how to calculate sum (Total) of DataTable Columns using C#
<pre><code>DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[3] { new DataColumn("EmployeeId", typeof(int)),
        new DataColumn("Name", typeof(string)),
        new DataColumn("Salary", typeof(int)) });
dt.Rows.Add(1, "John Hammond", 45000);
dt.Rows.Add(2, "Mudassar Khan", 32000);
dt.Rows.Add(3, "Robert Schidner", 19000);
dt.Rows.Add(3, "Suzanne Mathews", 18500);
</code></pre>

<p>This is my table 
and i want to add salary.</p>