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How to create tab pages content dynamically in windows forms?

I am using windows form to build an app that draws the form controls based on the connected device dynamically. So I have a tab control and when the user select tab3 for instance the tab page content will be drawing based on connected device for example add two text boxes and a button. How can I do this. I would like also to know how to position those controls after they are created.
private void tabPage3_Click(object sender, EventArgs e)
{
TextBox text = new TextBox();
this.tabPage3.Controls.Add(text);
}

As you just stated, you create your Controls like in your example. Positioning is achieved by the Left and Top Properties of your freshly created control. BUT, my advise is, it will be easier to use predefined UserControls and add them dynamically, because I think you don't have nearly unlimited types of devices.
If you are curious how Visual Studio Designer is creating those code, just look up Designer.cs in InitializeComponent()

create dynamic tabs and use control of tabs in C#.net

I created one emulator for one device, so each time the user clicks on the button I am creating one new form, and each form represents new devices.
now I am looking for another option by which inside my main form I can create multiple tabs (instead of multiple forms) which has controls like button, dropdown, text box, grid view.
and the user can navigate between tabs, create a new tab dynamically, use controls inside of the tab.
any suggestion ??

Just use the TabControl on my 'main form'. and added tab pages at runtime.
tabControl1.TabPages.Add("New Tab");
placed an entire form inside a tab control ...this code will create a new instance of a form and place it in the last tab of a tab control:
frmDevice dev = new frmDevice();
dev.TopLevel = false;
dev.FormBorderStyle = FormBorderStyle.None;
dev.Parent = tabControl1.TabPages[tabControl1.TabCount - 1];
dev.Dock = DockStyle.Fill;
dev.Show();
Reference :https://www.codeproject.com/Answers/5246227/Create-dynamic-tabs-and-use-control-of-tabs-in-csh#answer1

Cloning tabs in Tab Control on button click in Winforms

so I have a Homepage on one of the TabPages on winform TabControl. I have a button, that adds a new tab using this Tabs.TabPages.Add("Homepage");
But TabPages.Add() just adds a new blank page, how would i clone my HomePage on the new tab? For instance, if my homepage has a button "Click me", when i open a new tab, I want it to have the same button "Click me" linked to the same event "ClickMe_click". Like a Chrome Tab control. I couldn't find any event or method built in for TabControl on msdn, unless i missed it.
Any help or hint or suggestion would be appreciated. Thanks.

You can't clone a tabpage so easily. One can try but the recommended way is:
Create a UserControl and add all the controls you want on your page. Make it Dock=Fill and add any code that connects the controls. You can layout as freely as you would in a form or a tabpage..
Whenever you want another page of this type, add a new tabpage and add an instance of the UserControl to its Controls collection.
Note: All controls on your UserControl by default are private. This is not really different from placing them on the tabpage directly. But now they are private members of the UC class, so your form and its code can't access them.
Looks like a problem when you're new to it. But if you look at it right, it is a good oportunity to create a leaner & cleaner interface.
Solution 1: Change the control modifiers to public as needed
Solution 2: Add properties to expose those data you really want to expose.
Also note: You can do all layout but can do so only in the UC designer. After adding to a form or tabpage there will be no embedded designer..

I do not want to redirect to other form onclick but display components within the same form in C#

I am doing my college project onclick event I do not want to open a new form but show the component in the same form by disabling the components of the previous option.
For instance, if I click on ADD button, it will open a new form with details to be added to save.
But, I want to show all those components of ADD form in the same form where click event occurs.
My design is something like, all options will be in left hand side and the result / form with component has to be displayed in the right hand side without opening a new form.

Use Panels.
The Panel Control is a container control to host a group of similar child controls. One of the major uses I have found for a Panel Control is when you need to show and hide a group of controls. Instead of show and hide individual controls, you can simply hide and show a single Panel and all child controls.
panel-in-C-Sharp
working-multiple-panels-c-sharp

Use Panel Control
Add multiple panels one over the other, like a stack.
Either use:
panel1.Visible=false ; panel2.Visible=true on button click
panel1.Enabled=false ; panel2.Enabled=true on button click
according to your design
Refer this video: link‎

TabControl - Loading Default UI Elements in New Tab

I have a TabControl in my application but I want to allow the user to create a new tab, but when the new tab is created it contains some default form controls. All new tabs created will contain the same basic form controls per tab (think NotePad++ where each new tab has a text editor within it).
Is there some sort of design pattern or template I can use so that when a new tab is created it will contain the necessary form controls required by my application?
Just to convey some meaning a little more:
User clicks "New Tab"
New tab is loaded with a text editor and a tree view
User clicks "New Tab" again
New tab is loaded with a text editor and a tree view
... and the processes repeats for any number of tabs that the user requires.

Like the comments suggest you should create a UserControl, lets say you call it TextEditorControl. Then you can add tab pages on a button click using the following method
private void AddTabPage()
{
// Add new tab page and dock fill.
TabPage tab = new TabPage(Path.GetFileName(fullPath));
TextEditorControl editor = new TextEditorControl();
editor.Dock = System.Windows.Forms.DockStyle.Fill;
// Add the new tab to the tab control.
tab.Controls.Add(editor);
fileTabs.Controls.Add(tab);
fileTabs.SelectedTab = tab;
}
I hope this helps.