Question

我需要将数组中的值加载到组合框，使用此代码，它仅加载数组的最后一个值？谁能帮我。

from tkinter import *
class Window():

# Define User Inputs:
    def __init__(self, master):
        master.title('Production Analysis Tool')

# EQUIPMENT PARAMETERS       
        self.L0 = Label(root, text="Equipment Parameters:").grid(row=0,column=0, sticky=W)  
        def callback(*args):
            self.system_size = int(self.system_size_raw.get())

    # Modules per String
            self.L4 = Label(root, text = "Number of Modules Per String").grid(row=20, column=1, sticky=E)
            self.modules_string_raw = IntVar(root)
            global modules_per_string
            modules_per_string = []
            for i in range(self.system_size):
                self.label = Label(root, text = "System {}".format(i+1)).grid(row=21+i, column=1, sticky=E)
                self.widget = Entry(root)
                self.widget.grid(row=21+i, column=2, sticky=W)
                modules_per_string.append(self.widget)

        # Number of Systems
        self.L2 = Label(root, text = "Number of Systems").grid(row=2, column=1, sticky=E)
        self.system_size_raw = IntVar(root)
        choices = [1,2,3,4,5,6,7,8,9,10]
        self.popupMenu2 = OptionMenu(root, self.system_size_raw, *choices).grid(row=2, column=2, sticky=W)
        self.system_size_raw.trace("w", callback)

# GEOGRAPHIC LOCATION

        self.L8 = Label(root, text="Geographic Location:").grid(row=52, column=0, sticky=W)
        self.L9 = Label(root, text = "Latitude (decimal degrees)").grid(row=53, column=1, sticky=E)
        self.lat_raw = Entry(master, bd=5, width=11)
        self.lat_raw.grid(row=53, column=2, sticky=W)

        self.L10 = Label(root, text = "Longitude (decimal degrees)").grid(row=54, column=1, sticky=E)
        self.lon_raw = Entry(master, bd=5, width=11)
        self.lon_raw.grid(row=54, column=2, sticky=W)

        self.L10 = Label(root, text = "Altitude (m)").grid(row=55, column=1, sticky=E)
        self.alt_raw = Entry(master, bd=5, width=11)
        self.alt_raw.grid(row=55, column=2, sticky=W)

    scroll = Scrollbar(root, orietn="vertical")
    scroll.grid(row-0, column=3, sticky=NS)
    window.config(scrollregion=window.bbox("all"))

root = Tk()
root.configure()
window = Window(root)
root.mainloop()

Answer 1

在循环中，您将在每次迭代中创建一个全新的List。因此，当您在setItems()上调用ComboBox时，option列表中只有一个项目。

循环还有其他几个问题，但是一旦有了有效的数组，就可以使用ComboBox方法很简单地填充Arrays.asList()：

ObservableList<String> option = FXCollections.observableList(Arrays.asList(resultArray));
cbx1.setItems(option);

话虽这么说，我怀疑您的行号是否正确：

resultArray[i] = lines.get(i).split("\t");

不知道代码中实际上lines是什么，很难专门解决这个问题，但是看起来您可以完全跳过整个resultArray，而只使用lines。

无论如何，调用split()方法都会返回一个字符串数组。也许您可以完全删除循环，然后尝试：

ObservableList<String> options = 
    FXCollections.observableArrayList(Arrays.asList(lines.split("\t"));

将值从数组更改为组合框

1 个答案: