How would I add a cell to a DataView that was toggleable between True and False like the dataview in the Microsoft Visual C# properties window? I can only find a way to add a text box type cell to it, but I need to add a toggleable one, and also a dropdown list type. Thanks for any help. ...
An alternative title might be: Check for existence of multiple rows? Using a combination of SQL and C# I want a method to return true if all products in a list exist in a table. If it can be done all in SQL that would be preferable. I have written a method that returns whether a single productID exists using the following SQL: SELECT...
I have a textbox filled with boolean. How do I put the contents into an array? Thanks. ...
You would think there would be a way using DirectCast, TryCast, CType etc but all of them seem to choke on it e.g.: CType("Yes", Boolean) You get: System.InvalidCastException - Conversion from string "Yes" to type 'Boolean' is not valid. ...
Hi, I'm having problems setting a BOOL using @property and @synthesize. I'm using @property BOOL isPaused; And I can get it by using [myObject isPaused]; but I cannot manage to set it. I'd like to use [myObject setPaused: NO];. I also tried @property (setter=setPaused) BOOL isPaused; but if I'm not mistaking, then I need to write that s...
I have the following class: public class NewGameContract { public boolean HomeNewGame = false; public boolean AwayNewGame = false; public boolean GameContract(){ if (HomeNewGame && AwayNewGame){ return true; } else { return false; } } } When I try to use it like so: if (networkConnection){ ...
When I write boolean bool = aString.indexOf(subString) != -1 Eclipse did not complain, does it mean that it is the same as boolean bool = aString.indexOf(subString) != -1 ? true : false? ...
Hello guys, i have a table with a column that contains Boolean type. now when i try to run a program i have a problem: System.out.println(table.getColumnClass(5)); b= (Boolean)table.getValueAt(row, 5); It prints class java.lang.Boolean but also: Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: java.lang.Str...
Hello I have a database for a certain record where it needs to store a 1 or a 0 for each day of the week. So which one would be better? Bitshifting each bit into an integer and just having an integer in the database named days or should we make all of them separate boolean values so to have sunday, monday, tuesday... columns? Note that ...
Is it possible to incur a infinite loop through the creation of a Boolean query (e.g. Library catalog or google search)? ...
false; echo $? The above will output 1,which is contradictory with all other programming languages I know. Any reason in this? ...
I tried the following && conditional for my if statement and I get a "bad range" error: <% if (from_today(contact, call.days) == 0..7) && (show_status(contact, call) == 'no status') %> Why and how can I fix it? The only other way I could do it was to have a second nested if statement and break it apart...not pretty :( ...
I have set up one of my core data attributes as a Boolean. Now, I need to set it, but XCode keeps telling me that it may not respond to setUseGPS. [ride setUseGPS: useGPS.on]; What is the method for setting a boolean in core data? All my other attributes are set this way, and they work great. So, not sure why a boolean does not wor...
I'm getting said error on this line "b = true". Now Why am I getting this error? Aren't I pointing to TurnMeOn and thus saying TurnMeOn = true? class B{ void turnOn(bool *b){b = true} }; int main(){ B *b = new B(); bool turnMeOn = false; b->turnOn(&turnMeOn); cout << "b = " << turnMeOn << endl; } ...
Since I started Java it's been very aggravating for me that it doesn't support implicit conversions from numeric types to booleans, so you can't do things like: if (flags & 0x80) { ... } instead you have to go through this lunacy: if ((flags & 0x80) != 0) { ... } It's the same with null and objects. Every other C-like language I kn...
Title. The way I tried declaring a boolean variable is by: variable=$false variable=$true Is the syntax correct? Also, if I wanted to update that variable would I just do the same format? Finally, is the following the proper syntax for using boolean variables as expressions: if [ $variable ] if [ !$variable ] Thanks! Any help is...
I'm completely ignorant of SQL/databases, but I was chatting with a friend who does a lot of database work about how some databases use a "boolean" field that can take a value of NULL in addition to true and false. Regarding this, he made a comment along these lines: "To Microsoft's credit, they have never referred to that kind of field...
Hi, I am helping out my company with some old delphi 7 code. There is a record declared at the start that is used throughout to store all the data we want outputted. type TOutput_Type = record result: String; resultoffset: String; selected: boolean; resultcateg...
Why does <xsl:if test="<XPATH to boolean value here>"> ... </xsl:if> ALWAYS return true? Since boolean can be 0,1,"false" and "true" by definition, the ONLY way to test for a boolean value is to do string comparison against these. This can't be right. ...
I would like to be able to evaluate an boolean expression stored as a string, like the following: "hello" == "goodbye" && 100 < 101 I know that there are tons of questions like this on SO already, but I'm asking this one because I've tried the most common answer to this question, BeanShell, and it allows for the evaluation of statemen...