Pablo Simon DiEstefano's questions

Good morning companions.

I put you in situation. I have, in a form made in vb, a DatagridView that I fill from a query on a database, so far so good.

This is the Grid:

When I mark the Checks that I want, I have 2 ways to save, by pressing the button where it says Save or by pressing the small button on the top left. The first is a Button and the second is a ToolStripButton within a ToolStripMenu.

If I press the save button, it collects all the clicked checkboxes and makes the insertion in my database. If I press the tiny button, it doesn't pick up the last check I pressed, whatever the line, so it doesn't generate the expected result.

And the big mystery, the code for both buttons is exactly the same!

This is how I collect the values ​​of the grid checkboxes:

For Each row As DataGridViewRow In grdItems.Rows
        
        Dim bool1 As Boolean
        Dim bool2 As Boolean
        Dim bool3 As Boolean
        Dim bool4 As Boolean
        Dim bool5 As Boolean

        bool1 = Boolean.Parse(row.Cells(4).Value.ToString)
        bool2 = Boolean.Parse(row.Cells(5).Value.ToString)
        bool3 = Boolean.Parse(row.Cells(6).Value.ToString)
        bool4 = Boolean.Parse(row.Cells(7).Value.ToString)
        bool5 = Boolean.Parse(row.Cells(8).Value.ToString)
        ...
Next

As I said, both buttons execute the exact same code and I don't give because they behave differently.

All the best.

I am making an App in Ionic.

At one point in the App I need to press a button and close the current page I am on.

I do it in the following way:

• This is how I declare the button in the HTML view:

<button ion-button full (click)="guardarNuevoPerfil()">Guardar Perfil</button>

and this is the saveNewProfile() method of the Typescript part:

this.storage.get('listadoPerfiles').then((perfiles) => {
    //Aquí guardo el perfil, justo despues necesito cerrar la página actual

    window.close();  //No funciona
    self.close();    //No funciona
});

As you can see in the code, I've tried window.close() and seslf.close() but it doesn't do anything, it doesn't close the tab.

This is the behavior I want to have:

I have searched in google and nothing has come up, practically everything that comes out in for Javascript.

I am trying to use a TCP connected socket in my Ionic 3 app.

To do this I follow the following steps:

1- I create an ionic app:

ionic start testTcp blank --cordova

2- I enter the application directory

cd testtcp

3- I install ionic-native (when creating the project I think it already includes it but I still install it again)

npm install ionic-native --save

4- I download the following plugin to install it from local instead of installing it from the repository, the downloaded plugin is the following: https://github.com/KoenLav/cordova-plugin-chrome-apps-sockets-tcp

5- I install the plugin in my application:

ionic cordova plugin add cordova-plugin-chrome-apps-sockets-tcp-master

So far everything is going well, if I look at the plugins that I have installed with the following command: ionic cordova plugin lsit tells me that I have the plugin "cordova-plugin-..." installed, which is the one that I just installed.

The problem comes when using this plugin, when creating a socket and connecting to a host.

How do I use this plugin? Do I have to do an import in the home.ts file? How would this import?

Being an own plugin I don't see how to do it and I can't find documentation.

I've tried the tool plugmanbut it won't even let me install the plugin.

I am doing a test with ionic in which I make an http request to a service.

This service doesn't have CORS implemented, so I have to create a proxy to avoid this (this is what I've been told, I think so).

My app is very simple, I just want to make the http request that I said before.

To make my app I have done what is indicated on this website: https://reviblog.net/2017/06/19/tutorial-de-ionic-comunicaciones-http-api-rest/

In this example, a request is made to a website that has CORS implemented, with which the request does not cause problems, but when it is made on my server, it gives the following error:

"Origin http://localhost:8100 not found in Access-Control-Allow-Origin header"

To fix this I have tried the following link: https://stackoverflow.com/questions/37172928/angular-cli-server-how-to-proxy-api-requests-to-another-server/39715785

According to this answer I have left my packaje.json file as follows:

