首页 \ 问答 \ 使用ICEfaces来表示ajax行为(Primefaces ajax behaviour vs ICEfaces)

使用ICEfaces来表示ajax行为(Primefaces ajax behaviour vs ICEfaces)

我是JSF的新手,ICEfaces是我使用的第一个组件库。 使用ICEfaces,如果我使用commandButton action通过支持bean更改inputText值,那些更改只会反映到UI。

但是使用Primefaces,我必须明确提到应该使用commandButton update属性更新哪个组件。

这是预期的行为吗? 如果是这样,JSF有标准吗?


I'm new to JSF and ICEfaces is the first component library I used. With ICEfaces, If I change an inputText value via backing bean using commandButton action, those changes just reflect to the UI.

But with Primefaces I have to mention explicitly what component should be updated using update attribute of the commandButton.

Is this the expected behavior ? If so, is there a standard for JSF ?


原文:https://stackoverflow.com/questions/17057774
更新时间:2022-07-29 15:07

最满意答案

这是一个经典的dcast操作,增加了复杂性,你需要填充原始数据,你可以使用合并:

dcast(
  DT[CJ(rank_year = as.character(-19:1), id = id, unique = TRUE), on = c("rank_year", "id")],
  id ~ rank_year, 
  value.var = "sales")
#   id  -1 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19  -2  -3  -4 -5 -6 -7 -8 -9   0  1
#1:  1 150  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA 151 152 155 NA NA NA NA NA 149 NA
#2:  2  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA  83  80  81 97 NA NA NA NA  84 NA

请注意,排序是字母顺序,因为您的rank_year是一个字符向量。 如果需要数字排序,请将其设为整数。 或者您可以在之后订购列。 此外,您不应将NA值定义为字符。


This is a classic dcast operation with the added complication that you need to pad the original data, which you can do with a merge:

dcast(
  DT[CJ(rank_year = as.character(-19:1), id = id, unique = TRUE), on = c("rank_year", "id")],
  id ~ rank_year, 
  value.var = "sales")
#   id  -1 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19  -2  -3  -4 -5 -6 -7 -8 -9   0  1
#1:  1 150  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA 151 152 155 NA NA NA NA NA 149 NA
#2:  2  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA  NA  83  80  81 97 NA NA NA NA  84 NA

Note that the ordering is alphabetic because your rank_year is a character vector. Make it an integer if you need numeric sorting. Or you could just order the columns afterwards. Also, you should not define NA values as characters.

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