BIOS / Bootmenu

Marke: BIOS / Bootmenu:

Lenovo: F1 / F12

android debug bridge adb, shell basics Samsung

adb reboot bootloader

adb installieren und starten

entweder android Studio oder sdk installieren, adb.exe ist in
C:\Program Files (x86)\Android\android-sdk\platform-tools

adb befehle

adb devices //listet alle verbundenen geräte auf
adb shell //linux shell auf android gerät aufmachen

Adb Shell

partitionen

cat /proc/partitions
df

power shell parameter example cmdlet

<#

    .SYNOPSIS

    Upload a ConfigFile over Default Configuration

 



    .DESCRIPTION

    Uploads File with given Path over Default Configuration (is overwritten !!!)

    of a Database (default Db) of a sql SERVERINSTANCE (default localhost\sqlexpress)



    .EXAMPLE

        .\UploadConfigFile.ps1 D:\temp\Configuration.

            uploads the file Configuration. over the Default Configuration

    .EXAMPLE

        .\UploadConfigFile.ps1 D:\temp\Configuration. -ServerInstance myserver -Database db1

            uploads the file Configuration. over the Default Configuration on Database db1 of Sql Server myserver



    .PARAMETER FilePath

        mandatory, file to be uploaded over the default  configuration

    .PARAMETER Database

        optional, name of Database (default=Db)

    .PARAMETER ServerInstance

        optional, name of Sql Server Instance (default localhost/sqlexpress)







     

#>

[CmdletBinding()]

param

(

    [Parameter(Mandatory=$true)]

    [string]$FilePath,

    [string]$Database="Db",

    [string]$ServerInstance="localhost\sqlexpress"

)



$sqlCmd="exec UpdateConfigFile '$FilePath'"

Write-Debug "invoke-SqlCmd: $sqlcmd"

Invoke-Sqlcmd -ServerInstance $ServerInstance -Database $Database -Query $sqlCmd -QueryTimeout 65000

Write-Host "File uploaded over Default Configuration !"

mysql auf raspi

login von cmd:
mysql -u root -p

show databases;

c# CallerMemberName attribute gibt namen der aufrufender methode zurück

    private string HelpMe([CallerMemberName] string param = "")
    {
        return param;
    }

power shell debug verbose

dir variable:*pref*



$DebugPreference = "Continue"

 $VerbosePreference = "Continue"

Programmpfad herausfinden in shell (where in cmd oder power shell)

linux / unix: which
windows cmd: where.exe
power shell: where.exe

n powershell muß man where.exe schreiben, da where abkürzung für Where-Object ist

Getting __MigrationHistory Table

                 HistoryContext hc = new HistoryContext(myContext.Database.Connection,"dbo");
                    var migrations = hc.History.ToList();

c# temp dir: System.IO.Path.GetTempPath();

simple sql server merge for insert or update for single row

merge targetTableName as target
using (values (@Key)) as source (keyname)
on [Key]=source.keyname
when matched then
update set bla=@bla
when not matched then
insert ([key], bla)
values (@key, @bla)

Flags

      [Flags]
        public enum SettingFlags : long
        {
            /// <summary>
            /// hidden in config tool for normal users
            /// </summary>
            myflag = 0b1,
            AdvancedSetting = 0b10
        }

       [NotMapped]
        public bool AdvancedSetting
        {
            get => Flags.HasFlag(SettingFlags.AdvancedSetting);
            set => Flags=SetFlag(Flags, value, SettingFlags.AdvancedSetting);
        }

        public static SettingFlags SetFlag(SettingFlags flags, bool value, SettingFlags flag)
        {
            if (value)
                flags |= flag;
            else
                flags &= flag;
            return flags;
        }





oldschool:
        private bool GetBit(SettingFlags position)
        {
            var pos = (byte)position;
            var mask = (1 << pos);
            var bit = Flags & mask;
            return 0<bit ;
        }

        private void SetBit(bool value, SettingFlags position)
        {
            var pos = (byte) position;
            var mask = (1 << pos);
            if (value)
                Flags |= mask;
            else
                Flags &= ~mask;
        }

