Multiple Controls Genaration

Naredla Nithesh

Hi friends.. I want to create a windows form in which i have a button ,when we click on this button a panel will be created.....if we click it n times ,it will create n panels......any one have idea...if you have any idea..kindly replay me with those articles(url)...please help me(in C#)

5 Replies

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Vulpes12y ago
If you're saying that the panels, and their delete buttons, are being placed on a UserControl rather than a Form, then I can't think of any obvious reason why this sort of code shouldn't still work.

Are you saying that the delete button is deleting the whole UserControl and not just it's associated panel?
Naredla Nithesh12y ago
in my application i use those button and container control as a user control.and i consume that from another application , from that another application when i click on delete button ..it will delete that control .....
Vulpes12y ago
In that case, I'd do things slightly differently:

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private List panels = new List();
private int side = 45;

private void button1_Click(object sender, EventArgs e)
{
int numPanels = panels.Count;
int row = numPanels / 6;
int col = numPanels % 6;
Panel p = new Panel();
p.Location = new Point(col * side, row * side);
p.BorderStyle = BorderStyle.FixedSingle;
p.Size = new Size(side, side);
Button b = new Button();
b.Text = "X";
b.Size = new Size(side / 2, side / 2);
b.Click += deleteButton_Click;
p.Controls.Add(b);
this.Controls.Add(p);
panels.Add(p);
if (panels.Count == 30) button1.Enabled = false;
}

private void deleteButton_Click(object sender, EventArgs e)
{
Button b = (Button)sender;
Panel p = (Panel)b.Parent;
int index = panels.IndexOf(p);
this.Controls.Remove(p);
panels.RemoveAt(index);
for (int i = index; i < panels.Count; i++)
{
int row = i / 6;
int col = i % 6;
panels[i].Location = new Point(col * side, row * side);
panels[i].Size = new Size(side, side);
}
if(!button1.Enabled) button1.Enabled = true;
}
}
Naredla Nithesh12y ago
Thank You boss..it some what help me..but my Panel have a Delete button ,if i click it that panel will deleted from list and remaining all panel repositioned from top to bottom and their stating location adjust according to sequence..that is the main issue in my task
Vulpes12y ago
Well, the main problem here is to position the panels so they don't overlap.

As a 'rough and ready' demo, try this code which places up to 30 small panels, side by side, in a 5 x 6 matrix on a default 300 x 300 form. The button should be placed at the bottom of the form:

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private int numPanels = 0;

private void button1_Click(object sender, EventArgs e)
{
int row = numPanels / 6;
int col = numPanels % 6;
int side = 45;
numPanels++;
Panel p = new Panel();
p.Name = "panel" + numPanels;
p.Location = new Point(col * side, row * side);
p.BorderStyle = BorderStyle.FixedSingle;
p.Size = new Size(side, side);
this.Controls.Add(p);
if (numPanels == 30) button1.Enabled = false;
}
}