public Version GetVersion(string param, bool allowNull, Version defaultValue)
{
string value = this.Context.Request.Params[param];
if (allowNull && String.IsNullOrEmpty(value))
{
return(defaultValue);
}
Version rv;
if (!Version.TryParse(value, out rv))
{
throw new Exception(String.Format(YZStringHelper.ServerSideResourceStringProcess(Resources.YZStrings.Aspx_Request_Params_Invalid_Version), param, value));
}
return(rv);
}
public Guid GetGuid(string param, bool allowNull)
{
string value = this.Context.Request.Params[param];
if (allowNull && String.IsNullOrEmpty(value))
{
return(Guid.Empty);
}
Guid rv;
if (!Guid.TryParse(value, out rv))
{
throw new Exception(String.Format(YZStringHelper.ServerSideResourceStringProcess(Resources.YZStrings.Aspx_Request_Params_Invalid_Guid), param, value));
}
return(rv);
}
public T GetEnum <T>(string param, bool allowNull, T defaultValue) where T : struct
{
string value = this.Context.Request.Params[param];
T rv;
if (!Enum.TryParse <T>(value, true, out rv))
{
if (allowNull)
{
return(defaultValue);
}
throw new Exception(String.Format(YZStringHelper.ServerSideResourceStringProcess(Resources.YZStrings.Aspx_Request_Params_Invalid_Type), param, value, typeof(T).Name));
}
else
{
return(rv);
}
}