TextInput

[Degenerate Tech]

from kivy.app import App

from kivy.uix.label import Label

from kivy.uix.textinput import TextInput

from kivy.uix.boxlayout import BoxLayout

class Ss(BoxLayout):

def __init__(self,col_no=1,**k):

super().__init__(**k)

for __i in range(col_no):

self.__a=TextInput(multiline=0)

self.add_widget(self.__a)

class A(App):

def build(self):

self.b=BoxLayout(orientation="vertical")

for i in range(10):

self.k=Ss(col_no=10)

self.b.add_widget(self.k)

return self.b

A().run()

form above code how can i access different textinput object from A class?

[Degenerate Tech]

i want to make a spreadsheet excel like widget to save and view data ..

[Elliot Garbus]

The code below shows how to access each of the textinputs.    I have changed some of you variable names for clarity.

Setting write_tab to false allows you to tab between the text inputs.

 

 

from kivy.app import App

from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout

class Row(BoxLayout):                    # defines a row
    def __init__(self, col_no=1, **k):
        super().__init__(**k)
        for i in range(col_no):
            a = TextInput(multiline=0, write_tab=False)  # set write_tab False to tab between textinput fields
            self.add_widget(a)


class A(App):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.ss = None

    def build(self):
        self.ss = BoxLayout(orientation="vertical")
        for i in range(10):
            row = Row(col_no=10)
            self.ss.add_widget(row)
        return self.ss

    def on_start(self):
        print(f'The rows are in reverse order: {self.ss.children}')
        print(f'Each row has text inputs, also in reverse order: {self.ss.children[0].children}')
        rows = reversed(self.ss.children)
        for r,row in enumerate(rows):
            t_inputs = reversed(row.children)
            for c, t_input in enumerate(t_inputs):
                t_input.text = f'C{c}, R{r}'


A().run()

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[Degenerate Tech]

wow ...nice ,sir can i use enter key to go next text input than tab key?

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[Elliot Garbus]

can i use enter key to go next text input than tab key…

 

That is not provided by the widget, but you could write the code to do that.  If you’re going to create a spreadsheet-like object, you might consider going down the column on enter.

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[Degenerate Tech]

how to do that ?...can you give a small example please

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[Elliot Garbus]

It is quite straight forward.  When you get the on_text_validate event, set the focus on the TextInput in the next column.

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[Degenerate Tech]

i did ...........

class Row(BoxLayout):                    # defines a row

    def __init__(self, col_no=1, **k):

        super().__init__(**k)

        self.orientation="vertical"

        for i in range(col_no):

            a = TextInput(multiline=0, write_tab=0,on_text_validate=self.on_enter)  # set write_tab False to tab between textinput fields

            self.add_widget(a)

            b=a

    def on_enter(self,instance):

        print(instance)

        a=instance.get_focus_next()

        a.focus=1

        print(a)

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[Elliot Garbus]

👍

Sent from my iPhone

On Aug 15, 2020, at 9:19 PM, Degenerate Tech <sksah...@gmail.com> wrote:



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[Degenerate Tech]

see on_start() method 

for r,col in enumerate(x):

            print("hello")

            t_inputs = reversed(col.children[0].children)

            print(t_inputs)

            for c, t_input in enumerate(t_inputs):

                t_input.text = f'R{c}, C{r}'

flow of program not entering these two for loop

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[Elliot Garbus]

You consumed the iterator.  One alternative is to convert the iterator into a list.

 

def on_start(self):
    cols = reversed(self.ss.children)
    x = list(cols)
    
    for j in x:
        print(j.children[0].children)

    for r,col in enumerate(x):
        print("hello")
        t_inputs = reversed(col.children[0].children)
        print(t_inputs)
        for c, t_input in enumerate(t_inputs):
            t_input.text = f'R{c}, C{r}'

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[Degenerate Tech]

oh ..

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