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POCompiling class in DLL and referencing it in another project in C#
 

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  1. POCompiling class in DLL and referencing it in another project in C#
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    <p>Hope I'm asking this correctly.</p> <p>I have this class:</p> <pre><code>class ListUtilities { private List&lt;string&gt; _datalist; public ListUtilities(List&lt;string&gt; datalist) { _datalist = datalist; } //Method to calculate age from a date private int getAge(string bdaystr) { DateTime today = DateTime.Today; DateTime bday = new DateTime(Convert.ToInt32(bdaystr.Substring(0, 4)), Convert.ToInt32(bdaystr.Substring(4, 2)), Convert.ToInt32(bdaystr.Substring(6, 2))); int age = today.Year - bday.Year; if (bday &gt; today.AddYears(-age)) age--; return age; } //Method to print the data List public void printDataList() { for (int i = 0; i &lt; _datalist.Count; i++) { Console.WriteLine(_datalist.ElementAt(i)); } } //Method to calculate and print the ages public void printAges() { List&lt;int&gt; ages = new List&lt;int&gt;(); for (int i = 0; i &lt; _datalist.Count; i++) { string s = _datalist.ElementAt(i); string[] data = s.Split(','); ages.Add(getAge(data[3])); } Console.WriteLine("Ages:"); for (int i = 0; i &lt; ages.Count; i++) { Console.WriteLine(ages.ElementAt(i)); } } //Method to search by surname public string searchBySurname(string surname) { string res = ""; res = _datalist.Find(delegate(String str) { string[] data = str.Split(','); string sname = data[1]; if (sname == surname) return true; else return false; }); return res; } //Method to search by phone number public string searchByPhoneNumber(string phone) { string res = ""; res = _datalist.Find(delegate(String str) { string[] data = str.Split(','); string phn = data[4]; if (phn == phone) return true; else return false; }); return res; } //Method to search by age public string searchByAge(int age) { string res = ""; res = _datalist.Find(delegate(String str) { string[] data = str.Split(','); int age2 = Convert.ToInt32(getAge(data[3])); if (age2 == age) return true; else return false; }); return res; } //Method to sort by surname public int sortBySurname(string x, string y) { string[] data_x = x.Split(','); string sname_x = data_x[1]; string[] data_y = y.Split(','); string sname_y = data_y[1]; return String.Compare(sname_x, sname_y); } //Method to sort by phone number public int sortByPhoneNumber(string x, string y) { string[] data_x = x.Split(','); int phn_x = Convert.ToInt32(data_x[4]); string[] data_y = y.Split(','); int phn_y = Convert.ToInt32(data_y[4]); return phn_x.CompareTo(phn_y); } //Method to sort by age public int sortByAge(string x, string y) { string[] data_x = x.Split(','); int age_x = Convert.ToInt32(data_x[3]); string[] data_y = y.Split(','); int age_y = Convert.ToInt32(data_y[3]); return age_y.CompareTo(age_x); } } </code></pre> <p>and I want to compile it in a .DLL file. I have tried doing it by the console like this:</p> <pre><code>csc /target:library /out:MathLibrary.DLL Add.cs Mult.cs </code></pre> <p>and putting that class in a Class Library project and building it, and I get the DLL file in both cases but the problem comes when I want to use that DLL.</p> <p>I create a new Project, and I do reference the DLL file, but when I want to use it, this is the problem:</p> <p><img src="https://i.stack.imgur.com/BmfX4.png" alt="VS message"></p> <p>And, seems that there is nothing inside the DLL:</p> <p><img src="https://i.stack.imgur.com/dhtqE.png" alt="enter image description here"></p> <p>Best regards</p>
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    1. USandoni90
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      1. VTUpMod
    1. COWhy are you compiling via command-line if you have Visual Studio?
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      1. USD Stanley
    2. COWhy don't you use msbuild. msbuild.exe sample.csproj /p:Configuration=Release;PackageAsSingleFile=False;outdir=destPath;
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