Get SQL Server column data type using C #

Question

I'm not sure what exactly I am doing wrong, can someone fix this, please? I need to determine the type of the extracted column from a SQL Server database using C #.

Say I have this:

SqlConnection cn = new SqlConnection("Sql Connection String");
SqlCommand cmd = new SqlCommand("SELECT * FROM [TableName]", cn);
SqlDataReader rdr = cmd.ExecuteReader();

while (rdr.Read())
{
    for (int c = 0; c < rdr.VisibleFieldCount; c++)
    {
        System.Type type = rdr.GetFieldType(c);

        //So can I do this? (Pseudo-code)
        //switch(type)
        //{
        //case string:
        //case int:
        //case DateTime:
        //etc.
        //}
    }
}

Answer 1

You can do the following:

/* ... code .... */

System.Type type = rdr.GetFieldType(c);

switch (Type.GetTypeCode(type))
{
    case TypeCode.DateTime:
        break;
    case TypeCode.String:
        break;
    default: break;
}

/* ... code .... */