conditional-statements

Condition Binding Attribute Not Working?

由 纵饮孤独 提交于 2019-12-10 00:44:11
问题 I've been struggling with this code for some time now and can't seem to find any complete answers to my question. I've created a small sample to illustrate the problem: <ListView > <ListView.ItemsPanel> <ItemsPanelTemplate> <StackPanel Margin="0,0,20,0" IsItemsHost="True" /> </ItemsPanelTemplate> </ListView.ItemsPanel> <ListView.Items> <TextBlock>Test1</TextBlock> <TextBlock>Test2</TextBlock> <TextBlock>Test3</TextBlock> <TextBlock>Test4</TextBlock> <TextBlock>Test5</TextBlock> </ListView

Run code after some time has passed or a condition is met

由 荒凉一梦 提交于 2019-12-09 18:46:03
问题 What is the best and DRYest way to write code that can be executed either when some time has passed (say, 5 seconds) or some condition is met (e.g. bool = true ) - whichever comes first . The five seconds start counting from when the script first ran, and the boolean is a global that is changed by another function. I don't think you can combine the time out and the bool-check in one statement, but another good way is also good. Pseudo code: if (bool = true OR timePassed = 5000): runCode() 回答1

Are multiple 'if' statements and 'if-else-if' statements the same for mutually exclusive conditions?

由 梦想与她 提交于 2019-12-09 17:05:08
问题 Is there any difference between writing multiple if statements and if-else-if statements ? When I tried to write a program with multiple if statements, It did not give the expected results, But it worked with if-else-if . The conditions were mutually exclusive. 回答1: When you write multiple if statements, it's possible that more than one of them will be evaluated to true, since the statements are independent of each other. When you write a single if else-if else-if ... else statement, only one

Count the total records containing specific values

由 纵然是瞬间 提交于 2019-12-09 16:30:14
问题 I have a question and hope you guys can assist me. I have a table containing two columns: type // contains 2 different values: "Raid" and "Hold" authorization // contains 2 different values: "Accepted" or "Denied" I need to make a view that returns values like this: TYPE:RAID ACCEPTED:5 DENIED:7 Basically I want to know how many of the values in TYPE are "Raid" and then how many of them are "Accepted" and "Denied". Thank you in advance!! 回答1: SELECT Type ,sum(case Authorization when 'Accepted

LINQ WHERE statement/ignore conditions

由 筅森魡賤 提交于 2019-12-09 10:48:57
问题 I need to ignore some or all conditions in WHERE statement if parameter is null or empty F.E: I have simple LINQ query var query = from x in context.a where x.p == param1 && x.i == param2 select x; How can I ignore x.p == param1 if param1 is null or emty? EDIT Tried this var query = from myLog in myContext.ApsValidationLogs where (myLog.systemtype == comboBoxSystemType.SelectedItem.ToString() || string.IsNullOrEmpty(comboBoxSystemType.SelectedItem.ToString())) && (myLog.bankid ==

Conditional breakpoint by caller in Java eclipse

由 只愿长相守 提交于 2019-12-09 09:27:13
问题 I am trying to track a change of a value using watchpoint in a Java program in Eclipse debugger. The class hierarchy is pretty complex and the value I am tracking is wrapped in container, which is used on many places. To be more specific, there is a container SizeRequirement , which has a property minimum , which I am tracking. This class is used by many layout managers on many places for many components to define requirement for component's sizes. I need to catch exact call, where the value

filter conditions from an association

由 眉间皱痕 提交于 2019-12-08 21:42:30
I have a search function, which works great for staff, so I can search by name. Now, I want filter staffs by staffgroup.groupname, but unfortunatelly i get this error: Column not found: 1054 Unknown column 'staffgroups.groupname' in 'where clause' I'm having the following tablelayout staffs (a person can belong to many groups) staff_staffgroups (HABTM-linking table) staffgroups (has a groupname) i used the conditions as follows: $tmpConditions['AND'][] = array('Staff.isActive =' => "1"); $tmpConditions['OR'][] = array('Staff.lastname LIKE' => "%$name%"); $tmpConditions['OR'][] = array(

Protege-OWL: Class must have one of each <value>

由 点点圈 提交于 2019-12-08 20:12:10
问题 I'm new to protege and i have to model a grid with similar properties to soduku, in Manchester OWL syntax. I have been searching but i can't seem to find a way to make an axiom that says "each column must have 4 cells, and must have each one of these values ". As in, assuming a 4x1 column, each cell must contain one number and the column must have all the numbers [1:4]. I have already set up some Objects , data properties and Object properties which i will leave here. I will leave the full

Conditional where clause in JPA criteria query

由 天涯浪子 提交于 2019-12-08 16:27:24
问题 I am facing an issue for JPA criteria query. How can I add multiple where clause in my Criteria Query with if else... My Requirement is: CriteriaBuilder builder = getEm().getCriteriaBuilder(); CriteriaQuery<Object> query = builder.createQuery(Object.class); // From Root<EntityClass> entity= query.from(EntityClass.class); // Select query.multiselect(entity.get("id").get("col1"),entity.get("id").get("col2")); // Where Predicate p1 = builder.and(builder.equal(entity.get("col3"), value3));

C# inline conditional in string[] array

由 拟墨画扇 提交于 2019-12-08 15:11:45
问题 How could you do the following inline conditional for a string[] array in C#. Based on a parameter, I'd like to include a set of strings...or not. This question is a followup of this one on stackoverflow. //Does not compile bool msettingvalue=false; string[] settings; if(msettingvalue) settings = new string[]{ "setting1","1", "setting2","apple", ((msettingvalue==true) ? "msetting","true" :)}; If msettingvalue is true, I'd like to include two strings "msetting","true" : otherwise no strings.
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