MonthName(monthindex)You may get it from t-SQL as I mentioned in my previous post here.
But in SSRS reports the way you need to approach is like this.
- Take a textbox to report body.
- Write the below syntax into it [As you know, it is the expression].
In any case, you need to get it by date then you still use this below function.
Hope this helps and please let me know, if you face any problems.