/// <summary>
/// Helper method that instantiates the LocalDBResourceProvider and retrieves the resource entry
/// </summary>
public static object GetLocalResourceObject(string classKey, string resourceKey, CultureInfo culture)
{
Debug.WriteLine(String.Format(CultureInfo.InvariantCulture, "DBResourceExpressionBuilder.GetGlobalResourceObject({0}, {1}, {2})", classKey, resourceKey, culture));
DBResourceExpressionBuilder.EnsureResourceProviderFactory();
IResourceProvider provider = DBResourceExpressionBuilder.s_resourceProviderFactory.CreateLocalResourceProvider(classKey);
return(provider.GetObject(resourceKey, culture));
}
/// <summary>
/// Returns the resource value for an ExternalResource expression in non-compiled pages
/// NB! For non-compiled pages, expressions are evaluated at run time.
/// </summary>
public override object EvaluateExpression(object target, BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
Debug.WriteLine(String.Format(CultureInfo.InvariantCulture, "DBResourceExpressionBuilder.EvaluateExpression({0}, {1}, {2}, {3})", target, entry, parsedData, context));
DBResourceExpressionFields fields = parsedData as DBResourceExpressionFields;
DBResourceExpressionBuilder.EnsureResourceProviderFactory();
IResourceProvider provider = DBResourceExpressionBuilder.s_resourceProviderFactory.CreateGlobalResourceProvider(fields.ClassKey);
return(provider.GetObject(fields.ResourceKey, null));
}
/// <summary>
/// Validates an DBResource expression by attempting to access resources for the expression. Page parsing will fail if the resource cannot be found.
/// NB! Expressions are parsed at design time, and prior to compilation
/// TODO HES Skip DB look-up to avoid DB access to be required
/// </summary>
public override object ParseExpression(string expression, Type propertyType, ExpressionBuilderContext context)
{
Debug.WriteLine(String.Format(CultureInfo.InvariantCulture, "DBResourceExpressionBuilder.ParseExpression({0}, {1}, {2})", expression, propertyType, context));
if (string.IsNullOrEmpty(expression))
{
throw new ArgumentException(String.Format(Thread.CurrentThread.CurrentUICulture, Properties.Resource.Expression_TooFewParameters, expression));
}
DBResourceExpressionFields fields = null;
string classKey = null;
string resourceKey = null;
string[] expParams = expression.Split(new char[] { ',' });
if (expParams.Length > 2)
{
throw new ArgumentException(String.Format(Thread.CurrentThread.CurrentUICulture, Properties.Resource.Expression_TooManyParameters, expression));
}
if (expParams.Length == 1)
{
classKey = context.VirtualPath;
string vp = context.VirtualPath.Remove(0, 1);
classKey = vp.Remove(0, vp.IndexOf('/') + 1);
resourceKey = expParams[0].Trim();
//throw new ArgumentException(String.Format(Thread.CurrentThread.CurrentUICulture, Properties.Resource.Expression_TooFewParameters, expression));
}
else
{
classKey = expParams[0].Trim();
resourceKey = expParams[1].Trim();
}
fields = new DBResourceExpressionFields(classKey, resourceKey);
DBResourceExpressionBuilder.EnsureResourceProviderFactory();
IResourceProvider rp = DBResourceExpressionBuilder.s_resourceProviderFactory.CreateGlobalResourceProvider(fields.ClassKey);
object res = rp.GetObject(fields.ResourceKey, CultureInfo.InvariantCulture);
if (res == null)
{
throw new ArgumentException(String.Format(Thread.CurrentThread.CurrentUICulture, Properties.Resource.RM_ResourceNotFound, fields.ResourceKey));
}
return(fields);
}