Extension Methods for Data Type Conversion

namespace ExtensionMethods
{
    using System;

/// <summary>
/// Used to convert one data type to another.
/// </summary>
public static class DataConversion
{
#region Int methods

/// <summary>
///Converts object to Integer if the value is valid, otherwise returns ifnone value.
/// </summary>
public static int ParseInt(this object value, int ifNone)
{
if (value == null)
{
return ifNone;
}
return ParseInt("" + value, ifNone);
}

/// <summary>
///Converts string to Integer if the value is valid, otherwise returns ifnone value.
/// </summary>
public static int ParseInt(this string value, int ifNone)
{
int i = ifNone;
if (!int.TryParse(value, out i))
{
i = ifNone;
}
return i;
}

#endregion

#region Dec methods

/// <summary>
///Converts object to decimal if the value is valid, otherwise returns ifnone value.
/// </summary>
public static decimal ParseDec(this object value, decimal ifNone)
{
if (value == null)
{
return ifNone;
}
return ParseDec("" + value, ifNone);
}

/// <summary>
///Converts string to decimal if the value is valid, otherwise returns ifnone value.
/// </summary>
public static decimal ParseDec(this string value, decimal ifNone)
{
decimal d = ifNone;
if (!decimal.TryParse(value, out d))
{
d = ifNone;
}
return d;
}

#endregion

#region Date methods

/// <summary>
///Converts string to datetime if the value is valid, otherwise returns ifnone value.
/// </summary>
public static DateTime ParseDate(this string date, DateTime ifNone)
{
DateTime res = ifNone;
if (!DateTime.TryParse(date, out res))
{
res = ifNone;
}
return res;
}

#endregion

#region Long methods

/// <summary>
///Converts object to long if the value is valid, otherwise returns ifnone value.
/// </summary>
public static long ParseLong(this object value, long ifNone)
{
if (value == null)
{
return ifNone;
}
return ParseLong("" + value, ifNone);
}

/// <summary>
///Converts string to long if the value is valid, otherwise returns ifnone value.
/// </summary>
public static long ParseLong(this string value, long ifNone)
{
long i = ifNone;
if (!long.TryParse(value, out i))
{
i = ifNone;
}
return i;
}

#endregion

#region Bool Methods
/// <summary>
///Converts string to bool if the value is valid, otherwise returns ifnone value.
/// </summary>
public static bool ParseBool(this string value, bool ifNone = false)
{
bool res = ifNone;
value = "" + value;
if (value.Length > 1)
{
value = value.Substring(0, 1);
}
value = value.ToLower();
if (value == "1" || value == "t" || value == "y")
{
res = true;
}
else if (value == "0" || value == "f" || value == "n")
{
res = false;
}
return res;
}

#endregion
}
}

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Method Name	Description
ParseInt	Converts Object/String to Integer
ParseDec	Converts Object/String to Decimal
ParseDate	Converts Object/String to DateTime
ParseLong	Converts Object/String to Long
ParseBool	Converts Object/String to Bool