identifier

I am a beginner to android development, and was following the training guide at developer.android.com (Better tutorials would be greatly appreciated as well). I was adding the action bar when I started getting this error. Executing tasks: [:app:assembleDebug] Configuration on demand is an incubating feature. Relying on packaging to define the extension of the main artifact has been deprecated and is scheduled to be removed in Gradle 2.0 :app:preBuild :app:compileDebugNdk UP-TO-DATE :app:preDebugBuild :app:checkDebugManifest :app:preReleaseBuild :app

I have a tr in a table header that contains several input fields. Is there a way that by click on one of these input fields I can get the id of the parent table ? My tr looks like this: <table id="tableID"> <thead> <tr> <th><input type="text" name="input1" id="input1" /></th> <th><input type="text" name="input2" id="input2" /></th> <th><input type="text" name="input3" id="input3" /></th> </tr> </thead> <tbody> // ... </tbody> </table> In the click handler you can use .closest() $(this).closest('table').attr('id') $("#tableID").on("click","input[type='text']",function(){ $(this).closest('table'

I'm using WMI in C++ classes to retrieve the serial number of my motherboard. The query is the following : "SELECT SerialNumber FROM Win32_BaseBoard" I wrote the query myself so i'm not certain it is correct, but it does return something : /9637CW1/CN1296131Q0BA8/ . The returned string is in the same format on multiple computers so i assume the query is correct. My question is : am i really querying the motherboard serial number here ? Because i saw another class called "Win32_MotherboardDevice" (which has no "serial number" property). Would it be a good idea to use this as a computer

I have a JSF input text component which has an id of search . In the generated HTML output it looks like this j_idt17:search , but the number 17 is changing from time to time. How to make it to stay one? Give the JSF component which generated the HTML element with id="j_idt17" a fixed ID. In this particular case, it's likely the HTML input element's parent <form> element which is generated by the JSF <h:form> component. So, this should do: <h:form id="form"> This way the ID of the generated HTML <input> element will become form:search . 来源： https://stackoverflow.com/questions/19101461/jsf

How can I get the label of each column in a result set to prepend the name if its table? I want this to happen for queries on single tables as well as joins. Example: SELECT first_name, last_name FROM person; I want the results to be: | person.first_name | person.last_name | |-------------------|------------------| | Wendy | Melvoin | | Lisa | Coleman | I could use "AS" to define an alias for each column, but that would be tedious. I want this to happen automatically. SELECT first_name AS person.first_name, last_name AS person.last_name FROM person; The reason for my question is that I am

产生此问题的原因: 有两张表,table1和table2.产生此问题的原因就是table1里做了关联<one-to-one>或者<many-to-one unique="true">(特殊的多对一映射,实际就是一对一)来关联table2.当hibernate查找的时候,table2里的数据没有与table1相匹配的,这样就会报 No row with the given identifier exists这个错.(一句话,就是数据的问题!) 假如说,table1里有自身的主键id1,还有table2的主键id2,这两个字段. 如果hibenrate设置的单项关联,即使table1中的id2为null值,table2中id2中有值,查询都不会出错.但是如果table1中的id2字段有值,但是这个值在table2中主键值里并没有,就会报上面的错! 如果hibernate是双向关联,那么table1中的id2为null值,但是table2中如果有值,就会报这个错.这种情况目前的解决办法就是改成单项关联,或者把不对应的数据改对! 这就是报这个错的原因了,知道原因了就相应的改就行了.或许还有些人迷惑hibernate关联都配好了,怎么会出现这样的错?其实这是编程的时候出现的问题,假如说我在添加信息的时候