我如何将sqlite3
db中的所有记录输出到tkinter treeview
时遇到问题。它只输出db
中的最后一条记录,而且列中没有记录print
方法将所有db
记录打印到我的终端,但不会将所有记录输出到treeview
窗口小部件。
欢迎您提出建议
from tkinter import ttk
import tkinter as tk
import sqlite3
def connect():
conn = sqlite3.connect("TRIAL.db")
cur = conn.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS profile(id INTEGER PRIMARY KEY,
First TEXT, Surname TEXT)")
conn.commit()
conn.close()
def View():
conn = sqlite3.connect("TRIAL.db")
cur = conn.cursor()
cur.execute("SELECT * FROM profile")
rows = cur.fetchall()
for row in rows:
print(row) # it print all records in the database
tree.insert("", tk.END, values=row)
conn.close()
connect() # this to create the db
root = tk.Tk()
root.geometry("400x400")
tree= ttk.Treeview(root, column=("column", "colunn1"))
tree.heading("#0", text="NUMBER")
tree.heading("#1", text="FIRST NAME")
tree.heading("#2", text="SURNAME")
tree.pack()
b2 = tk.Button(text="view data", command=View)
b2.pack()
root.mainloop()
答案 0 :(得分:1)
您的代码中存在两个问题:
tree.insert("", tk.END, values=row)
不在for循环中,因此只有最后一行将插入到树视图中。 第二个是列#0
是一个特殊列,其值设置为text=...
,而不是values=(...)
。要正确显示数据,您至少有两种选择:
tree.insert("", tk.END, values=row)
替换为tree.insert("", tk.END, text=row[0], values=row[1:])
第二个不使用特殊列#0
,因为您将树视图用作表格,所以不需要它。创建树时,使用选项show='headings'
隐藏列#0
并创建3列:
from tkinter import ttk
import tkinter as tk
import sqlite3
def connect():
conn = sqlite3.connect("TRIAL.db")
cur = conn.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS profile(id INTEGER PRIMARY KEY, First TEXT, Surname TEXT)")
conn.commit()
conn.close()
def View():
conn = sqlite3.connect("TRIAL.db")
cur = conn.cursor()
cur.execute("SELECT * FROM profile")
rows = cur.fetchall()
for row in rows:
print(row) # it print all records in the database
tree.insert("", tk.END, values=row)
conn.close()
connect() # this to create the db
root = tk.Tk()
root.geometry("400x400")
tree= ttk.Treeview(root, column=("column1", "column2", "column3"), show='headings')
tree.heading("#1", text="NUMBER")
tree.heading("#2", text="FIRST NAME")
tree.heading("#3", text="SURNAME")
tree.pack()
b2 = tk.Button(text="view data", command=View)
b2.pack()
root.mainloop()