Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
694 views
in Technique[技术] by (71.8m points)

winforms - C# Create Dynamic Buttons and onClick Dynamic EventHandlers

My program creates buttons dynamically.

private void CreateButton(string buttonName)
{

   Color[] c = { Color.Red, Color.Teal, Color.Blue, Color.WhiteSmoke };

   transbutton = new Button();
   transbutton.BackColor = c[2];
   transbutton.Text = buttonName;
   transbutton.Name = buttonName + "Button";
   transbutton.Width = 150;
   transbutton.Height = 150;
   transbutton.Font = new Font("Segoe UI", 13);
   transbutton.ForeColor = Color.White;

   transbutton.Click += new EventHandler(transbutton_Click);
}

private void transbutton_Click(object sender, EventArgs e)
{

   tbList.Text = transbutton.Text;
}

enter image description here

What I am trying to do is when the user clicks on the button(s) it adds the name of the button into the multiline TextBox such as in the picture above. I created an EventHandler but cant figure it out how to make it work with dynamic buttons.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You have a reference to the button that was clicked right there as the sender argument. So...

private void transbutton_Click(object sender, EventArgs e)
    {
       tbList.Text += "
" + ((Button)sender).Text;
    }

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...