TextBoxFor decimal

问题

In my database I stored fields with the data type decimal. I am using exactly the same (decimal) data type in my ASP.NET application.

This is inside my view in order to display the value.

@Html.TextBoxFor(model => model.Stock, new { id = "Stock", @class = "k-textbox" })

This pretty straight forward. The only issue I am facing is that by default in my view the data is displayed with 4 decimal places.

I give you a few examples on how it looks and how it should look:

1. 1,0000 => 1
2. 1,2000 => 1,2
3. 1,4300 => 1,43
4. 1,8920 => 1,892
5. 1,5426 => 1,5426

As you can see I want to cut off all the 0 as decimal places (only when displayed in the view).

Remember: I am using commas instead of decimal points.

Edit:

My model

public class Article
{
    public decimal? Stock{ get; set; }
}

回答1:

You can use {0:G29} like this:

@{
    string temp = string.Format("{0:G29}", decimal.Parse(Model.Stock.ToString()));
    @Html.TextBoxFor(model => temp)
}

Or with string interpolation:

@{
    string temp = $"{decimal.Parse(Model.Stock.ToString()):G29}";
    @Html.TextBoxFor(model => temp)
}

EDIT: The reason that you can't get the value in your Controller after you save it is that the model binder can't find a property with name temp. You can use a TextBox instead of TextBoxFor to solve this issue like this:

string temp = $"{decimal.Parse(Model.Stock.ToString()):G29}";
@Html.TextBox("Stock" , temp)

Or if you still want to use TextBoxFor you can just rename the temp variable to Stock:

string Stock = string.Format("{0:G29}", decimal.Parse(Model.Stock.ToString()));
@Html.TextBoxFor(model => Stock)

回答2:

The G29 argument of the string.Format method does exactly what you want.

You can use the the following attribute on your models Stock value.

[DisplayFormat(DataFormatString = "{0:G29}", ApplyFormatInEditMode = true)]

Or you can use the overload which @Chris mentioned.

@Html.TextBoxFor(model => model.Stock, "{0:G29}", new { id = "Stock", @class = "k-textbox" })

回答3:

There is an overload of TextBoxFor that takes a format parameter that it uses to format the text.

This will allow you to format your number in any way you want.

来源：https://stackoverflow.com/questions/45059267/textboxfor-decimal