无法检查控制器中的单选按钮选定值

本文关键字：单选按钮 检查 控制器 | 更新日期: 2023-09-27 18:31:00

我有 4 个单选按钮，我正在从下面这样的模型中绑定这些按钮

@model MVC.Models.DeleteModel
@using (@Html.BeginForm("Submit", "Delete"))
{
   <div class=".editor-field">
       @Html.Label("Delete");
   </div>
   <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.IsDeleteByItemChecked,"By Item")
       @Html.Label("By Item")
  </div>
    <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.IsDeleteByVendorChecked,"By Vendor")
         @Html.Label("By Vendor")
        @Html.RadioButtonFor(m=>m.IsCancelPageChecked,"Cancel Page")
         @Html.Label("Cancel Page")
  </div>
  <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.IsDeleteByMemberChecked,"By Member")
       @Html.Label("By Member")
  </div>
    <div class=".editor-field">
           <input id="btnSubmitChanges" type="submit" value="Submit" />
        </div>    
}

这是我的模型 

 public class DeleteModel
{
    public bool IsDeleteByItemChecked { get; set; }
    public bool IsDeleteByVendorChecked { get; set; }
    public bool IsDeleteByMemberChecked { get; set; }
    public bool IsCancelPageChecked { get; set; }
    [Display(Name = "By Item")]
    public string ByItem { get; set; }
    [Display(Name = "By Vendor")]
    public string ByVendor { get; set; }
    [Display(Name = "By Member")]
    public string ByMember { get; set; }
    [Display(Name = "Cancel Page")]
    public string CancelPage { get; set; }
}

这是我的控制器

    [HttpPost]
    public ActionResult Submit(DeleteModel deleteModel)
    {
        //some coding stuff
         //here i am checking the radio button for selected one 
        if (deleteModel.IsDeleteByItemChecked)
        {
            DeleteItem deleteByItemInsert = new DeleteItem();
            deleteByItemInsert.DeleteField = "ITEM";
            deleteByItemInsert.DeleteIndicator = char.MinValue;
            deleteByItemInsert.DeleteValue = itemDTO.ItemID;
        }
        if (deleteModel.IsDeleteByMemberChecked)
        {
            DeleteItem deleteByMemberInsert = new DeleteItem();
            deleteByMemberInsert.DeleteField = "MEMBER";
            deleteByMemberInsert.DeleteIndicator = char.MinValue;
            deleteByMemberInsert.DeleteValue = "";
        }

问题是如果我选择first radio button然后单击submit button如果控制器内部的条件first if condition它首先出现错误....

如何检查侧控制器中是否选择了单选按钮

请问有人对此有解决方案吗...

另一个问题是，如果我选择第一个单选按钮，然后选择第二个单选按钮，我

无法取消选择第一个单选按钮，我该如何纠正这个....

无法检查控制器中的单选按钮选定值

这两个问题是相关的。 通过稍微修改模型，您将能够对单选按钮进行分组，以便单击取消选择其他按钮以及检查所选值。

首先，将模型修改为：

public class DeleteModel
{
    public string DeleteBy { get; set; }
    [Display(Name = "By Item")]
    public string ByItem { get; set; }
    [Display(Name = "By Vendor")]
    public string ByVendor { get; set; }
    [Display(Name = "By Member")]
    public string ByMember { get; set; }
    [Display(Name = "Cancel Page")]
    public string CancelPage { get; set; }
}

Html.RadioButtonFor（） 的第一个参数应该是您正在使用的属性名称，第二个参数应该是该特定单选按钮的值。然后，它们将具有相同的名称属性值，并且帮助程序将在/如果它与属性值匹配时选择给定的单选按钮。

继续对 DeleteModel 类进行修改，这将使视图变为：

  <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.DeleteBy,"item")
       @Html.Label("By Item")
  </div>
    <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.DeleteBy,"vendor")
         @Html.Label("By Vendor")
   @Html.RadioButtonFor(m=>m.DeleteBy,"page")
         @Html.Label("Cancel Page")
  </div>
  <div class =".editor-field">
   @Html.RadioButtonFor(m=>m.DeleteBy,"member")
       @Html.Label("By Member")
  </div>

然后在控制器中检查，如下所示：

if (deleteModel.DeleteBy == "item")
{
    DeleteItem deleteByItemInsert = new DeleteItem();
    deleteByItemInsert.DeleteField = "ITEM";
    deleteByItemInsert.DeleteIndicator = char.MinValue;
    deleteByItemInsert.DeleteValue = itemDTO.ItemID;
}
if (deleteModel.DeleteBy == "member")
{
    DeleteItem deleteByMemberInsert = new DeleteItem();
    deleteByMemberInsert.DeleteField = "MEMBER";
    deleteByMemberInsert.DeleteIndicator = char.MinValue;
    deleteByMemberInsert.DeleteValue = "";
}
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