在Controller

如何解决在Controller

public class MyLeave
{
    
    public int Leave_id { get; set; }

    public string EmpID { get; set; }

    [Display(Name = "From :")]
    //[DisplayFormat(DataFormatString = "{0:dd-MMM-yyyy}",ApplyFormatInEditMode = true)]
    [Required]
    public DateTime FromDate { get; set; }

    [Display(Name = "Till :")]
    //[DisplayFormat(DataFormatString = "{0:dd-MMM-yyyy}",ApplyFormatInEditMode = true)]
    [Required]
    public DateTime TillDate { get; set; }

    [Display(Name = "Total Number Of Days :")]
    [Required]
    public int TotalDays { get; set; }

    [Display(Name = "Reason :")]
    [Required]
    public string Reason { get; set; }

    public string Status { get; set; }

    public string Comment { get; set; }



   public List<MyLeave> LeaveData { get; set; }

}

公共类LeaveManagementController：控制器 { // GET：LeaveManagement

    public ActionResult ApplyLeave()
    {
        
        return View();
    }

    public ActionResult SubmitLeave(MyLeave obj)
    {
       
        string SessionEmployeeID = Session["EmployeeID"].ToString();
        string con = System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString;
        SqlConnection cnn = new SqlConnection(con);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = cnn;
        cmd.CommandType = System.Data.CommandType.StoredProcedure;
        cmd.CommandText = "sp_Leave";
        cmd.Parameters.AddWithValue("@EmpID",SessionEmployeeID); 
        cmd.Parameters.AddWithValue("@FromDate",obj.FromDate); null
        cmd.Parameters.AddWithValue("@TillDate",obj.TillDate); null
        cmd.Parameters.AddWithValue("@TotalDays",obj.TotalDays);
        cmd.Parameters.AddWithValue("@Reason",obj.Reason);

        cnn.Open();
        cmd.ExecuteNonQuery();
        cnn.Close();

        TempData["LeaveAppMessage"] = "Application Submitted To Admin Successfully!";

        return RedirectToAction("ApplyLeave");

    }
}

@model WebTimeSheetManagement.Models.MyLeave

@using（Html.BeginForm（“ MyLeave”，“ LeaveManagement”）） {

<div>
    @Html.LabelFor(model => model.FromDate,htmlAttributes: new { @class = "control-label" })
   @Html.EditorFor(model => model.FromDate,new { htmlAttributes = new { @class = "datepicker form-control",value = "myFromDate",id = "datepicker1",required = "required" } })
    @Html.ValidationMessageFor(model => model.FromDate)
</div>

<div>
    @Html.LabelFor(model => model.TillDate,htmlAttributes: new { @class = "control-label " })
    @Html.EditorFor(model => model.TillDate,value = "myTillDate",id = "datepicker2",required = "required" } })
    @Html.ValidationMessageFor(model => model.TillDate)
</div>

<br />

<div>

    @Html.LabelFor(model => model.TotalDays,htmlAttributes: new { @class = "control-label " })
    @Html.TextBoxFor(model => model.TotalDays,new { @class = "form-control",@maxlength = 40,id = "Calculate",required = "required" })
    @Html.ValidationMessageFor(model => model.TotalDays)
</div>


<br />
<div class="form-group ">
    @Html.LabelFor(model => model.Reason,htmlAttributes: new { @class = "control-label" })
    @Html.TextAreaFor(model => model.Reason,@onkeypress = "",required = "required",col = 4,row = 10})
    @Html.ValidationMessageFor(model => model.Reason)
</div>

<br />

<input type="submit" class="btn btn-success" id="btn_apply" value="Apply" onclick="location.href='@Url.Action("SubmitLeave","LeaveManagement","")'" />

}

日期选择器返回null 原因也返回null 请在2-3天后尽快解决 日期选择器返回日期，例如01/01/0001

解决方法

您必须使日期参数可为空。对于从DateTime到DateTime?

的更改