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In general, the code is placed in the module of a sheet. This is the Worksheet_SelectionChange event, which fires each time a different cell is selected in the active sheet. You can select "Worksheet" from the first drop-down menu above the code window, and "Selection_Change" fr...

The connection between the widget and the scrollbar goes both ways. The scrollbar needs to be expanded vertically so that it has the same height as the widget. text = tk.Text(parent) text.pack(side="left") scroll_y = tk.Scrollbar(parent, orient="vertical", command=text.yview...

It has not been explained in the Tensorflow documentation how to load images and labels directly from a TXT file. The code below illustrates how I achieved it. However, it does not mean that is the best way to do it and that this way will help in further steps. For instance, I'm loading the labels ...

Online demo is here: http://ext4all.com/post/extjs-4-mvc-application-architecture.html Define a model: // /scripts/app/model/User.js Ext.define('AM.model.User', { extend: 'Ext.data.Model', fields: ['id', 'name', 'email'] }); Define a store with proxy: // /scripts/app/store/Users.js...

$ grep root /etc/passwd root:x:0:0:root:/root:/bin/bash operator:x:11:0:operator:/root:/sbin/nologin

$ egrep '^(0|1)+ [a-zA-Z]+$' searchfile.txt 011 AaBBS

$ fgrep "." .bashrc # will match lines with a dot.

Flexbox or flexible box is a layout method for arranging content on a page in a predictable manner. Flexbox provides an improvement over traditional block model positioning using floats or even table like positioning for content on the page. At its core, Flexbox can be broken down into a parent ele...

A settings variable Default_Base is set on the instance of Ada.Text_IO.Integer_IO; also, Default_Width is set so that output cannot have leading space. with Ada.Text_IO; use Ada.Text_IO; procedure Print_Hex is subtype Count is Integer range -1_000_000 .. 1_000_000; package Count_IO...

Ada.Text_IO.Editing offers formatting decimal fixed point values using “picture strings”. These describe output using “magical” characters for separators, currency signs, etc. with Ada.Text_IO.Editing; use Ada.Text_IO; procedure Print_Value is Max_Count : constant := 1_000_000; ...

A simple sports2000 example: FIND FIRST Customer NO-LOCK WHERE CustNum = 1 NO-ERROR. IF AVAILABLE Customer THEN DO: DISPLAY Customer.NAME. END. ELSE DO: MESSAGE "No record available". END. FIRST - find the first record that matches the query NO-LOCK - don't lock the r...

A DTD is referred to as an internal DTD if elements are declared within the XML files. To reference it as internal DTD, standalone attribute in XML declaration must be set to yes. An XML that describes a note that contains property to, from and message along with internal DTD will look like: <...

In external DTD elements are declared outside the XML file. They are accessed by specifying the system attributes which may be either the legal .dtd file or a valid URL. To reference it as external DTD, the standalone attribute in the XML declaration must be set as no. An XML that describes a note ...

Recommended way of production deployment calls for using Apache/Nginx for serving the static content. Thus, when DEBUG is false static and media contents fail to load. However, we can load the static content in deployment without having to setup Apache/Nginx server for our app using: python manage....

var alertResult = await DisplayAlert("Alert Title", Alert Message, null, "OK"); if(!alertResult) { //do your stuff. } Here we will get Ok click action.

Sometimes it is required to implement Enum on your own. E.g. there is no clear way to extend other enums. Custom implementation allows this: class Enum { constructor(protected value: string) {} public toString() { return String(this.value); } public is(value: Enum | string) { ...

enum SourceEnum { value1 = <any>'value1', value2 = <any>'value2' } enum AdditionToSourceEnum { value3 = <any>'value3', value4 = <any>'value4' } // we need this type for TypeScript to resolve the types correctly type TestEnumType = SourceEnum | AdditionToS...

Simple form, validation and submission functions to create a "mailing list" feature. This can then be applied to either the basic page or basic block examples. Assumes you have created a table in the drupal database called 'mailing_list' with the fields first name, last name and email ad...

Simple form, validation and submission functions to create a "mailing list" feature. This can then be applied to either the basic page or basic block examples. Assumes you have created a table in the drupal database called 'mailing_list' with the fields first name, last name and email ad...

Can be used in conjunction with the custom form example to create a table in the drupal database for a Mailing List feature. This example was made by creating the table directly in my development database, then created the data for hook_schema() using the Schema module. This allows for automatic t...