/// <summary>
/// This class is responsible for getting the current iterate item object within an iteration. i.e. The property name starts with "[]."
/// We do this by navigating up through the parent nodes to determine which of them are iterate elements.
/// Once found we get the current iteration context item.
/// If "[]." is not specified, the original approach is used of reflecting the parameterObject to the reflection path specified in the property
/// </summary>
/// <param name="ctx"></param>
/// <param name="baseTag"></param>
/// <param name="parameterObject"></param>
/// <returns></returns>
/// <remarks>
/// Created By: Richard Beacroft
/// Created Date: 11\10\2013
/// </remarks>
protected object GetMemberPropertyValue(SqlTagContext ctx, BaseTag baseTag, object parameterObject)
{
if (String.IsNullOrEmpty(baseTag.Property))
{
return(parameterObject);
}
#if dotnet35
var bindingReplacement = ctx.BuildPropertyBindingReplacements(baseTag).FirstOrDefault();
#else
BindingReplacement bindingReplacement = null;
foreach (var replacement in ctx.BuildPropertyBindingReplacements(baseTag))
{
bindingReplacement = replacement;
break;
}
#endif
if (bindingReplacement != null)
{
if (String.IsNullOrEmpty(bindingReplacement.FullPropertyName))
{
return(bindingReplacement.Value);
}
return(_tagPropertyProbe.GetMemberValue(ctx, baseTag, bindingReplacement.FullPropertyName, parameterObject));
}
return(_tagPropertyProbe.GetMemberPropertyValue(ctx, baseTag, parameterObject));
}
//public static void ReplacePropertyBindingUsage(IList<BindingExpression> bindings, BaseTag baseTag)
//{
// var conditional = baseTag as Conditional;
// foreach (var binding in bindings)
// {
// if (baseTag != null)
// {
// if (HasBindingExpression(baseTag.Property))
// {
// baseTag.Property = ReplaceBindingExpressions(binding, baseTag.Property);
// }
// if (conditional != null)
// {
// if (HasBindingExpression(conditional.CompareProperty))
// {
// conditional.CompareProperty = ReplaceBindingExpressions(binding, conditional.CompareProperty);
// }
// if (HasBindingExpression(conditional.CompareValue))
// {
// conditional.CompareValue = ReplaceBindingExpressions(binding, conditional.CompareValue);
// }
// }
// }
// }
//}
private static IList <BindingReplacement> BuildBindingReplacements(BindingExpression binding, string content, char?surroundChar = null)
{
var replacements = new List <BindingReplacement>();
if (String.IsNullOrEmpty(content))
{
return(replacements);
}
var bindingExpressions = FindBindingExpressions(content, surroundChar);
foreach (var bindingExpression in bindingExpressions)
{
if (String.Compare(bindingExpression.Name, binding.Name, true) == 0)
{
var replacement = new BindingReplacement
{
Name = binding.Name,
Placeholder = bindingExpression.Placeholder,
Value = binding.Value,
FullPropertyName = binding.FullPropertyName
};
if (!String.IsNullOrEmpty(binding.Value) || !String.IsNullOrEmpty(binding.FullPropertyName))
{
replacements.Add(replacement);
}
}
}
return(replacements);
}
internal void ReplaceBindingName(BindingReplacement replacement)
{
if (replacement == null)
{
throw new ArgumentNullException("replacement");
}
this._currentPropertyName = this._propertyPlaceholder;
replacement.Replace(ref _currentPropertyName);
}