{
  "name": "pruebahttp1",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "private": true,
  "scripts": {
    "clean": "ionic-app-scripts clean",
    "build": "ionic-app-scripts build",
    "lint": "ionic-app-scripts lint",
    "ionic:build": "ionic-app-scripts build",
    "ionic:serve": "ionic-app-scripts serve",
    "start": "ng serve --proxy-config proxy.conf.json" <--Esto es lo que he añadido
  },
  "dependencies": {
    "@angular/common": "5.0.3",
    "@angular/compiler": "5.0.3",
    "@angular/compiler-cli": "5.0.3",
    "@angular/core": "5.0.3",
    "@angular/forms": "5.0.3",
    "@angular/http": "5.0.3",
    "@angular/platform-browser": "5.0.3",
    "@angular/platform-browser-dynamic": "5.0.3",
    "@ionic-native/core": "4.4.0",
    "@ionic-native/splash-screen": "4.4.0",
    "@ionic-native/status-bar": "4.4.0",
    "@ionic/pro": "1.0.20",
    "@ionic/storage": "2.1.3",
    "ionic-angular": "3.9.2",
    "ionicons": "3.0.0",
   "rxjs": "5.5.2",
    "sw-toolbox": "3.6.0",
    "zone.js": "0.8.18"
  },
  "devDependencies": {
    "@ionic/app-scripts": "3.1.8",
    "typescript": "2.4.2"
  },
  "description": "An Ionic project"
}

And I have created the proxy.config.json file like this:

{
"/api": {
    "target": "http://195.235.55.21:50072",
    "secure": false
}
}

{
"/angular": {
 "target":  {
   "host": "195.235.55.21",
   "protocol": "http:",
   "port": 50072
 },
 "secure": false,
 "changeOrigin": true,
 "logLevel": "info"
 }
}

To run the app until now I used ionic serve -l but now it tells me that I have to use the npm start command and when I use it it doesn't run the app and tells me the following:

ng serve --proxy-config proxy.conf.json

As a forewarning, we are moving the CLI npm package to "@angular/cli" with the next release, which will only support Node 6.9 and greater. This package will be officially deprecated shortly after.

To disable this warning use "ng set --global warnings.packageDeprecation=false". You have to be inside an angular-cli project in order to use the serve command. npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] start: ng serve --proxy-config proxy.conf.jsonnpm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR!
C:\Users\User\AppData\Roaming\npm-cache_logs\2018-03-12T11_26_14_674Z-debug.log

Any ideas to fix it? Thank you

I create a DataGridView with a CheckBox column so I can check one or the other row.

As data source of the DataGridView I pass a list of strings. When passing the list, I expected to get a datagridview that would show me as the first column, a checkbox column and the second column the strings of the list, but no, instead of the strings it shows me its length:

In the Length column I should (or would like) to display the strings passed through the list and not their length.

The way to generate the "Selection" column is as follows:

DataGridViewCheckBoxColumn column = new DataGridViewCheckBoxColumn();
column.HeaderText = "Seleccion";
column.Name = "Seleccion";
column.TrueValue = true;
column.FalseValue = false;
column.IndeterminateValue = false;
column.ThreeState = false;
column.ValueType = typeof(Boolean);

dgRemotas.Columns.Add(column);

and to add the string list I do the following:

dgRemotas.DataSource = list;

list is defined as:

public List<string> list;

How can I display strings instead of their length?

I am using LineChart to be able to generate a graph and represent certain values.

I get this graph from the following library: com.github.PhilJay:MPAndroidChart:v3.0.0-beta1

My problem comes when it comes to seeing the points drawn on the graph since it shows me said points with 3 decimal places and the values ​​that I give it are with 0, 1 or 2 decimal places, never with 3.

For example, if I enter 1.2 on the graph it shows me 1,200.

As you can see, all the values ​​are shown to me with 3 decimal places.

The way I generate the points is as follows:

entries.add(new Entry((float) listaFechasOrig[listaDatos.length - 1 - i].getTime(), Float.parseFloat(datoOrigRecortado.replace(",","."))));

There, the values ​​are passed correctly (with the desired decimal places).

The marker I use is a custom one that inherits from the MarkerView, this is the code but this is not where it rounds it off.

public class CustomMarkerView extends MarkerView {

private TextView tvContent;
private Context cont;

public CustomMarkerView (Context context, int layoutResource) {
    super(context, layoutResource);
    // this markerview only displays a textview
    tvContent = (TextView) findViewById(R.id.tvContent);
    cont = context;

