大家好，这里是我的函数代码，用于检查我的数据库中是否存在某个id
function checkifuploaded(citenr) {
$.ajax({
type: "POST",
url: "locationsDB.asmx/checkifexist",
data: '{"citenr": "' + citenr + '"}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
if (response.d) {
return true;
} else {
return false;
}
//setinfo();
},
failure: function (response) {
alert(response.d);
}
});
}
现在我有另一个使用上述功能的功能
function plotnew(lat, lng) {
$('#latt').val(lat);
$('#longt').val(lng);
$("#Panel2").dialog({
resizable: false,
height: 350,
width: 600,
modal: true,
buttons: {
"Plot Incident and Save to Database": function () {
//$(this).dialog("close");
if (checkifuploaded($('#idcr').val())) {
$.post(
'insertcrimelocation.aspx',
{ lat: $('#latt').val(), long: $('#longt').val(), cirsid: $('#idcr').val() },
function (responseText, textStatus) {
//checkifexist
plot();
$("#Panel2").dialog("close");
$.ambiance({ message: "successfully plotted the incident!",
title: "Success!",
type: "success"
});
})
.error(function () {
$.ambiance({ message: "error on request",
title: "Error!",
type: "error"
});
});
} else {
$.ambiance({ message: "The C.I.R.S id is not yet uploaded",
title: "Error!",
type: "error"
});
}
},
Cancel: function () {
$(this).dialog("close");
}
}
});
}
我的下面的webservice代码按预期返回它返回true
<WebMethod()> _
Public Function checkifexist(citenr As String) As Boolean
Dim locs As New crimemsapslocationDataContext
Dim check = locs.OFFENSEs.Where(Function(offense) offense.CITE_NR = citenr).First
If Not check Is Nothing Then
Return True
Else
Return False
End If
End Function
令我惊讶的是，在第二个函数即plotnew（）如果返回值为true，它执行相反的方式而不是通过另一个页面调用函数我的代码是否有问题？
我现在可以使用以下代码
了function checkifuploaded(citenr) {
$.ajax({
type: "POST",
url: "locationsDB.asmx/checkifexist",
data: '{"citenr": "' + citenr + '"}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
if (response.d) {
i squeezed my function here to make it work
thanks for all the help and info
} else {
return false;
}
//setinfo();
},
failure: function (response) {
alert(response.d);
}
});
}