dynamic-variables

I have a db expando class called widget. I'm passing in a json string and converting it to a dict and then adding it to the datastore. My question is how can I loop through my dict to create dynamic fields. widget = Widget.get_by_key_name(key_name) widget.name = self.request.get('wname') fields = simplejson.loads(self.request.get('wcontents')) for k,v in fields.iteritems(): widget.k = v This renders "k" as my field name as oppose to the k value in the dict. The syntax widget.k references the attribute k on object widget . To dynamically choose which attribute you set, use the built-in setattr

I want to create a var in a for loop, e.g. for(int i; i<=10;i++) { string s+i = "abc"; } This should create variables s0, s1, s2... to s10. Frans You probably want to use an array. I don't know exactly how they work in c# (I'm a Java man), but something like this should do it: string[] s = new string[10]; for (int i; i< 10; i++) { s[i] = "abc"; } And read http://msdn.microsoft.com/en-us/library/aa288453(VS.71).aspx Your first example wouldn't work in any language as you are trying to redefine the variable "i". It's an int in the loop control, but a string in the body of the loop. Based on your

I have a long text file having truck configurations. In each line some properties of a truck is listed as a string. Each property has its own fixed width space in the string, such as: 2 chracters = number of axles 2 characters = weight of the first axle 2 characters = weight of the second axle ... 2 characters = weight of the last axle 2 characters = length of the first axle spacing (spacing means distance between axles) 2 characters = length of the second axle spacing ... 2 characters = length of the last axle spacing As an example: 031028331004 refers to: number of axles = 3 first axle

I have an interesting situation. I am using a form that is included on multiple pages (for simplicity and to reduce duplication) and this form in some areas is populated with values from a DB. However, not all of these values will always be present. For instance, I could be doing something to the effect of: <?php echo set_value('first_name', $first_name); ?> and this would work fine where the values exist, but $user is not always set, since they may be typing their name in for the first time. Yes you can do isset($first_name) && $first_name inside an if statement (shorthand or regular) I am

I'm a ruby developer and its been long since I've coded in C. I have this small issue -Basically I want to use a datatype in C which behaves like a symbol in C. In other words, is this possible in C? Program asks user for name user replies - "foobar" declare an integer with the same name i.e. int foobar Thanks Unlike in interpreted languages, C does not have a dictionary of variable names at runtime. There exist no variable names at runtime at all. Hence unfortunately it is impossible to do what you want in C. It's not possible to do this in C without implementing your own symbol table to