/// <summary>
/// Determine if the Input value can be converted to TargetType
/// </summary>
public static bool CanConvertTo(this object Input, Type TargetType)
{
if (Input == null || Input.GetType().IsAssignableFrom(TargetType) || TargetType.IsAssignableFrom(Input.GetType()) || TargetType == typeof(string))
{
return(true);
}
return(Utility.GetConverter(Input.GetType()).CanConvertTo(TargetType) ||
Utility.GetConverter(TargetType).CanConvertFrom(Input.GetType()) ||
(TargetType.IsEnumType() && Input.GetType().IsEnumType()));
}
/// <summary>
/// Convert value to specific T type
/// </summary>
public static object ConvertTo(this object Input, Type TargetType, OnErrorAction OnErrorAction = OnErrorAction.ThrowException)
{
if (Input == null || TargetType.IsAssignableFrom(Input.GetType()))
{
return(Input);
}
if (TargetType == typeof(string))
{
try { return(Utility.GetConverter(Input.GetType()).ConvertTo(Input, TargetType)); }
catch { return(Input.ToString()); }
}
if (!CanConvertTo(Input, TargetType))
{
if (OnErrorAction == OnErrorAction.ThrowException)
{
throw new Exception("Can't convert type " + Input.GetType().Name + " to type " + TargetType.Name);
}
else if (OnErrorAction == OnErrorAction.ReturnNull)
{
return(Utility.GetDefault(TargetType));
}
else
{
return(Input);
}
}
try
{
if (TargetType.IsEnumType() && Input.GetType().IsEnumType())
{
Input = Input + "";
}
try { return(Utility.GetConverter(TargetType).ConvertFrom(Input)); }
catch (Exception ex)
{
if (TargetType == typeof(string) && Input is IList)
{
return(Utility.SerializeArrayAsString(Input as IList));
}
if (TargetType.IsList() && Input.GetType() == typeof(string))
{
return(Utility.DeSerializeArrayFromString(TargetType, Input as string));
}
throw ex;
}
}
catch
{
try { return(Utility.GetConverter(Input.GetType()).ConvertTo(Input, TargetType)); }
catch
{
if (OnErrorAction == OnErrorAction.ThrowException)
{
throw;
}
else if (OnErrorAction == OnErrorAction.ReturnNull)
{
return(Utility.GetDefault(TargetType));
}
else
{
return(Input);
}
}
}
}