}

// callbacks everytime the MarkerView is redrawn, can be used to update the
// content (user-interface)
@Override
public void refreshContent(Entry e, Highlight highlight) {
    Date d = new Date((long)e.getX());
    String fecha = d.toString().substring(0,20);

    fecha = fecha.replace("Jan", "Ene");
    fecha = fecha.replace("Apr", "Abr");
    fecha = fecha.replace("Aug", "Ago");
    fecha = fecha.replace("Dec", "Dic");

    fecha = fecha.replace("Mon", "Lunes");
    fecha = fecha.replace("Tue", "Martes");
    fecha = fecha.replace("Wed", "Miércoles");
    fecha = fecha.replace("Thu", "Jueves");
    fecha = fecha.replace("Fri", "Viernes");
    fecha = fecha.replace("Sat", "Sábado");
    fecha = fecha.replace("Sun", "Domingo");

    try
    {
        Tab1Prueba.rellenaDatos(fecha, e.getY()+"");
    }catch(Exception exc)
    {}

    try
    {
        Tab1Gra.rellenaDatos(fecha, e.getY()+"");
    }catch(Exception exc)
    {}
}

@Override
public int getXOffset(float xpos) {
    // this will center the marker-view horizontally
    return -(getWidth() / 2);
}

@Override
public int getYOffset(float ypos) {
    // this will cause the marker-view to be above the selected value
    return -getHeight();
}
}

I thought it was a property of the Marker but I haven't put anything on it (I don't know if it comes from the class I inherited) or some attribute of the graph must be changed and not of the marker.

Thanks.

I am making a ViewPager that contains 3 fragments.

Each fragment, upon startup, has to make an asynchronous call to retrieve certain data through a database query.

It does these calls well, the problem is that, once in this activity, if I pass from the left fragment to the central fragment, it makes the asynchronous call from the right fragment and if I pass from the right fragment to the central fragment, it makes the call async from the left fragment. I don't know if it's a context problem, since to do certain things I need to call the context (in the 3 fragments I have to use the context) and I get it by calling getContext().

This is how I load the fragments into the ViewPager:

public class LoraPrincipalSlideActivity extends FragmentActivity {

ViewPager pager = null;
MyFragmentPagerAdapter pagerAdapter;


@Override
protected void onCreate(Bundle arg0) {

    arg0 = getIntent().getExtras();

    super.onCreate(arg0);

    this.setContentView(R.layout.activity_lora_principal_slide);

    this.pager = (ViewPager) this.findViewById(R.id.pager);

    MyFragmentPagerAdapter adapter = new MyFragmentPagerAdapter(getSupportFragmentManager());

    adapter.addFragment(AccionesActivityLoraFragment.newInstance(arg0));  //Añadimos el fragment de las acciones

    adapter.addFragment(LoraFragmentActivity.newInstance(arg0));          //Añadimos el fragment del lora

    adapter.addFragment(DatosFragmentActivity.newInstance(arg0));         //Añadimos el fragment de los datos

    this.pager.setAdapter(adapter);
    //this.pager.setCurrentItem(1);  //Iniciamos el ViewPager en el fragment de Lora
}

@Override
public void onBackPressed() {
    /*if (this.pager.getCurrentItem() == 0)
        super.onBackPressed();
    else
        this.pager.setCurrentItem(this.pager.getCurrentItem() - 1);
        */
    super.onBackPressed();
}

}

This is my adapter:

public class MyFragmentPagerAdapter extends FragmentPagerAdapter {

List<Fragment> fragments;

public MyFragmentPagerAdapter(FragmentManager fm) {
    super(fm);
    this.fragments = new ArrayList<Fragment>();
}

public void addFragment(Fragment fragment) {
    this.fragments.add(fragment);
}

@Override
public Fragment getItem(int arg0) {
    return this.fragments.get(arg0);
}

@Override
public int getCount() {
    return this.fragments.size();
}
}

I need to place an item below a listview.

So far I have a Linearlayout containing a spinner that sits on top of a listview. Being in a LinearLayout, it stays fixed and below it I have a Listview which moves down and up. So far it is like this:

What I want now is, to put the LinearLayout that contains the spinners so that it appears below the listview but it is not fixed as it is now, but it appears below the last element of the listview.

