C#

Form1 form1 = new Form1;
Form2 form2 = new Form2;
Form3 form3 = new Form3;
...

private static void HideAll()
{
if(form1 != null && !form1.Disposed && form1.Visible)
   form1.Hide();
...
}

public static void ShowForm(int formNum)
{
HideAll();
switch(formNum)
{
  case 1:
      form1.Show();
  break;
  ...
}
}

StaticForm.ShowForm(1);//to show Form1 only

using WindowsApplication8;

public partial class Form1 : Form
    {
        WindowsApplication8.Form2 f2;
}

 private void ll_linkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
             //System.Diagnostics.Process.Start("Form2.cs");
             //f2 = new Form2();
         //f2.showDialog();   

             f2 = new WindowsApplication8.Form2();
             //f2.Activate();
             f2.Show();
            
            
        }   

mrithula8 wrote:

This is the code i used in form1.cs:
But still im not able to move to form2.cs

using System;
using WindowsApplication8;
using System.Windows.Forms;

public partial class Form1 : Form {        
  Form2 f2;

  private void ll_linkClicked(object sender, LinkLabelLinkClickedEventArgs e) {
    f2 = new Form2();
    f2.ShowDialog();
  }
} 

public partial class Form1 : Form
{
    Form2 form2;

    public Form1()
    {
        InitializeComponent();
        form2 = new Form2(this.Handle);
    }

    private void button1_Click(object sender, EventArgs e)
    {
        this.Hide();
        form2.Show();
    }
}

public partial class Form2 : Form
{
    private IntPtr friendHandle;

    public Form2(IntPtr hnd)
    {
        InitializeComponent();

        friendHandle = hnd;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        this.Hide();
        Form.FromHandle(friendHandle).Show();
    }
}

holdLine = Regex.Replace("\r(?!\n)")

string result = "";<br />
foreach(object item in ArrayList)<br />
{<br />
   result += item.ToString() + " ";<br />
}<br />
result = result.TrimEnd(new string[]{" "});

StringBuilder result = new StringBuilder();
foreach(object item in ArrayList)
{
  result.AppendLine(item.ToString());
}
String result2 = result.ToString();

StringBuilder result = new StringBuilder();
foreach(object item in ArrayList)
{
  result.Append(item.ToString() + " ");
}
String result2 = result.ToString();
result2 = result2.Remove(result2.Length-1);