Convert Commands C#
The type of explicit conversion you have been using in many of the Try It Out examples is a bit different from those you have seen so far in these tutorials. You have been converting string values into numbers using commands such as Convert.ToDouble() , which is obviously something that won ’ t work for every possible string.
| Convert | Result |
|---|---|
| Convert.ToBoolean(val) | val converted to bool |
| Convert.ToByte(val) | val converted to byte |
| Convert.ToChar(val) | val converted to char |
| Convert.ToDecimal(val) | val converted to decimal |
| Convert.ToDouble(val) | val converted to double |
| Convert.ToInt16(val) | val converted to short |
| Convert.ToInt32(val) | val converted to int |
| Convert.ToInt64(val) | val converted to long |
| Convert.ToSByte(val) | val converted to sbyte |
| Convert.ToSingle(val) | val converted to float |
| Convert.ToString(val) | val converted to string |
| Convert.ToUInt16(val) | val converted to ushort |
| Convert.ToUInt32(val) | val converted to uint |
| Convert.ToUInt64(val) | val converted to ulong |
Example
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
short shortResult, shortVal = 4;
int integerVal = 67;
long longResult;
float floatVal = 10.5F;
double doubleResult, doubleVal = 99.999;
string stringResult, stringVal = "17";
bool boolVal = true;
Console.WriteLine("Variable Conversion Examples\n");
doubleResult = floatVal * shortVal;
Console.WriteLine("Implicit, - > double: {0} * {1} - > {2}",
floatVal, shortVal, doubleResult);
shortResult = (short)floatVal;
Console.WriteLine("Explicit, - > short: {0} - > {1}", floatVal,
shortResult);
stringResult = Convert.ToString(boolVal) +
Convert.ToString(doubleVal);
Console.WriteLine("Explicit, - > string: \"{0}\" + \"{1}\" - > {2}",
boolVal, doubleVal, stringResult);
longResult = integerVal + Convert.ToInt64(stringVal);
Console.WriteLine("Mixed, - > long: {0} + {1} - > {2}",
integerVal, stringVal, longResult);
Console.ReadKey();
}
}
}