Useful Tools and Settings for Visual Studio

Tools -> Options:

Environment -> InternationalSettings

Language

Environment -> General

Color Theme Dark

Environment -> Fonts & Colors -> Inactive Selected Item

xaml editor better visible

Projects and Solutions –> General

Track Active Item in Solution Explorer

TextEditor -> c# -> Advanced

Outlining - Collapse #regions when collapsing to definitions

Tools:

Match Margin: 

https://marketplace.visualstudio.com/items?itemName=VisualStudioProductTeam.MatchMargin

WinForm bei Bedarf in Gui Task zurück

wichtig: Gui im Gui Thread öffnen !

        /// <summary>
        /// 1) check if correct thread, if not call in correct thread
        /// 2) sets Text of Control c
        /// </summary>
        /// <param name="c"></param>
        /// <param name="text"></param>
        public void _SetText(Control c, string text)
        {
            if (this.InvokeRequired)
                this.Invoke(new Action<Control, string>(_SetText), c, text);
            else
                c.Text = text;
        }



        public void _SetMax(int max)
        {
            if (this.InvokeRequired)
                this.Invoke(new Action<int>(_SetMax),max);
            else
                progressBar1.Maximum = max;
        }

        public void _IncProgressBar()
        {
            if (this.InvokeRequired)
                this.Invoke(new Action(_IncProgressBar));
            else
                progressBar1.Value += 1;
        }

longrunning c# Task mit Fehlerbehandlung

                var t = new Task(() => { ImportFile(tablename, conStr, ofd.FileName); },TaskCreationOptions.LongRunning);
                var nextTask = t.ContinueWith(antecedent =>
                {
                    if (antecedent.IsFaulted)
                    {
                        PLog.ShowAndLogError("SqlTools.ImportFile Error: " + antecedent?.Exception?.Message +antecedent?.Exception?.InnerException?.Message);
                    }
                    else if (antecedent.IsCanceled)
                    {
                        PLog.LogWarning("SqlTools.ImportFile Canceled: ");
                    }
                    else
                    {
                        PLog.LogInfo("SqlTools.ImportFile succeeded ! ");
                    }
                });
                t.Start();

Visual Studio aktive Datei im Solution Explorer anzeigen

Tools - Options - Projects and Solutions - Track Active Item in Solution Explorer

windows 10 prozesse

nach dem aufsetzten fall creators 35 hintergrundprozesse, 74 windows prozesse

gamil gruppen bearbeiten

In der Kontaktansicht mehrere Kontkte auswählen, dann erscheint oben ein Gruppenicon, damit kann man die Kontakte zu Gruppen hinzufügen

linux owndrive, flash

sudo apt-get install flashplugin-installer

sudo apt-get install owncloud-client

creating TPL Tasks c#

Task.Factory.StartNew(() => CalDaysAndSendMail(taskList), TaskCreationOptions.LongRunning);


Task has constructor from Action or Action

Action a = myVoidMethodWithoutParameters;
Task t = new Task(a);

kurz: var t = new Task(myVoidMethodWithoutParameters);

           Action
            Task t = new Task(a,obj);

void DoSomething(object o)

from https://www.codeproject.com/articles/189374/the-basics-of-task-parallelism-via-c:

        // use an Action delegate and named method
        Task task1 = new Task(new Action(printMessage));
        // use an anonymous delegate
        Task task2 = new Task(delegate { printMessage() });
        // use a lambda expression and a named method
        Task task3 = new Task(() => printMessage());
        // use a lambda expression and an anonymous method
        Task task4 = new Task(() => { printMessage() });:

    private static void printMessage() {
        Console.WriteLine("Hello, world!");
    }

Shortcuts

WINDOWS X, C ... Computerverwaltung
WINDOWS I ... neue Systemeinstellungs App
WINDOWS Q Cortana