表單在選擇下拉值後填充兩個字段

Question

我有一個應用程序，在選擇數據庫中預定義的財政季度之後，我想自動填充「從日期導入」和「導入到日期」字段。

和我的數據庫

我被困如何填充ImportFromDate和ImportToDate。

這是我的視圖中的代碼

@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> 
} 

這是我在ClaimsArchived.cs代碼

//------------------------------------------------------------------------------ 
// <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; } 
} 
} 

這是我在控制器代碼

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

這裏被我的瀏覽頁面語法

 @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代碼（歷史）

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); 
    }