This is how I now have the layout of this activity:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="net.pablo.android.app.acciones_lora_activity">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/capaMedida"
    android:orientation="vertical"
    android:background="@drawable/selector_fieldset_background"
    >

    <Space
        android:layout_width="match_parent"
        android:layout_height="25dp" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerComp1"
            android:entries="@array/compuertasLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">
            </Spinner>

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerC1"
            android:entries="@array/accionesMedidaLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">

        </Spinner>

    </LinearLayout>



    <Space
        android:layout_width="match_parent"
        android:layout_height="5dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerComp2"
            android:entries="@array/compuertasLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">
            </Spinner>

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerC2"
            android:entries="@array/accionesMedidaLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">

        </Spinner>

    </LinearLayout>

    <Space
        android:layout_width="match_parent"
        android:layout_height="5dp" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerComp3"
            android:entries="@array/compuertasLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">
            </Spinner>

        <Spinner
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/spinnerC3"
            android:entries="@array/accionesMedidaLora"
            android:spinnerStyle="@android:style/Widget.Spinner.DropDown">

        </Spinner>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btn_accionesMedida"
            android:text="Enviar accion"/>

        <android.support.v4.widget.Space
            android:layout_width="5dp"
            android:layout_height="10dp"
            android:id="@+id/espacio"
            android:layout_below="@+id/btn_accionesMedida"/>

    </LinearLayout>
</LinearLayout>

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:background="@drawable/selector_fieldset_background"
    android:paddingLeft="20dp"
    android:paddingRight="20dp"
    android:text="Acciones a medida"
    android:textAppearance="?android:attr/textAppearance"/>

<ListView
    android:id="@+id/mi_lista"
    android:layout_below="@+id/capaMedida"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

</RelativeLayout>

I load a DataGridView via a list.

datagridview.DataSource = listaVariables;

This DatagridView is made up of a column (the first) that is of the DataGridViewCheckBoxCell type.

What I want to do is that, depending on a property of the list variables, it is activated as checked or not.

I have tried to do this:

datagridview.Rows[pos].Cell[0].Value = true; //pos es un entero que utilizo para recorrer las filas y pongo 0 en Cell porque es la primera columna la que tiene los CheckBox

and it does nothing, it leaves it unchecked.

I have also tried to create a cell of type DataGridViewCheckBoxCell by setting it to true but it doesn't work either, it gives me a cell format error (System.FormatException: The formatted value of the cell has a wrong type):

DataGridViewCheckBoxCell dC = new DataGridViewCheckBoxCell(true);
datagridview.Rows[pos].Cell[0] = dC;

In this last test, I believe that the cell that I create (although it does not let me assign it) that would not set the checkbox that contains it to true either.

I have also tried to do:

dataGridView.Rows[pos].SetValues(true); //Se supone que la primera celda de la fila la debería poner a true y no lo hace

Y

var values = new bool[] { true };
dataGridView.Rows[pos].SetValues(values);

and I continue with the same result, it does not show me the activated checkbox.

The list with which I load the datagrid I define it like this:

List<PlacaVariableP> listaVariables;

The Variable object is as follows:

public class PlacaVariableP:IComparable
{
    public virtual long id_placavariable { get; set; }
    public virtual long idplaca { get; set; }
    public virtual string descripcion { get; set; }
    public virtual string unidades { get; set; }
    public virtual string idFichero { get; set; }

    public virtual int CompareTo(object obj)
    {
        PlacaVariableP c = (PlacaVariableP)obj;
        return String.Compare(this.descripcion, c.descripcion, StringComparison.Ordinal);
    }

    public virtual void toString(object obj)
    {
        obj.ToString();
    }
}

I want to change the properties of a service that I have running on my computer from a C# application.

What I want to do is, having a service installed already, change its Startup Type properties to Automatic (delayed start) and its recovery options (the first and second errors) to restart the service.

I have seen that when doing this:

ServiceInstaller serviceInstaller = new ServiceInstaller();
serviceInstaller.StartType = ServiceStartMode.Automatic;
//serviceInstaller.DelayedAutoStart //No me deja utilizar esta propiedad para el automático retrasado 

You can tell it to set it to automatic, but not to a delayed start.

To install this service I do it with the InstallUtil utility through:

System.Diagnostics.ProcessStartInfo("InstallUtil ...");

I need to know how to find out what connections I have established, something similar to what netstat does.

I just have to get the listing in an array or in a list to check that the one I'm interested in is open, but I don't even know where to start. Any ideas? Thank you

From an Android app I create and run a service that runs in a thread and runs in the background, but completely closing the main app also kills the service.

The thread I create is declared as a Daemon but the service still "kills" me.

My idea is to leave the service running even if we close the main application, a wasap style that when you close the main program the messages continue to arrive.

Any ideas?