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C# add buttons to flow control without stealing focus

In my application I dynamically create buttons and add them to a flow control that is later cleared. I have this on a timer to refresh every X seconds to clear then add buttons. This is all being done on the main form.
The problem is when I have a child form launched the main form will steal focus every time the controls are added to the flow control.
Here is the code I have that dynamically clears and adds the controls on the main form.
I call this before adding the controls
flw_users.Controls.Clear();
This is what I call to dynamically create/add the buttons to the flow control.
private void DisplayNewMobileUser(string MobileUserName)
{
// Set Button properties
Button button = new Button();
button.Text = MobileUserName;
button.Size = new System.Drawing.Size(171, 28);
button.Name = MobileUserName;
button.BackColor = System.Drawing.Color.White;
button.FlatAppearance.BorderColor = System.Drawing.Color.White;
button.Font = new System.Drawing.Font("Segoe UI", 12F, System.Drawing.FontStyle.Bold);
button.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
button.ForeColor = System.Drawing.Color.Black;
button.Margin = new System.Windows.Forms.Padding(0, 1, 0, 1);
button.TextAlign = System.Drawing.ContentAlignment.TopLeft;
button.Click += new EventHandler(MobileUserName_OnClick);
flw_users.Controls.Add(button);
}
Is there a way to add buttons to a flow control with out it always stealing focus ?

Thanks to LarsTech I researched how to properly dispose each control added to flw_users. The main issues was fixed by changing the OnClick event to change focus to a label, which in turn didn't cause the main form to gain topmost every time the controls were cleared and re added. So everytime I clicked a button that button still had focus while the new form appeared.
Thanks everyone !
Here is the code I used to properly clear the controls
private void ClearUsers()
{
List<Control> ctrls = new List<Control>();
foreach (Control c in flw_users.Controls)
{
ctrls.Add(c);
}
flw_users.Controls.Clear();
foreach (Control c in ctrls)
{
c.Dispose();
}
}

How to hide/show button and change size form C#

I have a form with a simple calculator with the size 245 x 359.
I currently have a show/hide button for scientific functions.
I want to be able to click a button and have it show the scientific functions.
With the button size 300 x 400.

In your button click event you can do the following:
this.Size = new Size(300,400);

In the designer, just make these buttons, but then drag it's size to how you want it before the specific button is pressed.
Add a event handler for the button you want, then do this:
bool buttonPressed = false;
private void onChangeSizeButton_pressed(EventArgs e, object o)
{
if (buttonPressed)
{
this.Size = new Size(this.Size.Width, DEFAULT HEIGHT HERE);
buttonPressed = false;
}
else
{
this.Size = new Size(this.Size.Width, NEW HEIGHT HERE);
buttonPressed = true;
}
}

In your button click event, set each scentific function to:
btnMC.Visbile = true;
btnMC.Size = new Size(300, 400);
btnMR.Visbile = true;
btnMR.Size = new Size(300, 400);
ect...
That should do the trick. You might want to considered resizing your form when they click the button as well.

In your example, do not need to hide and show button but only need to change text.
Add Fix button on panel or user control and change the text. If require then user Button.Visible = false and true. Share your sample code for work on it.

Close dynamically created form with dynamic button

I'm trying to close a dynamically created form with a dynamic button (this is the simplest of my jobs, I am also adding other buttons to do other jobs but I figured this is a good place to start).
As of now I can create the form, button and the click event for that button, but I don't know what to add within the click event function to close the host of that button. I am guessing I can somehow access the buttons parent through the click function? Or maybe pass the form control as an argument in the function? Any help is appreciated!
//Create form
Snapshot snapshot = new Snapshot();
snapshot.StartPosition = FormStartPosition.CenterParent;
//Create save button
Button saveButton = new Button();
saveButton.Text = "Save Screenshot";
saveButton.Location = new Point(snapshot.Width - 100, snapshot.Height - 130);
saveButton.Click += new EventHandler(saveButton_buttonClick);
//Create exit button
Button exitButton = new Button();
exitButton.Text = "Exit";
exitButton.Location = new Point(snapshot.Width - 100, snapshot.Height - 100);
//Add all the controls and open the form
snapshot.Controls.Add(saveButton);
snapshot.Controls.Add(exitButton);
snapshot.ShowDialog();
And my click event function looks pretty much normal:
void saveButton_buttonClick(object sender, EventArgs e)
{
}
Unfortunately I don't know what to add for the function to work! Thanks in advance for any help someone can give me! I feel like this should be a straight-forward problem to solve but I haven't been able to figure it out...

