jQuery Ajax调用总是返回错误 [英] Jquery Ajax Call always returns error
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问题描述
我有一个如下的javascript代码
I have a javascript code as below
var xReg = '<region><width>' + $("#txtWidth").val() + '</width> <height>' + $("#txtHeight").val() + '</height><float>' + $("#floats").val() + '</float><contenttype>' + $("#contenttype").val() + '</contenttype><style>' + rgnStyle + '</style></region>';
$.ajax({
type: "POST",
url: "myurl/addRegion",
data: "{pubId: '" + Number($("#pubs").val()) + "',section: '" + $("#sections option:selected").text() + "',layoutW: '" + Number($("#txtLayoutW").val()) + "',layoutH: '" + Number($("#txtLayoutH").val()) + "',bSubReg: '" + Boolean($("#chkSubRegion").is(':checked')) + "',parentRegId: '" + Number(parentRgn) + "',sXmlRegion: '" + xReg.toString() + "'}",
contentType: "application/json; charset=utf-8",
async: false,
dataType: "json",
success: function (result) {
document.body.style.cursor = 'pointer';
if (result.d == -1) {
$("#errMsg").text("Failed to create new region");
}
else {
if ($("#chkSubRegion").is(':checked')) {
$("#regions").append("<option class='ddindent' value='" + result.d + "'>REGION-" + result.d.toString() + "</option>");
} else {
$("#subregions").append("<option class='ddindent' value='" + result.d + "'>SUBREGION-" + result.d.toString() + "</option>");
}
}
},
error: function (result) {
if (result.status == 200 && result.statusText == 'OK') {
if ($("#chkSubRegion").is(':checked')) {
$("#regions").append("<option class='ddindent' value='" + result.d + "'>REGION-" + result.d.toString() + "</option>");
} else {
$("#subregions").append("<option class='ddindent' value='" + result.d + "'>SUBREGION-" + result.d.toString() + "</option>");
}
}
else {
alert("FAILED : " + result.status + ' ' + result.statusText);
}
},
async: true
});
服务器代码如下
[WebMethod]
public int addRegion(int pubId, string section, int layoutW, int layoutH, bool bSubReg, int parentRegId, string sXmlRegion)
{
string path = Server.MapPath("~");
path = Path.Combine(path, "Published");
path = Path.Combine(path, pubId.ToString());
path = Path.Combine(path, section);
XmlDocument doc = new XmlDocument();
int rgnCount = 0;
try
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
path = Path.Combine(path, "layout.xml");
if (!File.Exists(path))
{
XmlNode docNode = doc.CreateXmlDeclaration("1.0", "UTF-8", null);
doc.AppendChild(docNode);
XmlNode templateNode = doc.CreateElement("layout");
doc.AppendChild(templateNode);
XmlNode xNodeW = doc.CreateElement("width");
xNodeW.AppendChild(doc.CreateTextNode(layoutW.ToString()));
XmlNode xNodeH = doc.CreateElement("height");
xNodeH.AppendChild(doc.CreateTextNode(layoutH.ToString()));
}
else
{
doc.Load(path);
doc.DocumentElement.SelectSingleNode("/layout/width").InnerText = layoutW.ToString();
doc.DocumentElement.SelectSingleNode("/layout/height").InnerText = layoutH.ToString();
}
XmlElement root = doc.DocumentElement;
XmlNode xParent = root;
if (bSubReg)
{
xParent = root.SelectSingleNode("/layout/region[id='" + parentRegId.ToString() + "']");
rgnCount = xParent.SelectNodes("/region").Count;
}
else
{
rgnCount = root.SelectNodes("/Layout/region").Count;
}
rgnCount++;
XmlDocumentFragment docFragment = doc.CreateDocumentFragment();
docFragment.InnerXml = sXmlRegion;
XmlNode xID = doc.CreateElement("id");
xID.AppendChild(doc.CreateTextNode(rgnCount.ToString()));
docFragment.FirstChild.AppendChild(xID);
xParent.AppendChild(docFragment);
doc.Save(path);
return rgnCount;
}
catch (Exception eX)
{
return -1;
}
}
该呼叫将从客户端转到服务器.在调试时,直到最后一个return语句,我都无法在服务器代码中找到任何问题.在javascript调试中,我发现ajax调用之后始终会返回错误回调函数.谁能建议代码有什么问题.
感谢&感谢您的时间.
Thanks & Appreciate Your Time.
推荐答案
我发现代码中的错误存在以下代码行
I found the bug in my code there is issue with below lines of code
},
async: true
错误结束时:回调函数
我删除了async行:true,它起作用了
I removed the line async: true and it worked
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