如何使用c#和SQL中的LIKE逻辑过滤字符串？

我在C#aka product_name中有一个字符串变量，我想像这样过滤，让它返回true或false：

product_name LIKE '%BONUS NAME%' 

请问我怎么做

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PS：我必须在C#而不是SQL上执行此操作。简单选项：使用String.Contains

MSDN页面中的示例

// This example demonstrates the String.Contains() method
using System;

class Sample 
{
    public static void Main() 
    {
    string s1 = "The quick brown fox jumps over the lazy dog";
    string s2 = "fox";
    bool b;
    b = s1.Contains(s2);
    Console.WriteLine("Is the string, s2, in the string, s1?: {0}", b);
    }
}
/*
This example produces the following results:

Is the string, s2, in the string, s1?: True
*/

更健壮：使用正则表达式库

正则表达式给了您更多的功能，但您可以使用正则表达式运算符“.”和“*”模拟SQL的通配符

string text = "The quick brown fox jumps over the lazy dog";
string pat = @"fox";

// Instantiate the regular expression object.
Regex r = new Regex(pat, RegexOptions.IgnoreCase);

// Match the regular expression pattern against a text string.
Match m = r.Match(text);

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我喜欢使用

IndexOf

方法匹配字符串的一部分：

string input = "This is My FuLl string";
string lookFor = "full";
bool foundIt = input.IndexOf(lookFor, StringComparison.OrdinalIgnoreCase) >= 0;

与

Contains

不同，这将打开不区分大小写的匹配

string input = "This is My FuLl string";
string lookFor = "full";
bool foundIt = input.IndexOf(lookFor, StringComparison.OrdinalIgnoreCase) >= 0;