/// <summary>
/// Converts a value to a <see cref="ConnectionStringSettings"/> object.
/// </summary>
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
if (value is string)
{
ConnectionStringsSection section = ConnectionSettingsInfo.GetSection((EnvDTE.DTE)context.GetService(typeof(EnvDTE.DTE)));
if (section != null)
{
return(section.ConnectionStrings[(string)value]);
}
}
return(null);
}
/// <summary>
/// Provides the list of valid values to choose from for the connection string.
/// </summary>
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
ConnectionStringsSection section = null;
if (String.IsNullOrEmpty(configurationArgument))
{
EnvDTE.DTE vs = (EnvDTE.DTE)context.GetService(typeof(EnvDTE.DTE));
if (vs == null)
{
return(new StandardValuesCollection(null));
}
EnvDTE.Project project = DteHelper.GetSelectedProject(vs);
if (project == null)
{
return(new StandardValuesCollection(null));
}
section = ConnectionSettingsInfo.GetSection(vs);
}
else
{
IDictionaryService dictionary = (IDictionaryService)context.GetService(typeof(IDictionaryService));
EnvDTE.ProjectItem configurationItem = dictionary.GetValue(configurationArgument) as EnvDTE.ProjectItem;
if (configurationItem != null)
{
section = ConnectionSettingsInfo.GetSection(configurationItem.get_FileNames(1));
}
}
if (section == null)
{
return(new StandardValuesCollection(null));
}
List <ConnectionStringSettings> connectionslist = new List <ConnectionStringSettings>(section.ConnectionStrings.Count);
foreach (ConnectionStringSettings setting in section.ConnectionStrings)
{
connectionslist.Add(setting);
}
connectionslist.Sort(CompareConnectionStringSettings);
return(new StandardValuesCollection(connectionslist));
}
/// <summary>
/// Determines if the value received is valid according to the current application
/// configuration file.
/// </summary>
public override bool IsValid(ITypeDescriptorContext context, object value)
{
if (value is ConnectionStringSettings)
{
return(true);
}
if (!(value is string))
{
return(false);
}
ConnectionStringsSection section = ConnectionSettingsInfo.GetSection((EnvDTE.DTE)context.GetService(typeof(EnvDTE.DTE)));
if (section == null)
{
return(false);
}
else
{
return(section.ConnectionStrings[(string)value] != null);
}
}
