private static string EvalComponentExpression(ExpressionParser parser, TemplateToken token, TemplateParserContext context)
{
TemplateToken.ParameterizedExpression pExpr = token.ExtractParameters();
string componentName = pExpr.MainExpression;
if (pExpr.MainExpression.StartsWith("(") && pExpr.MainExpression.EndsWith(")"))
{
componentName = parser.Evaluate <string>(pExpr.MainExpression, context, token.TokenPosition);
}
TemplateParserContext newContext = (TemplateParserContext)context.CreateLocal();
foreach (string varName in pExpr.Parameters.Keys)
{
newContext.SetLocal(varName, parser.Evaluate(pExpr.Parameters[varName], context));
}
ControllerAction viewComponent = WebAppHelper.GetViewComponent(componentName);
if (viewComponent == null)
{
throw new TemplateRenderingException("View component " + componentName + " not found", token.TokenPosition);
}
try
{
return(WebAppHelper.RunViewComponent(viewComponent, newContext));
}
catch (Exception e)
{
throw new TemplateRenderingException("Error rendering view component " + componentName, e, token.TokenPosition);
}
}
public static string RenderComponent(View view, string name, params object[] parameters)
{
TemplateParserContext newContext = new TemplateParserContext(view, view.ViewTemplate);
for (int i = 0; i < parameters.Length; i += 2)
{
newContext.SetLocal((string)parameters[i], parameters[i + 1], parameters[i + 1] == null ? typeof(object) : parameters[i + 1].GetType());
}
return(WebAppHelper.RunViewComponent(WebAppHelper.GetViewComponent(name), newContext));
}