Question

我有两个表，我使用while循环从其中一个表中获取了数据。我试图将其插入第二张表，但无济于事。下面是我的代码。$client = new nusoap_client( /*endpoint*/ $url, /*wsdl*/ $type, /*proxyhost*/ false, /*proxyport*/ false, /*proxyusername*/ false, /*proxypassword*/ false, /*timeout*/ $timeout, //here you can define timeout /*response_timeout*/ $responseTimeout, //here is what you want to define /*portName*/ '');

enter code here

Answer 1

https://dotnetfiddle.net/hWKzMo ，您的视图：

@{
    Layout = null;
}
<!DOCTYPE html>
@*credit to https://stackoverflow.com/questions/51525958/dropdownlist-with-java-script*@
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Tut118</title>
    <script src="~/Scripts/jquery-1.12.4.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $("#btnGetNew").click(function () {
                var theData = $('#thePassedData').val();
                var passMe = { passedData: theData };
                $.ajax({
                    type: "POST",
                    url: "/Home/GetDataButDontOverrwite",
                    data: passMe,
                    dataType: 'json',
                    success: function (data) {
                        $.each(data, function (i, anObj) {
                            $("#TheDropDown").append($('<option>').text(anObj.Text).attr('value', anObj.Value));
                        });
                    }
                });
            })
        })
    </script>
</head>
<body>
    <div>
        <input type="hidden" id="thePassedData" value="2" />
        <input type="button" id="btnGetNew" value="GetNew" />
        <p />
        This dropdown initally contains values and when you 'GetNew', it adds more values
        <p />
        @Html.DropDownList("TheDropDown", ViewBag.Drop as List<SelectListItem>)
        <p />
        The above dropdown, text, and button are part of the old page, and when you click on 'GetNew',
        new values will be added to the page, but the new values will NOT overrite the old value
    </div>
</body>
</html>

您的控制器/视图模型：

public class passMe
{
    public string passedData { get; set; }
}

public class HomeController : Controller
{
    [HttpPost]
    public string GetDataButDontOverrwite(passMe passMe)
    {
        var drop2 = new List<SelectListItem>();
        SelectListItem sli1 = new SelectListItem { Text = "MoreOptions1", Value = "MoreOptions1" };
        SelectListItem sli2 = new SelectListItem { Text = "MoreOptions2", Value = "MoreOptions2" };
        drop2.Add(sli1);
        drop2.Add(sli2);
        //You need Newtonsoft.JSON
        return JsonConvert.SerializeObject(drop2);
    }

    public ActionResult Tut118()
    {
        List<SelectListItem> drop = new List<SelectListItem>();
        SelectListItem sli1 = new SelectListItem { Selected = true, Text = "Option1", Value = "Option1" };
        SelectListItem sli2 = new SelectListItem { Text = "Option2", Value = "Option2" };
        drop.Add(sli1);
        drop.Add(sli2);
        ViewBag.Drop = drop;
        return View();
    }

使用while循环从数据库中获取数据并插入到php和mysql中的另一个表中

1 个答案: