[英]Undefined is added in a row when dynamically adding row in table using JQuery
當我使用jquery在表中動態添加行而不是動態插入數據時,在表row中添加了undefined。
在這里輸入圖像描述這是一種形式,當我添加數據時,而不是數據中添加未定義內容。
var employee = {
ID: 0,
Name: "",
LastName: ""
};
function addEmployee(employee)
{
debugger;
alert(employee.ID);
$.ajax({
url: "http://localhost:51640/employee/createemployee",
type: 'POST',
contentType:
"application/json;charset=utf-8",
data: JSON.stringify(employee),
success: function (employee) {
employeeAddSuccess(employee);
},
});
}
function employeeAddSuccess(employee) {
alert(employee.Name);
employeeAddRow(employee);
alert("about to clear ");
formClear();
alert("successfully addded");
}
function employeeAddRow(employee) {
alert(employee.ID);
$("#employeeTable tbody").append(employeeBuildTableRow(employee));
}
function formClear() {
$("#lblempID").val("");
$("#lblEmpName").val("");
$("#lblEmpLastName").val("");
}
function addClick() {
formClear();
}
function employeeBuildTableRow(employee) {
debugger;
var ret =
"<tr>" +
"<td>" + employee.ID + "</td>" +
"<td>" + employee.Name + "</td>"
+ "<td>" + employee.LastName + "</td>" +
"</tr>";
alert(ret);
return ret;
}
function updateClick() {
// Build product object from inputs
employee = new Object();
employee.ID = $('#lblempID').val();
employee.Name = $('#lblEmpName').val();
employee.LastName = $('#lblEmpLastName').val();
addEmployee(employee);
}
您不應該對要發送的數據進行字符串化處理,請嘗試:
function addEmployee(employee)
{
debugger;
console.log(employee); // verify the data that will be sent to the server
$.ajax({
url: "http://localhost:51640/employee/createemployee",
type: 'POST',
dataType:'json'
contentType:
"application/json;charset=utf-8",
data: employee,
success: function (result) {
console.log(result); // verify the result coming back
employeeAddSuccess(result);
},
fail: function (error) {
console.log(error); // if there's an error, log that too
}
});
}
您還應該記錄服務器接收數據時在服務器上發生的情況,這可能是發生“未定義”的地方。
我假設您還需要錯誤處理服務器端才能在ajax調用的fail
回調中獲得有意義的結果。 上面的代碼應幫助您標記問題出處。
最后,為了喜歡所有代碼,請不要使用警報進行調試! console.log也可以正常工作,並且不會阻止您的應用程序/避免涉及的所有人煩惱:)
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