TextBoxFor中限制为2位小数

时间:2011-05-25 06:27:00

标签: asp.net-mvc asp.net-mvc-3

下面的代码工作正常,但在文本框中,十进制值的格式为“0,0000” (,是小数点分隔符)。我想只有2位小数。我怎么能这样做?

谢谢,

//Database model used with NHibernate
public class Bank
{
    public virtual int Id { get; set; }
    public virtual string FirstName { get; set; }
    public virtual string LastName{ get; set; }
    public virtual decimal Amount { get; set; }
}

//MVC Model
public class MyModel
{
    public Bank Bank { get; set; }  
}

//View
@Html.TextBoxFor(m => m.Bank.Amount, new { id = "tbAmount"}) 

更新1

在调试器中,我没有看到任何小数,我们一步一步地在里面(o @HTML.Textbofor)查看,该值没有任何小数但是当页面显示时有4位小数< / p>

//Database model used with NHibernate
public class Bank
{
    public virtual int Id { get; set; }
    public virtual string FirstName { get; set; }
    public virtual string LastName{ get; set; }
    public virtual decimal Amount { get; set; }
}

//Class for view
public class ViewBank
{
    [DisplayFormat(DataFormatString = "{0:n2}", ApplyFormatInEditMode = true)]
    public decimal Amount { get; set; }
}

//MVC Model
public class MyModel
{
    public Bank Bank { get; set; }      
    var ViewBank = new ViewBank() { Amount = Bank.Amount};
}

//View
@Html.TextBoxFor(m => m.Amount, new { id = "tbAmount"}) 

5 个答案:

答案 0 :(得分:58)

我会使用编辑器模板,我会在我的视图中使用我的NHibernate域模型。我将定义视图模型,这些模型是根据给定视图的要求专门定制的(在这种情况下将数量限制为2位小数):

[DisplayFormat(DataFormatString = "{0:n2}", ApplyFormatInEditMode = true)]
public decimal Amount { get; set; }

然后:

@Html.EditorFor(m => m.Bank.Amount) 

答案 1 :(得分:37)

这对我有用

@Html.TextBox("Amount", String.Format("{0:0.00}", Model.Bank.Amount), new { id = "tbAmount"})

修改

这适用于TextBoxFor(不适用于MVC3)

@{var formated = String.Format("{0:0.00}", Model.Bank.Amount);}
@Html.TextBoxFor(m => m.Bank.Amount, formated, new { id = "tbAmount"})

答案 2 :(得分:15)

在MVC 4中,您现在可以将格式作为第二个参数传递

 final List<String> fruits_list = new ArrayList<String>(Arrays.asList(fruits));

    // Create an ArrayAdapter from List
    final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>
            (this, android.R.layout.simple_list_item_1, fruits_list){
        @Override
        public View getView(int position, View convertView, ViewGroup parent){
            // Get the current item from ListView
            View view = super.getView(position,convertView,parent);
            if(position %2 == 1)
            {
                // Set a background color for ListView regular row/item
                view.setBackgroundColor(Color.parseColor("#FFB6B546"));
            }
            else
            {
                // Set the background color for alternate row/item
                view.setBackgroundColor(Color.parseColor("#FFCCCB4C"));
            }
            return view;
        }
    };

    // DataBind ListView with items from ArrayAdapter
    lv.setAdapter(arrayAdapter);
}

答案 3 :(得分:1)

如果您没有Decimal类型的自定义编辑器模板,则EditorFor装饰的DisplayFormatAttribute可能会开箱即用。

对于自定义编辑器模板,我最终使用了以下内容:

@model decimal?

@{
    string displayValue;
    if (Model == null)
    {
        displayValue = null;
    }
    else {
        var formatString = (ViewData.ModelMetadata).DisplayFormatString;
        displayValue = formatString == null ? Model.ToString() : string.Format(formatString, Model);
    }

}

<div class="form-group">
    @Html.LabelFor(c => c)
    @Html.TextBoxFor(c => c, new { type = "text", Value = displayValue, @class = "form-control" })
    @Html.ValidationMessageFor(c => c)
</div>

当使用DisplayFormatAttribute装饰属性时,该方法适用:

[DisplayFormat(DataFormatString = "{0:n1}", ApplyFormatInEditMode = true), Display(Name = "Commission")]
public decimal? CommissionPercentage { get; set; }

答案 4 :(得分:0)

这对我有用。

在 MVC5 中,在视图中:

@Html.TextBoxFor(o => o.Amount, "{0:n0}", new { @class = "form-control" })

StringFormatting 前的输出 --> 15000.00

StringFormatting 后的输出 --> 15000