从ajax将数组传递给MVC控制器 [英] Pass an array to MVC Controller from ajax

问题描述

我正在尝试将JS数组传递给MVC控制器。通过使用相同的代码，我能够为API控制器做同样的事情。但是我无法使用MVC控制器做同样的事情。



任何人都可以请帮助



这个是JS方面

Hi,
I am trying to pass a JS array to a MVC Controller. By using the same code i was able to do the same for API Controller. But i am not able to do the same using MVC Controller.

Can anyone please help

This is the JS side

function GetColumnmappingValue() {
    var columnMappings = [];
    var count = 0;
    $('.row').each(function () {
        if (count > 0) {
            var sourceColumn = "";
            var destinationColumn = "";
            var sourceColumnIndex = "";

            $(this).find(".column").each(function () {

                var input = $(this).find("select").each(function (i) {
                    if (sourceColumn == "") {
                        sourceColumn = $(this).find("option:selected").text();
                        sourceColumnIndex = $(this).find("option:selected").val();
                    }
                    else {
                        destinationColumn = $(this).find("option:selected").text();
                    }
                });
            });

            //if (sourceColumn.toLowerCase() != "select" && destinationColumn.toLowerCase() != "select")
            columnMappings.push({ SourceColumnIndex: sourceColumnIndex, SourceColumn: sourceColumn, DestinationColumn: destinationColumn });
        }
        count++;
    });


    $.ajax({
        type: "POST",
        url: "/ExcelImport/SaveMappings",
        data: { '': columnMappings },
        dataType: "json",
        success: function () { alert("Mapping Successful") },
        failure: function () { alert("not working..."); }
    });

}

这是控制器

and this is the controller

[HttpPost]
        public IEnumerable<ColumnMapping> SaveMappings(IEnumerable<ColumnMapping> columnMappings)
        {
            // do some registration work
            CreateXML(columnMappings);
            return columnMappings;
        }

问题是我得到数组计数，但其中的所有值都为null ..



谢谢

Arjun Menon

The problem is that i am getting the array count , but all values inside it are null ..

Thanks
Arjun Menon

推荐答案

（' 。row'）。each（ function （）{
if （count> 0 ）{
var sourceColumn = ;
var destinationColumn = ;
var sourceColumnIndex = ;

('.row').each(function () { if (count > 0) { var sourceColumn = ""; var destinationColumn = ""; var sourceColumnIndex = "";

（ this ）。find（ 。column）。each（ function （）{

< span class =code-keyword> var input =

(this).find(".column").each(function () { var input =

（ this ）。find（ 选择）。each（ function （i） {
if （sourceColumn == ）{
sourceColumn =

(this).find("select").each(function (i) { if (sourceColumn == "") { sourceColumn =

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