表单选择下拉值后填充两个字段

Question

我有一个应用程序，我想在选择数据库中预定义的财政季度后自动填充导入日期和导入日期字段。

和我的数据库

我不知道如何填充 ImportFromDate 和 ImportToDate。

这是我在视图中的代码

 @model PagedList.IPagedList<EMSFinal.Models.ClaimsArchived>

@using (Html.BeginForm("Index", "History", FormMethod.Get))
{
<div class="ui-controlgroup form-horizontal" style="position:relative;">
    <a href="/Claims/index" class="btn btn-info btn-sm"> << Current Month List</a> &nbsp;&nbsp;&nbsp;&nbsp;  
    Archived From Date: @Html.TextBox("fromdate", ViewBag.ArchivedFromDate as string, new { @class = "date-picker-month", id = "txtfromdate", placeholder = "Archived From Date..." })&nbsp;&nbsp;&nbsp;&nbsp; 
    Archived To Date: @Html.TextBox("todate", ViewBag.ArchivedToDate as string, new { @class = "date-picker-month", id = "txttodate", placeholder = "Archived To Date..." })&nbsp;&nbsp;&nbsp;&nbsp; 
    <input type="button" class="btn btn-success btn-sm" title="Update all current quarter displaying records to Paid." value="Paid All and Archived" onclick="location.href='@Url.Action("sp_UpdateQuarterRecordsToPaid","History")'" />
    <br />        
    @Html.DropDownList("ddlQuarterID", ViewBag.DropdownResult as List<SelectListItem>,"--Select A Fiscal Quarter--")
    Import From Date: @Html.TextBox("importfromdate", ViewBag.ImportFromDate as string, new { @class = "date-picker-month", id = "txtimportfromdate", placeholder = "Import From Date..." })&nbsp;&nbsp;&nbsp;&nbsp;
    Import To Date: @Html.TextBox("importtodate", ViewBag.ImportToDate as string, new { @class = "date-picker-month", id = "txtimporttodate", placeholder = "Import To Date..." })&nbsp;&nbsp;&nbsp;&nbsp; 
    Find : @Html.TextBox("searchString", ViewBag.CurrentFilter as string, new { @class = "form-search", id = "txtsearchString", placeholder = "Search..." })

    <input type="submit" class="btn btn-primary btn-sm" value="Search" />&nbsp;&nbsp;&nbsp;&nbsp;
    <input type="button" class="btn btn-success btn-sm" title="Export records to excel." value="Export Excel" onclick="location.href='@Url.Action("ExportFilteredHistorydDataToExcel", "History")'" />&nbsp;&nbsp;&nbsp;&nbsp;
    <input type="button" class="btn btn-success btn-sm" title="Reset" value="Reset" onclick="location.href='@Url.Action("resetsearch", "History")'" />
</div>
}

这是我在 ClaimsArchived.cs 中的代码

    //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated from a template.
 //
 //     Manual changes to this file may cause unexpected behavior in your application.
 //     Manual changes to this file will be overwritten if the code is regenerated.
 // </auto-generated>
 //------------------------------------------------------------------------------
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;
using System;
using System.Collections.Generic;
namespace EMSFinal.Models
{

public partial class ClaimsArchived
{

    public int Claim_ID { get; set; }
    public String Provider
    {
        get
        {
            if (Provider_Group == 73)
            {
                return "CEP";
            }
            else if (Provider_Group == 72)
            {
                return "CASE";
            }
            else
            {
                return "???";
            }
        }
    }

    [Display(Name = "Provider Num")]
    public Nullable<int> Provider_Group { get; set; }

    public string Facility { get; set; }
    public string Physician { get; set; }

    [Display(Name = "Last")]
    public string Patient_Last { get; set; }

    [Display(Name = "First")]
    public string Patient_First { get; set; }

    [Display(Name = "DOB")]
    [DataType(DataType.Date)]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
    public Nullable<System.DateTime> Patient_DOB { get; set; }

    public int Age
    {
        get
        {
            //DateTime date = DateTime.Today;
            DateTime date = Convert.ToDateTime(admit_date);
            DateTime birthday = Convert.ToDateTime(Patient_DOB);

            int tempage = date.Year - birthday.Year;
            //int tempage = DateTime.Compare(date, birthday);

            return tempage;
        }
    }

    public string Funding_Type
    {
        get
        {
            //DateTime date = DateTime.Today;

