Question

我有一个下拉列表，我已经填充了数据库中的项目。下拉列表显示项目名称，但选中的值是项目的ID而不是名称。

我想在另一个表上插入一条新记录，但我收到以下错误，我试图研究这个问题：

编译器错误消息：CS0103：当前上下文中不存在名称“customerID”

@{
Layout = "~/_Layout.cshtml";
Page.Title = "Add Server";

var db = Database.Open("BackupMonitoringAppV2") ;
var listcustomers = "SELECT CustomerName, CustomerID from Customers";

List<SelectListItem> customerdropdowndata = new List<SelectListItem>();
bool isSelected = false;
foreach(var item in db.Query(listcustomers)){   
    customerdropdowndata.Add(new SelectListItem
    {

        Text = item.CustomerName,
        Value = item.CustomerID.ToString(), 
        Selected = isSelected
    });
}

            ///Need to resolve the issue with request form adding to database.

 var servername = "";


 if(IsPost){
    customerID = Request.Form["Customers"];
    servername = Request.Form["ServerName"];

    var db2 = Database.Open("BackupMonitoringAppV2");
    var insertCommand = "INSERT INTO Servers (CustomersID, Servername,) Values(@0, @1)";
    db.Execute(insertCommand, customerID, servername);
    Response.Redirect("~/Dashboard/Servers");

}

HTML

<form role="form" method="post">
  <div class="form-group">
    
      @Html.DropDownList("Customers", customerdropdowndata)
  </div>
  
    <div class="form-group">
    <label for="CustomerName">Server Name</label>
      
    <input type="text" class="form-control" name="customername" value="@Request.Form["ServerName"]" />
  </div>
  
  <button type="submit" class="btn btn-info" name="buttonSubmit">Add Server</button>
</form>

如何在Razor C中获取SelectedValue @ Html.DropDownList并插入数据库＃

HTML

0 个答案: