parent-child

Closing Child (popup window) when Parent window is closed

由 霸气de小男生 提交于 2021-02-08 05:22:18
问题 I have a simple sample page that I'm working on with a popup child popup window when you click on a link. I've been trying various unload events to close the child window when the parent is closed but cannot seem to figure out what I'm missing that ties into the simple coding. The popup works flawlessly, however closing the parent window leaves the popup open. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns=

Create new processes and expect output

由 拜拜、爱过 提交于 2021-02-08 03:52:03
问题 I am writing a program that will eventually be used to have one child process send randomly generated characters through a pipe to another child process to convert to uppercase values and output, but before I get that far, I am trying to create the child processes and make some expected output. I have written the following application: #include <stdio.h> /* printf, stderr, fprintf */ #include <sys/types.h> /* pid_t */ #include <unistd.h> /* fork */ #include <stdlib.h> /* _exit */ #include

Create new processes and expect output

由 梦想的初衷 提交于 2021-02-08 03:49:37
问题 I am writing a program that will eventually be used to have one child process send randomly generated characters through a pipe to another child process to convert to uppercase values and output, but before I get that far, I am trying to create the child processes and make some expected output. I have written the following application: #include <stdio.h> /* printf, stderr, fprintf */ #include <sys/types.h> /* pid_t */ #include <unistd.h> /* fork */ #include <stdlib.h> /* _exit */ #include

Create new processes and expect output

由 江枫思渺然 提交于 2021-02-08 03:48:51
问题 I am writing a program that will eventually be used to have one child process send randomly generated characters through a pipe to another child process to convert to uppercase values and output, but before I get that far, I am trying to create the child processes and make some expected output. I have written the following application: #include <stdio.h> /* printf, stderr, fprintf */ #include <sys/types.h> /* pid_t */ #include <unistd.h> /* fork */ #include <stdlib.h> /* _exit */ #include

react js set state from parent to child component

由 社会主义新天地 提交于 2021-02-08 03:28:26
问题 So I have a parent and children component. Parent passes whatever is typed in the search bar as a prop to the children. then the api fetch should be executed, I see the fetch object in the console. I'm having difficulties setting the children state from the parent. Any tips would be appreciated, thank you and happing coding :D class HelloComponent extends React.Component { render () { return <h1>Github API repositories </h1>; } } class Parent extends React.Component { constructor (props) {

wait command wont wait for child process to finish c cpp c++

由 喜欢而已 提交于 2021-02-07 21:22:50
问题 I am trying to write a c++ program that creates a child process, runs a command and pipes the output back to the input of a command the parent is running. I have the parent execute the wait(NULL) or wait((void*)pid) command but it does not wait. here is the code: #include <string.h> #include <fstream> #include <iostream> #include <unistd.h> #include <stdio.h> #include <sys/wait.h> using namespace std; int main(int argc, char * argv[]) { char* commands[strlen(argv[1])]; char *command = NULL;

Angular Reactive Forms in Reusable Child Components: Problem with FormArrays: `formGroupName` must be used with a parent formGroup directive

由 馋奶兔 提交于 2021-02-06 14:01:02
问题 I'am trying to describe the problem on an example (full example on stackblitz) If I try to place some parts of reactive-form in the form of simple "formControls" or "formGroups" withing child-components, there are no problems. (See the example on stackblitz above). FormGroupDirective works as expected. But If I try to place a FormArray within a child-component, I get troubles because of: <div [formGroupName]="i"> <!-- Error: formGroupName must be used with a parent formGroup directive. -->

Angular Reactive Forms in Reusable Child Components: Problem with FormArrays: `formGroupName` must be used with a parent formGroup directive

由 核能气质少年 提交于 2021-02-06 13:50:52
问题 I'am trying to describe the problem on an example (full example on stackblitz) If I try to place some parts of reactive-form in the form of simple "formControls" or "formGroups" withing child-components, there are no problems. (See the example on stackblitz above). FormGroupDirective works as expected. But If I try to place a FormArray within a child-component, I get troubles because of: <div [formGroupName]="i"> <!-- Error: formGroupName must be used with a parent formGroup directive. -->

jquery fadeout current div, find next div and fade in or find last and fade in

由 折月煮酒 提交于 2021-02-04 21:40:41
问题 I have div class called .stage which is a stage of a questionnaire <div class="stage"> <div class="next">Next</div> </div> <div class="stage"> <div class="back">Back</div> <div class="next">Next</div> </div> <div class="stage"> <div class="back">Back</div> <div class="next">Next</div> </div> <div class="stage"> <div class="back">Back</div> </div> I am trying to write some compact jQuery that if you select next it closes the current stage and opens the next stage or if you click back it closes

Hibernate: Delete all children with one query

由 时间秒杀一切 提交于 2021-02-02 08:56:38
问题 TL;DR: Is it possible to configure Hibernate to delete all child objects using a single delete query? Full Question: I have the following parent/child association defined in Hibernate 5.1: public class Parent { @OneToMany(fetch = FetchType.EAGER, mappedBy = "parent", cascade = CascadeType.REMOVE) private List<Child> children; } public class Child { @ManyToOne(fetch = FetchType.EAGER) @JoinColumn(name = "parent_id", nullable = false) private Parent parent; } When I delete the parent object,
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