Question

我可以在GoldenLayout中使用Slickgrid和普通网格。

但是，我正在尝试实现Dataview，而我遇到了onRowCountChanged.subscribe事件的问题：

#!/usr/bin/env python

import os
import sys
import threading

class fifo_buffer(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
        self.dict_buffer = {}

    def run(self):
        print("run() starts.")
        path = "./sample.fifo"
        fifo = open(path, "r")
        count = 0
        for line in fifo:
            count = count + 1
            self.dict_buffer[count] = line
            print("in for expression: before show_dict()")
            self.show_dict()    # you could process dict_buffer here, but obviously this dict changes over time, and you could only access the lines that run() thread has already processed.
            #print str(count) + " -> " + self.dict_buffer[count]
        fifo.close()
        print("run() completes.")

    def get_packet(self, index):
        return self.dict_buffer[index]

    def len_dict(self):
        print("Length dict: " + str(len(self.dict_buffer)))

    def show_dict(self):
        print(self.dict_buffer)

def main():
   fb = fifo_buffer()
   fb.start()
   # fb.join()
   # print("get_packet(2): " + fb.get_packet(2))
   # you could process dict_buffer here, but you could only process/access the lines which run() thread has already processed.
   fb.len_dict()
   fb.show_dict()

if __name__ == "__main__":
   main()

我认为我的问题是我不知道如何引用回到对象的_grid对象（我不熟悉Javascript）。

任何使用带有SlickGrid Dataview的Goldenlayout的人都可以分享他们创建SlickGrid组件的方式吗？

谢谢。

Answer 1

对我来说似乎更像是一个上下文问题。在_createGrid方法中，在变量中定义外部this的上下文并使用它。像

StockGridComponent.prototype._createGrid = function () {

  this._grid = new Slick.Grid(
    this._container.getElement(),
    this._dataView,
    this._columns,
    this._options
  );

  this._grid.setSelectionModel(new Slick.CellSelectionModel());
  var self = this; // store the context and use later

  this._dataView.onRowCountChanged.subscribe(function (e, args) {
    console.log(this);   <-- this here will refer to context of callback method
    self._grid.updateRowCount();
    self._grid.render();
  }
);

希望这可以解决问题。

在Goldenlayout中使用Slickgrid Dataview

1 个答案: