[Solved] Find and replace dynamic values via for loop

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I think this is what you want,

    List<string> keys = new List<string>() { "name", "age", "param3" };
    string url = "http://www.test.com/test.aspx?testinfo=&|&;";
    Regex reg = new Regex("&");
    int count = url.Count(p => p == '&');

    for (int i = 0; i < count; i++)
    {
        if (i >= keys.Count)
            break;
        url = reg.Replace(url, keys[i], 1);
    }

solved Find and replace dynamic values via for loop