    tabControl1.SelectedTab = MyTab;

or
 
    tabControl1.SelectedTab = tabControl1.TabPages[&quot;tabName&quot;];

Where `tabName` is the Name of the tab you want to activate (`tabName` is NOT the text display).


You can use the method `SelectTab`.

There are 3 versions:

    public void SelectTab(int index);
    public void SelectTab(string tabPageName);
    public void SelectTab(TabPage tabPage);

There are two properties in a TabControl control that manages which tab page is selected.

[SelectedIndex][1] which offer the possibility to select it by index (an integer starting from 0 to the number of tabs you have minus one).

[SelectedTab][2] which offer the possibility to selected the tab object itself to select.

Setting either of these property will change the currently displayed tab.

Alternatively you can also use the Select method. It comes in three flavour, one where you pass the [index of the tab][3], another the [TabPage object itself][4] and [the last one][5] a string representing the tab&#39;s name.

  [1]: http://msdn.microsoft.com/en-us/library/system.windows.forms.tabcontrol.selectedindex.aspx
  [2]: http://msdn.microsoft.com/en-us/library/system.windows.forms.tabcontrol.selectedtab.aspx
  [3]: http://msdn.microsoft.com/en-us/library/cdc8ebh8.aspx
  [4]: http://msdn.microsoft.com/en-us/library/c881zk4f.aspx
  [5]: http://msdn.microsoft.com/en-us/library/sbt9db4b.aspx

For  Windows  Smart device   (compact frame  work ) (MC75-Motorola  devices)

         mytabControl.SelectedIndex = 1

Use `SelectTab` like this:

    TabPage t = tabControl1.TabPages[2];
    tabControl1.SelectTab(t); //go to tab

Use `SelectedTab` like this:

    TabPage t = tabControl1.TabPages[2];
    tabControl1.SelectedTab = t; //go to tab


Does anybody know how to generate a [JSON schema][1] from a existing XML schema (XSD file)?
Are there any tools available for this?



  [1]: http://json-schema.org/

Generate Json schema from XML schema (XSD)

I used &#39;change directory&#39; in my shell script (bash)

    #!/bin/bash
    alias mycd=&#39;cd some_place&#39;
    mycd
    pwd

`pwd` prints `some_place` correctly, but after the script finished my current working directory doesn&#39;t change.

Is it possible to change my path by script?


How to run &#39;cd&#39; in shell script and stay there after script finishes?

I am using TabControl in #.NET application. By default first tab page of TabControl is showing in form loading. I want to activate/show other tab pages in form loading. Programmatically, how can I show other tab page?

Activate tabpage of TabControl

<p>I am using TabControl in #.NET application. By default first tab page of TabControl is showing in form loading. I want to activate/show other tab pages in form loading. Programmatically, how can I show other tab page?</p>


i have this code:

      List&lt;T&gt; apps = getApps();

            List&lt;int&gt; ids;

            List&lt;SelectListItem&gt; dropdown = apps.ConvertAll(c =&gt; new SelectListItem
            {
                Selected = ids.Contains(c.Id),
                Text = c.Name,
                Value = c.Id.ToString()
            }).ToList();


    ids.Contains

seems to always return false even though the numbers do match


any ideas?

find if an integer exists in a list of integers

The following simple LINQ code 

    string[] words = { &quot;hello&quot;, &quot;wonderful&quot;, &quot;linq&quot;, &quot;beautiful&quot;, &quot;world&quot; };

    // Get only short words
    var shortWords =
      from word in words
      where word.Length &lt;= 5
      select word;

    // Print each word out
    shortWords.Dump();

can be translated into python using list comprehension as follows.

    words = [&quot;hello&quot;, &quot;wonderful&quot;, &quot;linq&quot;, &quot;beautiful&quot;, &quot;world&quot;]
    shortWords = [x for x in words if len(x) &lt;=5]
    print shortWords

 * Is LINQ just another idea to implement list comprehension?
 * What examples might be that LINQ can do but list comprehension can&#39;t do.

Python&#39;s list comprehension vs .NET LINQ

I would like to receive a **list sorted** by &#39;Product.Name&#39; in **descending order**. 

Similar to the function below which sorts the list in ascending order, just in reverse, is this possible?

    var newList = list.OrderBy(x =&gt; x.Product.Name).ToList();



C# list.Orderby descending

Usually we do something like a for or while loop with a counter:

    for (int i = 0; i &lt; 10; i++)
    {
        list.Add(GetRandomItem());
    }

but sometimes you mix up with boundaries. You could use a while loop instead, but if you make a mistake this loop is infinite...

