How to Retrieve an Enum's Description Attribute from its Integer Value in C#?

Get an enumeration description in C#according to the value

In C#, the lift can have a associated Description attribute, which provides descriptive text for each enumeration value. Based on the cone search description, you can use the following steps:

Create an enumeration with the description attribute:

<code class="language-csharp">public enum MyEnum
{
    Name1 = 1,
    [Description("另一个描述")]
    HereIsAnother = 2,
    [Description("最后一个描述")]
    LastOne = 3
}</code>

Define a function to retrieve the description:

<code class="language-csharp">public static string GetEnumDescription(Enum value)
{
    FieldInfo fi = value.GetType().GetField(value.ToString());

    DescriptionAttribute[] attributes = fi.GetCustomAttributes(typeof(DescriptionAttribute), false) as DescriptionAttribute[];

    if (attributes != null && attributes.Length > 0)
    {
        return attributes[0].Description;
    }

    return value.ToString();
}</code>

Using this function to obtain the description of enumeration value:

<code class="language-csharp">var myEnumDescriptions = from MyEnum n in Enum.GetValues(typeof(MyEnum))
                         select new { ID = (int)n, Name = GetEnumDescription(n) };</code>

Now, you need to retrieve the description of the value according to its integer value, you can:

<code class="language-csharp">int value = 1;
string description = GetEnumDescription((MyEnum)value);</code>

This will convert the integer value into an enumeration type and pass it to the GetenumDescript function, which will return the corresponding description.

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