PyQT Table Add Row Data Dynamically: A Beginner Guide – PyQT Tutorial

By | December 13, 2019
2 Comments

We have known how to save data into a table in pyqt. Here is an example:

PyQT Add and Show a Table: A Beginner Guide

However, these data is not saved row by row. To address this issue, we will write an example to how to add data in pyqt table row by row in this tutorial.

Create a pyqt table

We first create a table without any data.

  1. import sys
  2. from PyQt5.QtWidgets import QApplication, QWidget,QPushButton, QHBoxLayout, QVBoxLayout
  3. from PyQt5.QtWidgets import QLineEdit
  4. from PyQt5.QtWidgets import QTableWidget,QTableWidgetItem
  5. from PyQt5 import QtCore
  6. class YuTextFrame(QWidget):
  8. def __init__(self):
  9. super().__init__()
  10. self.initUI()
  11. def initUI(self):
  12. self.setWindowTitle('PyQT Table Add Row Data Dynamically')
  13. vbox = QVBoxLayout()
  15. # add table
  16. table = QTableWidget(self)
  17. table.setColumnCount(5)
  19. table.rowCount()
  20. #set table header
  21. table.setHorizontalHeaderLabels(['id','Name','Age','Sex','Address'])
  23. #add data
  24. row_1 = ['001', 'John', 30, 'Male', 'Street No 2']
  25. row_2 = ['002', 'Lily', 32, 'Female', 'Street No 1']
  26. row_3 = ['003', 'Kate', 20, 'Male', 'Street No 3']
  27. row_4 = ['004', 'Tom', 22, 'Male', 'Street No 4']
  29. vbox.addWidget(table)
  31. self.setLayout(vbox)
  32. self.setGeometry(300,400,500,400)
  33. self.show()
  36. if __name__ == '__main__':
  38. app = QApplication(sys.argv)
  39. frame = YuTextFrame()
  40. sys.exit(app.exec_())
import sys
from PyQt5.QtWidgets import QApplication, QWidget,QPushButton, QHBoxLayout, QVBoxLayout
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QTableWidget,QTableWidgetItem
from PyQt5 import QtCore
class YuTextFrame(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self): 
        self.setWindowTitle('PyQT Table Add Row Data Dynamically')  
        vbox = QVBoxLayout()
        
        # add table 
        table = QTableWidget(self)
        table.setColumnCount(5)
        
        table.rowCount()
        #set table header
        table.setHorizontalHeaderLabels(['id','Name','Age','Sex','Address'])
    
        #add data
        row_1 = ['001', 'John', 30, 'Male', 'Street No 2']
        row_2 = ['002', 'Lily', 32, 'Female', 'Street No 1']
        row_3 = ['003', 'Kate', 20, 'Male', 'Street No 3']
        row_4 = ['004', 'Tom', 22, 'Male', 'Street No 4']
        
        vbox.addWidget(table)

        self.setLayout(vbox)
        self.setGeometry(300,400,500,400)
        self.show()


if __name__ == '__main__':

    app = QApplication(sys.argv)
    frame = YuTextFrame()
    sys.exit(app.exec_())

In code above, we only set table column is 5 and does not set the row count. Then, we will add 4 row data into this table.

You will find this table likes:

create a simple pyqt table example

Add data row by row

To add data row by row, we should change the row count dynamically.

  1. row = table.rowCount()
  2. table.setRowCount(row+1)
        row = table.rowCount()
        table.setRowCount(row+1)

Then we we can add a row data.

We will create a function to add data row by row.

  1. def addTableRow(self, table, row_data):
  2. row = table.rowCount()
  3. table.setRowCount(row+1)
  4. col = 0
  5. for item in row_data:
  6. cell = QTableWidgetItem(str(item))
  7. table.setItem(row, col, cell)
  8. col += 1
def addTableRow(self, table, row_data):
        row = table.rowCount()
        table.setRowCount(row+1)
        col = 0
        for item in row_data:
            cell = QTableWidgetItem(str(item))
            table.setItem(row, col, cell)
            col += 1

In this code, we will add a row data into pyqt table, row_data is python list which contains the value of each cell in row.

How to use addTableRow()

We can use it as follow:

  1. self.addTableRow(table, row_1)
  2. self.addTableRow(table, row_2)
  3. self.addTableRow(table, row_3)
  4. self.addTableRow(table, row_4)
        self.addTableRow(table, row_1)
        self.addTableRow(table, row_2)
        self.addTableRow(table, row_3)
        self.addTableRow(table, row_4)

Run this code, we will get effect likes:

add row data into pyqt table dynamically

2 thoughts on “PyQT Table Add Row Data Dynamically: A Beginner Guide – PyQT Tutorial”

  1. suagnthi

    Hi,

    I Wan to create the table dynamically in GUI. Can you Please help me to see the full source code for this program. when i add the function it showa error.

    Thank you

    ↓
    1. admin Post author

      The key function is:

      def addTableRow(self, table, row_data):
      row = table.rowCount()
      table.setRowCount(row+1)
      col = 0
      for item in row_data:
      cell = QTableWidgetItem(str(item))
      table.setItem(row, col, cell)
      col += 1

      where table is QTableWidget object, row_data is a list which contains data, for example:

      row_2 = ['002', 'Lily', 32, 'Female', 'Street No 1']

      addTableRow function will add a row to table.
      for item in row_data
      will add each cell in a row to the table.

      ↓

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