In Perl for example I would use the more obvious

    for(1..10){
        list-&gt;add(getRandomItem());
    }

Is there something like `doitXtimes(10){...}`?

Is there a shorter/simpler version of the for loop to anything x times?

    public class ClassA
    {
         public string MyString {get; set;}
    }

    public class ClassB
    {
         public List&lt;ClassA&gt; MyObjects {get; set;}
    }

    List&lt;ClassB&gt; classBList = new List&lt;ClassB&gt;();
    var results = (from i in classBList select i.MyObjects).Distinct();

I want a distinct list of all the `ClassA` objects in the `classBList`.  How do I go about this using **LINQ**? I&#39;m thinking about a nested query, but couldn&#39;t quite figure it out.  Any help is very appreciated.

Using LINQ, select list of objects inside another list of objects

I have form which is opened using ShowDialog Method. In this form i have a Button called More.
If we click on More it should open another form and it should close the current form.

on More Button&#39;s Click event Handler i have written the following code

  

    MoreActions objUI = new MoreActions (); 
    objUI.ShowDialog();
    this.Close();

But what is happening is, it&#39;s not closing the first form. So, i modified this code to 

  

    MoreActions objUI = new MoreActions (); 
    objUI.Show();
    this.Close();

Here, The second form is getting displayed and within seconds both the forms getting closed.

Can anybody please help me to fix issue.  What i need to do is, If we click on More Button, it should open another form and close the first form.

Any kind of help will be really helpful to me.

How to open a new form from another form

I&#39;m using a DataGridView with object data binding to display information about logging entities in a system, retrieved via SOAP from a remote service.
One of the columns is called &quot;Last action&quot; and means the last time the entity logged a message. It is a `System.DateTime` value. When I read the SOAP response (example below), he timestamp obviously contains all the information, up to second fractions.

    &lt;LoggingEntity&gt;
    &lt;host&gt;marty86ce&lt;/host&gt;
    &lt;process&gt;10148&lt;/process&gt;
    &lt;logger&gt;http_core&lt;/logger&gt;
    &lt;appName&gt;httpd&lt;/appName&gt;
    &lt;ffda&gt;true&lt;/ffda&gt;
    &lt;lastAction&gt;2010-10-27T12:00:19.5117509Z&lt;/lastAction&gt;
    &lt;lastHeartbeat&gt;0001-01-01T00:00:00&lt;/lastHeartbeat&gt;
    &lt;channelId&gt;em_9BA2A2B4D0B6E66&lt;/channelId&gt;
    &lt;ffdaChannelId&gt;em_E7C8D1D4DE8EEB9&lt;/ffdaChannelId&gt;
    &lt;/LoggingEntity&gt;

When I display it on the table, I instead can read up to the minutes
![http://i.stack.imgur.com/dLYBz.png][1]
I use the following code to do the data binding when I press the refresh button

    public void RefreshEntities()
    {
        IEntityManagement management = EntityPlugin.GetProxy();
        LoggingEntity[] result = management.FindLoggingEntities(new TemplateQuery { ffdaSpecified = true, ffda = true }); //Remote invocation

        Invoke(new MethodInvoker(delegate { gridEntities.DataSource = result; })); //THIS does the data binding from the array

        Invoke(new MethodInvoker(delegate { btnRefresh.Enabled = true; }));
    }

I would like to know how to control column formatting of data bound values. I think that the format dd/MM/yyyy hh:mm comes from my system&#39;s settings. **How to override formatting settings programmatically?**

Thank you in advance

Full solution code on [Subversion][2] (FFDAGui program) for the Logbus-ng open source project.


  [1]: http://i.stack.imgur.com/dLYBz.png
  [2]: http://logbus-ng.svn.sourceforge.net/viewvc/logbus-ng/trunk/


How to format DateTime columns in DataGridView?

Short question here:

In **.Net 4.0 Winforms**, how do I use the `PasswordChar` property of a `Textbox` to show a common **black dot** as a **character**? Is there perhaps some font I can use that has this as a character?

If I use &#39;`UseSystemPasswordChar = true`&#39; it shows an asterisk (*). 

Which passwordchar shows a black dot (•) in a winforms textbox?

