public override CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
return(new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression(typeof(LabelExpressionBuilder)),
"GetLabel",
new CodePrimitiveExpression(entry.Expression.Trim()),
new CodePrimitiveExpression(context.VirtualPath)));
}
public override CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
return(new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression(typeof(ComponentExpressionBuilder)),
"GetComponent",
new CodePrimitiveExpression(entry.Expression.Trim()),
new CodeTypeOfExpression(new CodeTypeReference(entry.PropertyInfo.PropertyType))));
}
public override object EvaluateExpression(object target, System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
string value = String.Empty;
string scriptName = entry.Expression;
try
{
string functionName = null;
if (scriptName.Contains("@"))
{
var tmp = scriptName.Split('@');
functionName = tmp[0].Trim();
scriptName = tmp[1].Trim();
}
else
{
throw new ArgumentException("Invalid expression! Use <%$Iron:My.sayHello@my/functions.rb");
}
engine = IronRuntime.GetDefaultIronRuntime(SPContext.Current.Site).GetEngineByExtension(Path.GetExtension(scriptName));
value = engine.InvokeDynamicFunction(functionName, scriptName, target, entry).ToString();
}
catch (Exception ex)
{
IronRuntime.LogError("Error", ex);
if (SPContext.Current.Web.UserIsSiteAdmin && engine.IronRuntime.IronHive.Web.CurrentUser.IsSiteAdmin)
{
var eo = engine.ScriptEngine.GetService <ExceptionOperations>();
string error = eo.FormatException(ex);
IronRuntime.LogError(String.Format("Error executing script {0}: {1}", scriptName, error), ex);
value = error;
if (engine != null)
{
new IronLogger(engine.IronRuntime).Log(String.Format("Ruby Error: {0} at {1}", ex.Message, error));
}
}
else
{
value = "Error occured";
}
}
return(value);
}
public override System.CodeDom.CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, System.Web.Compilation.ExpressionBuilderContext context)
{
// here is where the magic happens that tells the compiler
// what to do with the expression it found.
// in this case we return a CodeMethodInvokeExpression that
// makes the compiler insert a call to our custom method
// 'GetValueFromKey'
CodeExpression[] inputParams = new CodeExpression[] {
new CodePrimitiveExpression(entry.Expression.Trim()),
new CodeTypeOfExpression(entry.DeclaringType),
new CodePrimitiveExpression(entry.PropertyInfo.Name)
};
return(new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression(
this.GetType()
),
"GetValueFromKey",
inputParams
));
}
// Methods
public virtual System.CodeDom.CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
}
public virtual object EvaluateExpression(object target, System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
}
public override System.CodeDom.CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context)
{
return(default(System.CodeDom.CodeExpression));
}
public override Object EvaluateExpression(Object target, System.Web.UI.BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context)
{
return(default(Object));
}
public override CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
return(new CodeSnippetExpression(entry.Expression.Trim()));
}
public override System.CodeDom.CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context)
{
throw new NotSupportedException();
}
public abstract System.CodeDom.CodeExpression GetCodeExpression(System.Web.UI.BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context);
