CODEWITHSUNDEEP
c#winforms
Usman Ozzie Q Qadri
Usman Ozzie Q Qadri

Reputation: 31

How to Use Dynamically Created Button/textBox in C# Windows Forms?

private void createButton()
{
    flowLayoutPanel1.Controls.Clear();

    for (int i = 0; i < 4; i++)
    {    
        Button b = new Button();
        b.Name = i.ToString();
        b.Text = "Button" + i.ToString();
        flowLayoutPanel1.Controls.Add(b);
    }

}
private void button1_Click(object sender, EventArgs e)
{
    createButton();
}

I Used this code to create some buttons on runtime , now how can i use those created buttons to perform diffrent actions? Im kindz new to this so please help me , very much appreciated :)

Upvotes: 3

Views: 3050

Answers (3)

Cyril Gandon
Cyril Gandon

Reputation: 17048

When you create your button, you need to subscribe to the Click event like this :

Button b = new Button();
b.Click += new EventHandler(b_Click);
// or
b.Click += b_Click;
// or
b.Click += delegate(object sender, EventArgs e) {/* any action */});
// or
b.Click += (s, e) => { /* any action */ };

void b_Click(object sender, EventArgs e)
{
    // any action
}

This is something that is automatically done when your are is the designer in Visual Studio, and you click on a button to create the method button1_Click.
You can search in the Designer.cs of your form, you will find an equivalent line:

button1.Click += new EventHandler(button1_Click);

Related question:

Upvotes: 1

S&#233;bastien Garmier
S&#233;bastien Garmier

Reputation: 1263

b.Click += delegate(object sender, EventArgs e) {
   Button clickedButton = (Button)sender; //gets the clicked button
});

Upvotes: 1

Daniel Hilgarth
Daniel Hilgarth

Reputation: 174309

You can assign an event handler to the click event:

b.Click += SomeMethod;

SomeMethod must have the following signature:

void SomeMethod(object sender, EventArgs e)

Upvotes: 8

Related Questions