg);
}
});
}

这是一个返回错误“Failure [object Object]”的 jquery 函数

函数 DeleteRow 确实存在于 Ajax.aspx 中并且确实有效。无法理解为什么帖子功能突然停止工作??

[WebMethod]
public static string DeleteRow(string OrderNo, string LineNo)
{
SqlConnection myConnection = new SqlConnection(connStr);
myConnection.Open();
//Check if param exisits
string SQLst = "Delete from Saved_Order_Import where [Order No] = '"+OrderNo+"' And [Line No] = '"+LineNo+"'";
try
{
SqlCommand myComman = new SqlCommand(SQLst, myConnection);
myComman.ExecuteNonQuery();
}
catch (Exception ex)
{
myConnection.Close();
return "{\"error\":\"Error Line Not Deleted" + ex.ToString() + "\"}";
}
myConnection.Close();
return "{\"Success\":\"Line Deleted\"}";
}

控制台日志

abort: function ( statusText ) {
always: function () {
complete: function () {
done: function () {
error: function () {
fail: function () {
getAllResponseHeaders: function () {
getResponseHeader: function ( key ) {
isRejected: function () {
isResolved: function () {
overrideMimeType: function ( type ) {
pipe: function ( fnDone, fnFail ) {
promise: function ( obj ) {
readyState: 4
responseText:
<!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 id="Head1"><title>

</title></head>
<body>
<form name="form1" method="post" action="Ajax.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwULLTE2MTY2ODcyMjlkZAZAz479BJ9BS5KpwM0PauBgztmI" />
</div>

<div>
</div>
</form>
</body>
</html>
"
setRequestHeader: function ( name, value ) {
status: 200
statusCode: function ( map ) {
statusText: "parsererror"
success: function () {
then: function ( doneCallbacks, failCallbacks ) {
__proto__: Object

最佳答案

你的问题出在这一行:

'{' + 'OrderNo:"' + OrderNo + '",' + 'LineNo:"' + LineNo + '"' +
'}',

应该是这样的:

'{' + '"OrderNo":"' + OrderNo + '",' + '"LineNo":"' + LineNo + '"' +
'}',

请注意 OrderNo:"LineNo:" 之前缺少开头的 "。此修复将生成有效的 JSON 字符串:

'{"OrderNo": "OrderNo Value", "LineNo": "LineNo Value"}'

对于有效的 JSON 来说,这些双引号是必需的,这一点令人惊讶地不常见。

关于javascript - Jquery ajax 函数停止工作,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8881133/

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