Arba duok meila atsiusiu veikianti projekta.

/// ------------------------FORM1--------------------

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

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

		private void button1_Click(object sender, EventArgs e)
		{
			Form2 dlg = new Form2();

			if (dlg.ShowDialog() == DialogResult.OK)
			{
				textBox1.Text = dlg.m_sVardas;
			}
		}
	}
}

/// ----------------------------Form2 (kitam  
faile)--------------------------
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace pvz
{
	public partial class Form2 : Form
	{
		public string m_sVardas;
		public Form2()
		{
			m_sVardas = "Antanas";
			InitializeComponent();
		}

		private void button1_Click(object sender, EventArgs e)
		{
			DialogResult = DialogResult.OK;
		}
	}
}