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How to modify a button using its name as a variable

So I'm trying to figure out how to change a buttons text based on having the buttons name as a variable. I already know how to change a buttons text by hardcoding its name like Button1.Text = "hello";
But I want to be able to do something like storing Button1's name in a string called value and then use that string to modify the buttons text so i can use a method for several buttons instead of pasting a huge similar block of code in every buttons method, I just cant seem to figure out how. Any ideas would help.
private void Button3_Click(object sender, EventArgs e)
{
Button obj = sender as Button;
string buttonname = obj.Name;
boxfill(buttonname);
}
private void Button4_Click(object sender, EventArgs e)
{
Button obj = sender as Button;
string buttonname = obj.Name;
boxfill(buttonname);
}
private void Button5_Click(object sender, EventArgs e)
{
Button obj = sender as Button;
string buttonname = obj.Name;
boxfill(buttonname);
}
// this will send the buttons name to boxfill
private void boxfill(string value)
{
// will ideally change the button named with value's
// text to "x"
}

Show password in textbox while holding a button

I have a textbox in my WinForm and when I type the password in, its hidden because:
private void textBoxPWMain2_TextChanged(object sender, EventArgs e)
{
textBoxPWMain2.UseSystemPasswordChar = true;
}
is it possible to add here a button, and while the button is pressed, the password show normal and when I stop pressing the button, the password will hide again?

Maybe this? (Don't forget to subscribe to these events)
private void button2_MouseDown(object sender, EventArgs e)
{
textBoxPWMain2.UseSystemPasswordChar = false;
}
private void button2_MouseUp(object sender, EventArgs e)
{
textBoxPWMain2.UseSystemPasswordChar = true;
}

I have a solution now, I wanted something like a eye button, when you press it down the password shows, when you stop pressing, the password hides again.
Solution
First I added a pictureBox with Eye Icon and added this pictureBox to my password textbox and set Passwort textbox to .UseSystemPasswordChar
public Form1
{
textBoxPW.Controls.Add(pictureBoxEye);
pictureBoxEye.Location = new Point(95,0);
pictureBoxEye.BackColor = Color.Transparent;
textBoxPW.UseSystemPasswordChar = true;
//Subscribe to Event
pictureBoxPW.MouseDown += new MouseEventHandler(pictureBoxPW_MouseDown);
pictureBoxPW.MouseUp += new MouseEventHandler(pictureBoxPW_MouseUp);
}
Added the Mouse_Down/Up Event
private void pictureBoxEye_MouseDown(object sender, MouseEventArgs e)
{
textBoxPW.UseSystemPasswordChar = false;
}
private void pictureBoxEye_MouseUp(object sender, MouseEventArgs e)
{
textBoxPW.UseSystemPasswordChar = true;
}
This works fine for me! Thank you guys !!

Adding a bit change details to ispiro's answer
public void button1_MouseDown(object sender, EventArgs e)
{
textBox1.PasswordChar = '\0';
textBox1.UseSystemPasswordChar = false;
}
public void button1_MouseUp(object sender, EventArgs e)
{
textBox1.PasswordChar = '*';
textBox1.UseSystemPasswordChar = true;
}
Before:-
After :-

Is there a reason you set the UseSystemPasswordChar in the TextChanged event?
If you can set the property in the Initialize() method or in the constructor you can implement the following events for your button:
private void button1_MouseDown(object sender, MouseEventArgs e)
{
textBoxPWMain2.UseSystemPasswordChar = false;
}
private void button1_MouseUp(object sender, MouseEventArgs e)
{
textBoxPWMain2.UseSystemPasswordChar = true;
}

GlobalHotKey not firing any events

I googled around to find a way to have a GlobalHotKey on my C# Winform.
I saw this tutorial and followed it.
The issue I'm having now is that nothing is occurring once I press the designated key.(In this case, the ` key)
Here is the class I'm using
Here is the relevant code on my Form1.cs
Hotkey hk = new Hotkey();
private void Form1_Load(object sender, EventArgs e)
{
hk.KeyCode = Keys.Oemtilde;
hk.Windows = true;
hk.Pressed += hk_Pressed;
hk.Register(this);
}
private void hk_Pressed(object sender, EventArgs e)
{
MessageBox.Show("pressed");
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (hk.Registered)
{ hk.Unregister(); }
}

Because you set hk.Windows = true; which required you to press Windows+ ``, remove that line and press `, it will work

C# - creating multiple files with specific names

I've started to learn about System.IO in C# and I want to achieve something like this:
I have two buttons and one TextBox.
The first button event is supposed to use FolderBrowserDialog and let me choose a specific a folder.Then, to save its path in a variable.
The text box is supposed to get as a value the number of folders that I want to create in the choosen path.
The second button is going to create the number of folders(with different name each) written in the textbox at the first button specified path.
My buttons and textbox events so far:
...
int value;
String path;
private void button1_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
if (fbd.ShowDialog(this) == DialogResult.OK)
{
MessageBox.Show(fbd.SelectedPath);
path = folderBrowserDialog1.SelectedPath;//store selected path to variable "path"
}
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
value = Convert.ToInt32(textBox1.Text);//store the value from the textbox in variable "value"
}
private void button2_Click(object sender, EventArgs e)
{
if (!Directory.Exists(path))//if selected path exists
{
for(int i=0;i<value;i++)//trying to go through as folders as I wrote in the TextBox
{
Directory.CreateDirectory(path + "something");//is something wrong here, I guess.
}
}
}
My questions so far:
what's wrong with my code ?
how can I create each time the for(){} executes a folder with different name ?
I would appreciate any help

int value;
string path = null;
private void button1_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
if (fbd.ShowDialog(this) == DialogResult.OK)
{
MessageBox.Show(fbd.SelectedPath);
path = fbd.SelectedPath; //fbd not folderBrowserDialog1
}
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
value = Convert.ToInt32(textBox1.Text);//store the value from the textbox in variable "value"
}
private void button2_Click(object sender, EventArgs e)
{
if (path != null && Directory.Exists(path))
for(int i=0;i<value;i++)
Directory.CreateDirectory(Path.Combine(path,string.Format("SomeFolder{0}",i)));
}

how to create dynamic link labels in window form application

On clicking Go button the name given in textbox should be displayed as a link label and this should increment dynamically.
Here my code:
private void buttongo_Click(object sender, EventArgs e)
{
linkLabelName.Text = textBoxName.Text;
}

private void btnGo_Click(object sender, EventArgs e)
{
LinkLabel link = new LinkLabel();
link.Text = txtText.Text;
panTable.Controls.Add(link);
}