I have a form application in C#. When I change the monitor&#39;s DPI, all the controls move.
I used the code `this.AutoScaleMode = AutoScaleMode.Dpi`, but it didn&#39;t avoid the problem.
 
Does anyone have an idea?

Creating a DPI-Aware Application

Does .NET framework have a collection of icons for use in Windows Forms or WPF application somewhere? How does one use it? For example, how do I use it as an application window icon? 

I recall, if you want to display a message box there is a choice to show different icons, I suppose there are more icons in the framework?



Does .NET have icon collections?

How to build vertical tab sets in WPF? The tabs will stack up in top-to-bottom just like the &quot;Properties&quot; of a project shown in visual studio.

How to build vertical tab sets in WPF?

Basically I have in my MainViewModel.cs:

    ObservableCollection&lt;TabItem&gt; MyTabs { get; private set; }

However, I need to somehow be able to not only create the tabs, but have the tabs content be loaded and linked to their appropriate viewmodels while maintaining MVVM.

Basically, how can I get a usercontrol to be loaded as the content of a tabitem AND have that usercontrol wired up to an appropriate viewmodel. The part that makes this difficult is the ViewModel is not supposed to construct the actual view items, right? Or can it?

Basically, would this be MVVM appropriate:

    UserControl address = new AddressControl();
    NotificationObject vm = new AddressViewModel();
    address.DataContext = vm;
    MyTabs[0] = new TabItem()
    {
        Content = address;
    }

I only ask because well, i&#39;m constructing a View (AddressControl) from within a ViewModel, which to me sounds like a MVVM no-no.

How do I bind a TabControl to a collection of ViewModels?

I am developing a  Windows Form Application with several pages.  I am using a TabControl to implement this. Instead of using the header to switch between tabs, I want my application to control this e.g.  the next tab should open after the user has filled in a text box and clicked the next button.


Hide Tab Header on C# TabControl

I am making an event to check if specific tab page in a tab control is active.

The point is, it will trigger an event if that tab page in a tab control is the currently selected tab. Any code that will give me what I need?

Check if a specific tab page is selected (active)

According to this: [sample code](https://docs.flutter.io/flutter/material/TabController-class.html)

I created my own implementation of TabController:

    void main() {
      runApp(new MyApp());
    }
    
    class MyApp extends StatefulWidget {
    
      @override
      _MyAppState createState() =&gt; new _MyAppState();
    }
    
    class _MyAppState extends State&lt;MyApp&gt; {
    
      TabController _tabController;
    
      @override
      void initState() {
        super.initState();
        _tabController = new TabController(vsync: this, length: choices.length);
      }
    
      @override
      void dispose() {
        _tabController.dispose();
        super.dispose();
      }
    
      @override
      Widget build(BuildContext context) {
        return new MaterialApp(
          home: new Scaffold(
            bottomNavigationBar: new Material(
              color: Colors.blue,
              child: new TabBar(
                controller: _tabController,
                isScrollable: false,
                tabs: choices.map((Choice choice) {
                  return new Tab(
                    text: null,
                    icon: new Icon(choice.icon),
                  );
                }).toList(),
              ),
            ),
            appBar: new AppBar(
              title: const Text(&#39;Swap&#39;),
            ),
            body: new TabBarView(
              controller: _tabController,
              children: choices.map((Choice choice) {
                return new Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: new ChoiceCard(choice: choice),
                );
              }).toList(),
            ),
          ),
        );
      }
    }

In line: `_tabController = new TabController(vsync: this, length: choices.length);` I got error this message:

&gt; error: The argument type &#39;_MyAppState&#39; can&#39;t be assigned to the parameter type &#39;TickerProvider&#39;. (argument_type_not_assignable at [swap] lib/main.dart:24)

What is wrong with my code?

Content Type	Original Author	Original Content on Stackoverflow
Question	Vyasdev Meledath	View Question on Stackoverflow
Solution 1 - C#	testalino	View Answer on Stackoverflow
Solution 2 - C#	Ivan	View Answer on Stackoverflow
Solution 3 - C#	Gimly	View Answer on Stackoverflow
Solution 4 - C#	Jerry Abraham	View Answer on Stackoverflow
Solution 5 - C#	Wedson Quintanilha da Silva	View Answer on Stackoverflow

Activate tabpage of TabControl

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

Solution 5 - C#

How to run 'cd' in shell script and stay there after script finishes?

Generate Json schema from XML schema (XSD)

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