While it's certainly possible to do this with a named function, it's generally simpler to just use an anonymous function in cases like this:
Snapshot snapshot = new Snapshot();
snapshot.StartPosition = FormStartPosition.CenterParent;
//Create save button
Button saveButton = new Button();
saveButton.Text = "Save Screenshot";
saveButton.Location = new Point(snapshot.Width - 100, snapshot.Height - 130);
saveButton.Click += (_,args)=>
{
SaveSnapshot();
};
//Create exit button
Button exitButton = new Button();
exitButton.Text = "Exit";
exitButton.Location = new Point(snapshot.Width - 100, snapshot.Height - 100);
exitButton.Click += (_,args)=>
{
snapshot.Close();
};
//Add all the controls and open the form
snapshot.Controls.Add(saveButton);
snapshot.Controls.Add(exitButton);
snapshot.ShowDialog();

A simple way is to use a lambda method:
Button exitButton = new Button();
exitButton.Text = "Exit";
exitButton.Click += (s, e) => { shapshot.Close(); };

Get the Text of dynamically created button in C#?

I am dynamically creating buttons in C# with this logic
for (int i = 1; i <= vap; ++i)
{
newButtons[i] = new Button();
newButtons[i].BackColor = Color.Gray;
newButtons[i].Name = "Button4" + i.ToString();
newButtons[i].Click += new EventHandler(NewButtons_Click);
newButtons[i].Location = new System.Drawing.Point(width,height);
newButtons[i].Size = new System.Drawing.Size(76, 38);
tabPage5.Controls.Add(newButtons[i]);
}
This is creating a button and the click event is also working but my problem is I don't know how to get the text of the newly created button. On form load I am putting the text of button from database and this also happening correctly, but I want to know how to get the text of dynamically created buttons.

You won't be able to get the text until after you populate it from the database (careful not to try and get the text too early).
But this should work:
string buttonText = FindControl("Button41").Text;
Update
Since you want the button text from within the click event, you can access the sender object:
Button button = sender as Button;
string buttonText = button.Text;

You just have to set the Text property of the button when you add it.

Using something along the lines of...
string BtnTxt = FindControl("ExampleButton1").Text;
should work fine.
This may cause problems later on however if you are trying to pull text content of buttons in a random order.

Changing properties of controls that were added at runtime

I have a form in which several buttons are added at runtime via a 'for' method
public Form()
{
for (int i = 0 ... )
Button b = new Button()
b.text = (string) i ;
etc..
etc..
}
. now i wish to change the text property of the buttons on a certain event. How can this be accomplished? I have tried a few things but none worked.. since the buttons variables are inside the method , they are not available outside.
Thanks

The variables aren't important (although you could store them in a single List<T> field if it made things easier). The normal way to do this is to look through the Controls collection (recursively, if necessary).
foreach(Control control in someParent.Controls) {
Button btn = control as Button;
if(btn != null) {
btn.Text = "hello world";
// etc
}
}
The above assumes all the buttons were added to the same parent control; if that isn't the case, then walk recursively:
void DoSomething(Control parent) {
foreach(Control control in parent.Controls) {
Button btn = control as Button;
if(btn != null) {
btn.Text = "hello world";
// etc
}
DoSometing(control); // recurse
}
}

You can keep the reference of the button you have created ie you can either have a List with all the dynamic controls in it or if it is only one button, make the button object a class level object so that you can access it anywhere.