            DateTime birthday = Convert.ToDateTime(Patient_DOB);
            DateTime date = Convert.ToDateTime(admit_date);
            int compareAge = date.Year - birthday.Year;
            //int compareAge = DateTime.Compare(date, birthday);
            if (compareAge > 20)
            {
                return "MADDY";
            }
            else
            {
                return "RICHIE";
            }
        }
    }

    [Display(Name = "Gender")]
    public string Patient_Gender { get; set; }

    /// <summary>
    ///  temp remove that from the output and export -- SSNs are sensitive information so that's why disabled in this case 
    /// </summary>
    [Display(Name = "SSN")]
    [DisplayFormat(ApplyFormatInEditMode = false, DataFormatString = "{0:###-##-####}")]
    public Nullable<int> Patient_SSN { get; set; }

    [Display(Name = "Zip")]
    public string Patient_Zip { get; set; }
    public string Diagnosis { get; set; }

    [Display(Name = "Total Charges")]
    public Nullable<decimal> Total_Charges { get; set; }

    [Display(Name = "EMS Rate")]
    public Nullable<decimal> Total_EMS { get; set; }
    public bool Paid { get; set; }
    //public bool Paid { get; set; }

    [Display(Name = "Paid Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
    public Nullable<System.DateTime> Paid_date { get; set; }

    [Display(Name = "Unique ID")]
    public Nullable<int> Unique_ID { get; set; }

    [Display(Name = "Import Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
    public Nullable<System.DateTime> ImportDate { get; set; }

    [Display(Name = "Arh Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
    public Nullable<System.DateTime> ArchiveDate { get; set; }

    [Display(Name = "Archived")]
    public bool ArchiveYesNo { get; set; }

    [Display(Name = "Admit Date")]
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
    public Nullable<System.DateTime> admit_date { get; set; }
}
}

这是我在控制器中的代码

ViewBag.CurrentFilter = searchString;
ViewBag.ArchivedFromDate = fromdate;
ViewBag.ArchivedToDate = todate;

//var varquarterlist = db.QuarterName.OrderBy(b => b.QuarterId).Distinct().ToList();
//getting data for dropdown list
List<SelectListItem> objResult = new List<SelectListItem>();
var varquarterlist = db.QuarterName.Select(x => x.QuarterName1).Distinct().ToList();
//select qtlist;

foreach (var item in varquarterlist)
{
    SelectListItem temp = new SelectListItem();
    temp.Text = item;
    temp.Value = item;
    objResult.Add(temp);                
}
ViewBag.DropdownResult = objResult;

Answer 1

这是我的视图页面语法

     @Html.DropDownList("ddlQuarterName",(SelectList)ViewData     ["viewdataQuarterName"],"-Select A Fiscal Quarter-",new { onchange="Action(this.value);"})

    Import From Date: @Html.TextBox("importfromdate", ViewBag.ImportFromDate as string, new { @class = "date-picker-month", id = "txtimportfromdate", placeholder = "Import From Date..." })    
    Import To Date: @Html.TextBox("importtodate", ViewBag.ImportToDate as string, new { @class = "date-picker-month", id = "txtimporttodate", placeholder = "Import To Date..." })             
    Find : @Html.TextBox("searchString", ViewBag.CurrentFilter as string, new { @class = "form-search", id = "txtsearchString", placeholder = "Search..." })

<script type="text/javascript">
function ToJavaScriptDate(value) {
    var pattern = /Date\(([^)]+)\)/;
    var results = pattern.exec(value);
    var dt = new Date(parseFloat(results[1]));
    return (dt.getMonth() + 1) + "/" + dt.getDate() + "/" + dt.getFullYear();


function Action(QuarterID) {
    $.ajax({
        url: '@Url.Action("Action","History")',
        type: "POST",
        data: { "QuarterID": QuarterID },
        "success": function (data) {
            if (data != null) {
                var vdata = data;
                $("#txtimportfromdate").val(ToJavaScriptDate(vdata[0].QuarterStartDate));
                $("#txtimporttodate").val(ToJavaScriptDate(vdata[0].QuarterEndDate));
            }
        }
    })
}

HistoryController 代码（历史）

ViewData["viewdataQuarterName"] = new SelectList(db.QuarterName, "QuarterID", "QuarterName1"); 


        [HttpPost]
    public ActionResult Action(string QuarterID)
    {
        var query = from c in db.QuarterName
                    where c.QuarterId.ToString() == QuarterID
                    select c;
        return Json(query);
    }