我在一个闪亮的应用程序中使用了datatables包,并且它运行良好,但是当我编辑一个单元格/值时,焦点从当前行更改为第一行。该表很长,因此必须回滚到正在编辑的行是一个问题。有没有选择特定行的方法?那么在重新加载表格后,我可以返回到正在编辑的行。
这是数据表以闪亮方式呈现的代码。有什么建议吗?
output$book_table <- DT::renderDT(RVTables$book %>%
filter(deal == as.numeric(input$deal_choice)),
selection = 'single',
editable = TRUE,
rownames = FALSE,
options = list(
autoWidth = TRUE,
ordering = FALSE,
pageLength = 12,
scrollX = TRUE,
scrollY = TRUE,
bLengthChange = FALSE,
searching = FALSE
)
)
修改:
我找到了选择行的方法,但是我无法动态更新它。
row_edit<-3
output$book_table <- DT::renderDT(RVTables$book %>%
filter(deal == as.numeric(input$deal_choice)),
selection = list(mode='single',selected=row_edit)
editable = TRUE,
rownames = FALSE,
options = list(
autoWidth = TRUE,
ordering = FALSE,
pageLength = 12,
scrollX = TRUE,
scrollY = TRUE,
bLengthChange = FALSE,
searching = FALSE
)
)
并在编辑事件中使用全局分配也无效:
row_edit<<- 22
编辑
这是一个示例应用程序,用于显示我要执行的操作。
例如,编辑第42行,看看高亮显示的下一行如何回到第一页,如果您要多次编辑单个值以查看效果,这很烦人。
library(shiny)
library(shinyjs)
library(tidyverse)
library(DT) #load after shiny
data_input <- data.frame(ID=seq(1,50),
weight=sample(50:65,50,replace = TRUE),
height=sample(150:225,50,replace = TRUE)
)
#shiny---
shinyApp(
#ui----
ui= fluidPage(
fluidRow(
br(),
column(2,
actionButton("increase_weight","increase weight"),
uiOutput("show_row_selected"),
uiOutput("last_row_selected")
),
column(4,DT::DTOutput("data_table"))
)
),
server=function(input,output,session){
#save data frame as a reactive value
RV <- reactiveValues(
data=data_input
)
#try to save last row selected----
row_select <- reactive({
#case when code below fails, use row 3 to illustrate code
3
#uncomment code below and run to see error
# case_when(
# #valid row selected
# length(input$data_table_rows_selected)>0 ~ as.numeric(input$data_table_rows_selected),
# #after update, row object is empty to use last selected row
# #this is now recursive and app fails - "evaluation nested too deeply: infinite recursion...."
# length(input$data_table_rows_selected)==0 ~ row_select()
# )
})
#render data frame for output
output$data_table <- DT::renderDT(RV$data,
selection = list(mode="single",selected=row_select()),
editable = TRUE,
rownames = FALSE,
options=list(
autoWidth=TRUE,
scrollX = TRUE,
ordering=FALSE,
pageLength=12,
scrollY = TRUE,
bLengthChange= FALSE,
searching=FALSE
)
)
#edit a single cell----
observeEvent(input$data_table_cell_edit, {
info <- input$data_table_cell_edit
edit_row <- info$row
edit_col <- info$col+1 # column index offset by 1
edit_value <- info$value
#find leg to be edited
ID <- edit_row
RV$data[ID,edit_col] <-as.numeric(edit_value)
})
#increase weight by one----
observeEvent(input$increase_weight, {
edit_row <- input$data_table_rows_selected
RV$data[edit_row,"weight"] <- RV$data[edit_row,"weight"]+1
})
#show current row selected----
output$show_row_selected <- renderText({
paste0("row selected: ",as.character(as.numeric(input$data_table_rows_selected)))
})
#show last row selected----
output$last_row_selected <- renderText({
paste0("row selected: ",as.character(row_select()))
})
})
答案 0 :(得分:0)
在this问题的帮助下,这是一些有效的代码。
{
"id": 89,
"accountNo": "000000089",
"status": {
"id": 300,
"code": "clientStatusType.active",
"value": "Active"
},
"subStatus": {
"active": false,
"mandatory": false
},
"active": true,
"activationDate": [
2018,
8,
13
],
"firstname": "Albertina",
"lastname": "Ben-Patterson",
"displayName": "Albertina Ben-Patterson",
"mobileNo": "0201234598",
"gender": {
"active": false,
"mandatory": false
},
"clientType": {
"active": false,
"mandatory": false
},
"clientClassification": {
"active": false,
"mandatory": false
},
"isStaff": false,
"officeId": 10,
"officeName": "Greater Accra Region",
"timeline": {
"submittedOnDate": [
2018,
8,
13
],
"submittedByUsername": "admin",
"submittedByFirstname": "App",
"submittedByLastname": "Administrator",
"activatedOnDate": [
2018,
8,
13
],
"activatedByUsername": "admin",
"activatedByFirstname": "App",
"activatedByLastname": "Administrator"
},
"savingsAccountId": 8,
"groups": [],
"clientNonPersonDetails": {
"constitution": {
"active": false,
"mandatory": false
},
"mainBusinessLine": {
"active": false,
"mandatory": false
}
}
}