Using A Static Class As Sql Layer ?

Can I use this class in ASP.NET web site with many visitors?
SqlLayer.cs:
 public static class SqlLayer{
public static string ConnectionString = ConfigurationManager.ConnectionStrings["SomeConnectionString"].ConnectionString;
public static int ExecuteNonQuery(string StoredProcedureName, string[] ParamNames, object[] ParamValues) {
if (ParamNames.Length != ParamValues.Length) {
throw new Exception("ParamNames.Length != ParamValues.Length");
}
using (SqlConnection cSqlConnection = new SqlConnection(ConnectionString) {
cSqlConnection.Open();
SqlCommand cSqlCommand = cSqlConnection.CreateCommand();
cSqlCommand.CommandType = CommandType.StoredProcedure;
cSqlCommand.CommandText = StoredProcedureName;

cSqlCommand.Parameters.Add("@ReturnValue", DbType.Int32);
cSqlCommand.Parameters["@ReturnValue"].Direction = ParameterDirection.ReturnValue;

for (int i = 0; i < ParamValues.Length; i++) {
cSqlCommand.Parameters.AddWithValue(ParamNames[i], ParamValues[i]);
}

cSqlCommand.ExecuteNonQuery();
return (int) cSqlCommand.Parameters["@ReturnValue"].Value;

}
}

public delegate void ActionForReader(SqlDataReader Reader);
public static void ExecuteReader(string StoredProcedureName, string[] ParamNames, object[] ParamValues, ActionForReader cActionForReader) {
using (SqlConnection SqlConnection1 = new SqlConnection(ConnectionString)) {
SqlConnection1.Open();
SqlCommand SqlCommand1 = SqlConnection1.CreateCommand();
SqlCommand1.CommandType = CommandType.StoredProcedure;
SqlCommand1.CommandText = StoredProcedureName;

for (int i = 0; i < ParamValues.Length; i++) {
SqlCommand1.Parameters.AddWithValue(ParamNames[i], (ParamValues[i] == null ? DBNull.Value : ParamValues[i]));
}
using (SqlDataReader Reader = SqlCommand1.ExecuteReader()) {
if (cActionForReader != null) {
//if (Reader.HasRows == false) throw new Exception("Reader has no rows");
//if (Reader.RecordsAffected == 0) throw new Exception("Reader RecordsAffected = 0");
while (Reader.Read()) {
if(Reader!=null) cActionForReader(Reader);
}
}
}
}
}


}
  
 
Using:
 SqlLayer.ExecuteNonQuery("SomeStoredProcedure", "ID", ID);


---------


SqlLayer.ExecuteReader("SomeStoredProcedure", new string[]{"Param1","Param2"}, new object[]{Value1,Value2}, Action);

...

void ActionForForumCollection(SqlDataReader Reader) {
LabelContent.Text += Reader[0].ToString()+" - "+Reader[1].ToString();
}