I have three dropdown boxes on a Main_Form. I will add the chosen content into three fields on the form, Form_Applications.
These three lines are added :
Form_Applications.Classification = Form_Main_Form.Combo43.Value
Form_Applications.Countryname_Cluster = Form_Main_Form.Combo56.Value
Form_Applications.Application = Form_Main_Form.Combo64.Value
The first two work perfectly but the last one gives error code 438!
I can enter in the immediate window :
Form_Applications.Classification = "what ever"
Form_Applications.Countryname_Cluster = "what ever"
but not for the third line. Then, after enter, the Object doesn't support this property or method error appears.
I didn't expect this error as I do exactly the same as in the first two lines.
Can you please help or do you need more info ?
In VBA Application is a special word and should not be used to address fields.
FormName.Application will return an object that points to the application instance that is running that form as opposed to an object within that form.
From the Application object you can do all sorts of other things such as executing external programs and other application level stuff like saving files/
Rename your Application field to something else, perhaps ApplicationCombo and change your line of code to match the new name. After doing this the code should execute as you expect.
Form_Applications.Application is referring to the application itself. It is not a field, so therefore it is not assignable (at least with a string).
You really haven't provided enough code to draw any real conclusions though. But looking at what you have posted, you definitely need to rethink your approach.
It's to say definitely but you are not doing the same. It looks like you are reading a ComboBox value the same (I will assume Combo64 is the same as 43 and 56) but my guess is that what you are assigning that value to is the problem:
Form_Applications.Application =
Application is not assignable. Is there another field you meant to use there?
Related
I am working on an agent-based model and now I'm trying to experiment with CompareRuns.
when I execute the experiment, it should simulate the model several times and after each simulation, a dataset of sample data should be filled.
there is also a state chart in Main agent and each state has a traceln("..."). so after passing through each state, something must be printed.
the problem is that neither the print commands return anything, nor the dataset in which I store my data returns anything but zeros.
P.S.: I also have a GIS map in my model. could that be the reason for misbehaving of Anylogic?
I found the problem and fixed it.
check and double check all the "Parameter"s in the Main agent and make sure they all have different names and labels. the problem was that two parameters had same labels and it messed up the whole experiment.
I fixed the labels and the default value of all parameters, deleted the CompareRun experiment, made a new one and it worked.
I've been working on designing an experiment in Psychopy, and I am running into some problems with the interaction between my conditions file and a text element. I am trying to get my conditions file (CSV format) to specify the position of two text elements (the variables are "NowPos" and "LaterPos"). In the CSV file, underneath the headers, I have two different coordinate pairings listed. In the "position [x,y]" field of the text element conditions, I have written "$NowPos" (or "$LaterPos", depending on the element). With this, I intend to direct PsychoPy to read the specified variable from my conditions file, which is placed in a loop outside of the routine that calls for the variables it contains. However, it appears that the code automatically compiled by PsychoPy is trying to define "NowPos" and "LaterPos" at the beginning of the program. Because of this, they are undefined at the time that PsychoPy asks for them, causing my code to fail.
Do you have any ideas for getting PsychoPy to look for the right conditions file immediately? Could I have formatted something incorrectly?
Next to the position field, you need to select an option like "Set every repeat", so that a new position value is accessed on every trial.
The problem you describe sounds like you have left it at the default setting of "Constant", in which case the value only needs to be set once, at the beginning of the experiment. At that stage, as you note, the loop hasn't been created, thus its variables haven't been defined, and aren't available to refer to.
What does backpatching mean ? Please illustrate with a simple example.
Back patching usually refers to the process of resolving forward branches that have been planted in the code, e.g. at 'if' statements, when the value of the target becomes known, e.g. when the closing brace or matching 'else' is encountered.
In intermediate code generation stage of a compiler we often need to execute "jump" instructions to places in the code that don't exist yet. To deal with this type of cases a target label is inserted for that instruction.
A marker nonterminal in the production rule causes the semantic action to pick up.
Some statements like conditional statements, while, etc. will be represented as a bunch of "if" and "goto" syntax while generating the intermediate code.
The problem is that, These "goto" instructions, do not have a valid reference at the beginning(when the compiler starts reading the source code line by line - A.K.A 1st pass). But, after reading the whole source code for the first time, the labels and references these "goto"s are pointing to, are determined.
The problem is that can we make the compiler able to fill the X in the "goto X" statements in one single pass or not?
The answer is yes.
If we don't use backpatching, this can be achieved by a 2 pass analysis on the source code. But, backpatching lets us to create and hold a separate list which is exclusively designed for "goto" statements. Since it is done in only one pass, the first pass will not fill the X in the "goto X" statements because the comipler doesn't know where the X is at first glance. But, it does stores the X in that exclusive list and after going through the whole code and finding that X, the X is replaced by that address or reference.
Backpaching is the process of leaving blank entries for the goto instruction where the target address is unkonown in the forward transfer in the first pass and filling these unknown in the second pass.
Backpatching:
The syntax directed definition can be implemented in two or more passes (we have both synthesized attributes and inherited attributes).
Build the tree first.
Walk the tree in the depth-first order.
The main difficulty with code generation in one pass is that we may not know the target of a branch when we generate code for flow of control statements
Backpatching is the technique to get around this problem.
Generate branch instructions with empty targets
When the target is known, fill in the label of the branch instructions (backpatching).
backpatching is a process in which the operand field of an instruction containing a forward reference is left blank initially. the address of the forward reference symbol is put into this field when its definition is encountered in the program.
Back patching is the activity of filling up the unspecified information of labels
by using the appropriate semantic expression in during the code generation process.
It is done by:
boolean expression.
flow of control statement.
What does a period with a name before a function mean when calling it in Arduino code (C/C++)?
For example, I am using an OLED display library and one function is called like this:
display.setTextSize(1);
I know what this function does, but what does the syntax mean where there is some variable "display" or something before it?
In other words, why is a function called this way versus a normal call with just the function name and input?
"display" is an instance of an object, or a reference to some global/system variable. The "setTextSize" method is a member of that object. The end result means that you are setting the text size of, or on, "display".
This lets you do things more concisely by being able to say display.setTextSize(1), foo.setTextSize(1) and bar.setTextSize(1) without having to specify unique functions for each different item on which you are setting the text size.
Within setTextSize you will probably see "this". "this" in only this one instance means "display". If you used bar.setTextSize(1), "this" would mean "bar" and so on.
I could be incredibly wrong, but I think its got to do with structures. In the arduino environment there's a few different functions that revolve around using serial communication. They have it set up as a library that gets called on whenever you use Serial.something();
The something could be any of the functions that is part of serial, like Serial.read();
EDIT forgot to put a source in. http://arduino.cc/en/Reference/Serial
Apologies if I'm way off, still new at this, and also can't figure out how to just make a comment.
How can I validate the cells in a DataGridColumn individually? (ActionScript 3.5) The validation is configured per-cell, based on fields in the given row. For example
FIELD VALUE TYPE
age 13 Integer
height 13x3 Integer
registered true Boolean
temperature 98.G6 Float
In this case, of course 13x3 and 98.G6 would be invalid.
It's easy to write a Validator ; and to access the data provider objects.
But how do I get individual access to the GUI cell objects so I can set the errorString on an individual cell, either directly or through a Validator?
The itemRenderer/ TextInput control is re-used across the cells for performance reasons, so accessing the GUI-level objects is tricky.
Edit
Answers:
One way to validate and display the invalidation markings, but not per-cell, is to validate all data-provider objects and then set the errorString on the entire grid.
One way to validate per-cell is on the itemEditEnd event handler. (See these pages A B C D). One disadvantage is that it only allows access to the cells from the "inside", not in an action that validates the grid on command.
A custom itemRenderer is another possibility, as in the answer below, but like 3 above, it only allows access to the cells from the "inside", not in an action that validates the grid on command.
See Richard Haven's answer below.
And here's how to access the GUI objects: The list of relevant GUI objects is a protected field; so you can access it by subclassing, then iterate over the GUI-components which represent the cells and set the errorString on each one.
This website at BigResource asks how to access an individual cell. The third post answers there question and provides a link to a better resource than this. Figured you would want both. Hopefully this helps.
If you are looking for arbitrary validation (e.g. on a button or page navigation) rather than immediate navigation (e.g. on cell exit or end-of-edit), then the data is in the underlying dataProvider. I would do validations there rather than dig around inside the grid.
You can add a flag to the data item so the item renderer displays it as an error (or use an external list to flag it).
Cheers
Are you sure you actually want to access the individual cells' DisplayObjects? The component manages instances so that it only creates as many as it needs to display (so that huge datasets don't require a huge number of DisplayObjects on screen).
I think a better alternative would be to provide your DataGridColumn with a custom itemRenderer. You can write this class to accept a validator and update its appearance, and there are a bunch of great tutorials around about that.