如何设置文本框的边框颜色红验证失败时 [英] How to set the textbox border color red when validation fails

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本文介绍了如何设置文本框的边框颜色红验证失败时的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

在验证失败中我有一个任务来设置红色边框的文本框.NET MVC 4。

BExtensionMethods.cs

 公共静态字符串GetTextBoxColor(此ModelStateDictionary的ModelState)
    {
        字符串textBoxColor =的String.Empty;
        诠释计数= 1;
        VAR errorKeys =(从项目中的ModelState
                         其中,item.Value.Errors.Any()
                         选择item.Key).ToList();
        的foreach(在errorKeys VAR项)
        {
            textBoxColor + =的String.Format({0} {1}< / BR>中,伯爵,项目);
            算上++;
        }
        返回textBoxColor;
    }

下面的JSON对象包含values​​.How我可以过滤呢?


解决方案

 公共静态列表<串GT; GetTextBoxColor(这ModelStateDictionary的ModelState)
    {
        字符串textBoxColor =的String.Empty;
        诠释计数= 1;
        清单<串GT;名单=新名单,LT;串>();
        VAR errorKeys =(从项目中的ModelState
                         其中,item.Value.Errors.Any()
                         选择item.Key.Substring(item.Key.LastIndexOf()'。')修剪)了ToList()。('。')。
        的foreach(在errorKeys VAR项)
        {
            textBoxColor + =的String.Format({0} {1}< / BR>中,伯爵,项目);
            list.Add(项目);
            算上++;
        }
        返回列表;    }

I have got a task to set red color border for text box when the validation fails in .net mvc 4.

BExtensionMethods.cs

    public static string GetTextBoxColor(this ModelStateDictionary ModelState)
    {
        string textBoxColor = string.Empty;
        int count = 1;
        var errorKeys = (from item in ModelState
                         where item.Value.Errors.Any()
                         select item.Key).ToList();
        foreach (var item in errorKeys)
        {
            textBoxColor += string.Format("{0}.{1}</br>", count, item);
            count++;
        }
        return textBoxColor;
    }

Here the json object contains the values.How can I filter it?

解决方案

public static List<string> GetTextBoxColor(this ModelStateDictionary ModelState)
    {
        string textBoxColor = string.Empty;
        int count = 1;
        List<string> list = new List<string>();
        var errorKeys = (from item in ModelState
                         where item.Value.Errors.Any()
                         select item.Key.Substring(item.Key.LastIndexOf('.')).Trim('.')).ToList();
        foreach (var item in errorKeys)
        {
            textBoxColor += string.Format("{0}.{1}</br>", count, item);
            list.Add(item);
            count++;
        }
        return list;

    }

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