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POHow do I convert int to a double?
 

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  1. POHow do I convert int to a double?
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    <p>I am having trouble converting my int values to doubles. I know I have to cast them, and I am trying to do that; but C# still gives me an error for converting int to double and says I need a cast. Also It gives me an error for trying to obtain the value for totalunits under values. it says: "<strong>**<em>A local variable named 'values'cannot be declared in this scope because it would give a different meaning to 'values', which is already used in a parent or current scope to denote some else.</em></strong> Im confused on this error because I want totalunits to change values as well. Can somweone help me? Thank you.</p> <p>Justin</p> <p>Here is some of my code:</p> <pre><code>//Get the Refurb_Rate for the day private double GetRefurbRate() { string sql = ""; double Refurb_Rate = 0; int totalRefurb = 0; int totalUnits = 0; string error_msg = ""; //Getting the value for sql for totalRefurb sql = "SELECT COUNT(distinct rp.repair_ord) " + "FROM " + schema + ".repair_part rp " + "WHERE rp.repair_type = 'REFURB' and rp.created_date &gt; '" + DateTime.Now.ToString("d-MMM-yyyy") + "' "; while (true) { if (!myDb.RunSql(sql, true)) { error_msg = "DBError for getting Refurb Rate"; break; } if (myDb.dbRdr.HasRows) { if (myDb.dbRdr.Read()) { object[] values = new object[myDb.dbRdr.FieldCount]; myDb.dbRdr.GetValues(values); Console.WriteLine(values[0].ToString()); totalRefurb = Convert.ToDouble(values[0].ToString());());// This is where convert to double error comes in. //Getting the value from sql for totalUnits sql = "SELECT count(distinct rp.repair_ord) " + "FROM " + schema + ".repair_part rp " + "WHERE rp.repair_type = 'REFURB' and rp.ref_desig is null and rp.created_date &gt; '" + DateTime.Now.ToString("d-MMM-yyyy") + "' "; while (true) { if (!myDb.RunSql(sql, true)) { error_msg = "DBError for getting Refurb Rate"; break; } if (myDb.dbRdr.HasRows) { if (myDb.dbRdr.Read()) { // This is where the values error comes in object[] values = new object[myDb.dbRdr.FieldCount]; myDb.dbRdr.GetValues(values); Console.WriteLine(values[1].ToString()); totalUnits = Convert.ToDouble(values[1].ToString());// This is where convert to double error comes in. try { //Formula for Refurb Rate Refurb_Rate = totalRefurb / totalUnits * 100; } catch (Exception e) { Console.WriteLine(e); } } } break; } myDb.dbRdr.Close(); if (error_msg != String.Empty) { MessageBox.Show(error_msg, "Get Refurb Rate", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); } return Refurb_Rate; } } } } </code></pre>
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    1. USJSBձոգչ
    1. USJustin
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    1. COThis is a terrible piece of code because there is just so much nesting in it. Break down the logic in several methods, **never use `while (true)`** and get rid of those nesting `if`'s!
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      1. POHow do I convert int to a double?
      1. USDan Abramov
    2. COAside from the syntax error you're seeing, this method is begging for some refactoring.
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      1. POHow do I convert int to a double?
      1. USJSBձոգչ
    3. CO`while(true)` is sometimes a useful construct. In this, however, it is there to turn all the `break` statements into gotos. Gotos are bad, whether they are explicity there or not. (By "gotos", of course I mean "unstructured flows of execution".) @gaearon is right, this is terrible.
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      1. POHow do I convert int to a double?
      1. USJeffrey L Whitledge
 

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