private ResolvedBinding ProcessBinding(DothtmlBindingNode node, DataContextStack context)
{
var value = node.Value;
var bindingOptions = controlResolver.ResolveBinding(node.Name);
Expression expression = null;
Exception parsingError = null;
try
{
expression = bindingParser.Parse(value, context, bindingOptions);
}
catch (Exception exception)
{
parsingError = exception;
}
return(new ResolvedBinding()
{
BindingType = bindingOptions.BindingType,
Value = node.Value,
Expression = expression,
DataContextTypeStack = context,
ParsingError = parsingError,
BindingNode = node
});
}
protected override IAbstractBinding CompileBinding(DothtmlBindingNode node, BindingParserOptions bindingOptions, IDataContextStack context, IPropertyDescriptor property)
{
if (context == null)
{
node.AddError("The DataContext couldn't be evaluated because of the errors above.");
}
return(treeBuilder.BuildBinding(bindingOptions, context, node, property));
}
/// <summary>
/// Processes the binding node.
/// </summary>
public IAbstractBinding ProcessBinding(DothtmlBindingNode node, IDataContextStack context, IPropertyDescriptor property)
{
var bindingOptions = controlResolver.ResolveBinding(node.Name);
if (bindingOptions == null)
{
node.NameNode.AddError($"Binding {node.Name} could not be resolved.");
bindingOptions = controlResolver.ResolveBinding("value"); // just try it as with value binding
}
if (context != null && context.NamespaceImports.Count > 0)
{
bindingOptions = bindingOptions.AddImports(context.NamespaceImports);
}
return(CompileBinding(node, bindingOptions, context, property));
}
protected override IAbstractBinding CompileBinding(DothtmlBindingNode node, BindingParserOptions bindingOptions, IDataContextStack context)
{
Expression expression = null;
Exception parsingError = null;
ITypeDescriptor resultType = null;
if (context == null)
{
parsingError = new DotvvmCompilationException("The DataContext couldn't be evaluated because of the errors above.", node.Tokens);
}
else
{
try
{
expression = bindingExpressionBuilder.Parse(node.Value, (DataContextStack)context, bindingOptions);
resultType = new ResolvedTypeDescriptor(expression.Type);
}
catch (Exception exception)
{
parsingError = exception;
}
}
return(treeBuilder.BuildBinding(bindingOptions, context, node, resultType, parsingError, expression));
}
/// <summary> /// Compiles the binding. /// </summary> protected abstract IAbstractBinding CompileBinding(DothtmlBindingNode node, BindingParserOptions bindingOptions, IDataContextStack context, IPropertyDescriptor property);
public IAbstractBinding BuildBinding(BindingParserOptions bindingOptions, IDataContextStack dataContext, DothtmlBindingNode node, IPropertyDescriptor property)
{
return(new ResolvedBinding(bindingService, bindingOptions, (DataContextStack)dataContext, node.Value, property: property as DotvvmProperty)
{
DothtmlNode = node,
});
}
/// <summary> /// Compiles the binding. /// </summary> protected abstract IAbstractBinding CompileBinding(DothtmlBindingNode node, BindingParserOptions bindingOptions, IDataContextStack context);
public void Visit(DothtmlBindingNode binding)
{
ResolveFromParent(binding);
}
public void Visit(DothtmlBindingNode binding)
{
ResolveFromParent(binding);
}
public IAbstractBinding BuildBinding(BindingParserOptions bindingOptions, IDataContextStack dataContext, DothtmlBindingNode node, ITypeDescriptor resultType = null, Exception parsingError = null, object customData = null)
{
return(new ResolvedBinding()
{
BindingType = bindingOptions.BindingType,
Value = node.Value,
Expression = (Expression)customData,
DataContextTypeStack = (DataContextStack)dataContext,
ParsingError = parsingError,
DothtmlNode = node,
ResultType = resultType
});
}
