c# - ASP MVC : Weird white spaces on the textbox whenever i try to edit a record

Question

出现的内容如下:

我使用了模板，并将模型传递到我的 View 中，我注意到它们得到了那些空白。我一直试图为我的性别默认一个 DropDownList 但不知何故，它们不起作用。我试图调试并认为可能是因为那些奇怪的空格。 (除部门外，其他都有)。

如何解决这个问题？

我还想补充一点，我使用 Entity Framework 。

型号

[Table("carl")]
public class Employee
{


    public int id { get; set; }

    [DisplayName("First Name")]
    [Required(ErrorMessage = "First name is required")]
    public string firstname { get; set; }


    [DisplayName("Last name")]
    [Required(ErrorMessage = "Last name is required")]
    public string lastname { get; set; }

    [Required(ErrorMessage = "Gender is required")]
    public string gender { get; set; }


    [DisplayName("Department")]
    [Range(1, 3)]
    [Required(ErrorMessage = "Dep name is required")]
    public int department { get; set; }

    public List<String> Players = new List<String> { "test", "test" };
}

Controller

 [HttpGet]
    public ActionResult Edit(int id)
    {

        EmployeeContext emp = new EmployeeContext();
        Employee sel = emp.Employees.Single(x => x.id == id);

        return View(sel);

    }

查看

@model MvcApplication6.Models.Employee

@{
ViewBag.Title = "Edit";
}

<h2>Edit</h2>

@using (Html.BeginForm()) {
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)

<fieldset>
    <legend>Employee</legend>

    @Html.HiddenFor(model => model.id)

    <div class="editor-label">
        @Html.LabelFor(model => model.firstname)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.firstname)
        @Html.ValidationMessageFor(model => model.firstname)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.lastname)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.lastname)
        @Html.ValidationMessageFor(model => model.lastname)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.gender)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.gender)
        @Html.ValidationMessageFor(model => model.gender)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.department)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.department)
        @Html.ValidationMessageFor(model => model.department)
    </div>

    <p>
        <input type="submit" value="Save" />
    </p>
</fieldset>
}

<div>
@Html.ActionLink("Back to List", "Index")
</div>

Answer 1

这是一个数据库问题。我敢打赌您设计的表的姓氏属性为 char 或 nchar。 Source .

如何解决？

• 您可以编辑表格的设计并将类型替换为 varchar 或 nvarchar 或
• 您可以在 C# 中使用 string.Trim() 函数来删除空格，但您必须在每个相关操作中执行此操作。