Ajustar la posición y tamaño de los controles automáticamente con Anchor
(código en c#)

Actualizado: 01/Abr/2001

/******************************************************************************
 *  Prueba de aplicación realizada con c#
 * 
 * Autor: Guillermo 'guille' Som
 * Fecha: 02/Abr/2001
 * 
 *****************************************************************************/

namespace csWinApp1
{
	using System;
	using System.Drawing;
	using System.Collections;
	using System.ComponentModel;
	using System.Windows.Forms;
	using System.Data;

	/// <summary>
	///		Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnExit;
		private System.Windows.Forms.TextBox txtFileName;
		private System.Windows.Forms.ListBox lstLines;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button btnBrowse;
		private System.Windows.Forms.OpenFileDialog openFD;
		private System.Windows.Forms.Button btnOpen;
		/// <summary>
		///		Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//

			this.txtFileName.Text="";
			// Añadir scroll horizontal al ListBox
			this.lstLines.HorizontalScrollbar=true;
		}

		/// <summary>
		///		Clean up any resources being used.
		/// </summary>
		public override void Dispose()
		{
			base.Dispose();
			if(components != null)
				components.Dispose();
		}

		#region Windows Form Designer generated code
		/// <summary>
		///		Required method for Designer support - do not modify
		///		the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.lstLines = new System.Windows.Forms.ListBox();
			this.openFD = new System.Windows.Forms.OpenFileDialog();
			this.btnOpen = new System.Windows.Forms.Button();
			this.btnExit = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.btnBrowse = new System.Windows.Forms.Button();
			this.txtFileName = new System.Windows.Forms.TextBox();
			this.lstLines.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
				| System.Windows.Forms.AnchorStyles.Left)
				| System.Windows.Forms.AnchorStyles.Right);
			this.lstLines.Font = new System.Drawing.Font("Courier New", 8F);
			this.lstLines.ItemHeight = 14;
			this.lstLines.Location = new System.Drawing.Point(12, 44);
			this.lstLines.Size = new System.Drawing.Size(396, 214);
			this.lstLines.TabIndex = 3;
			this.btnOpen.Anchor = (System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right);
			this.btnOpen.Location = new System.Drawing.Point(416, 44);
			this.btnOpen.TabIndex = 5;
			this.btnOpen.Text = "Abrir";
			this.btnOpen.Click += new System.EventHandler(this.btnOpen_Click);
			this.btnExit.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right);
			this.btnExit.Location = new System.Drawing.Point(416, 236);
			this.btnExit.Size = new System.Drawing.Size(75, 24);
			this.btnExit.TabIndex = 4;
			this.btnExit.Text = "Salir";
			this.btnExit.Click += new System.EventHandler(this.btnExit_Click);
			this.label1.Location = new System.Drawing.Point(16, 16);
			this.label1.Size = new System.Drawing.Size(60, 16);
			this.label1.TabIndex = 0;
			this.label1.Text = "Fichero:";
			this.btnBrowse.Anchor = (System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right);
			this.btnBrowse.Location = new System.Drawing.Point(416, 8);
			this.btnBrowse.Size = new System.Drawing.Size(75, 24);
			this.btnBrowse.TabIndex = 2;
			this.btnBrowse.Text = "Examinar...";
			this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);
			this.txtFileName.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
				| System.Windows.Forms.AnchorStyles.Right);
			this.txtFileName.Location = new System.Drawing.Point(80, 12);
			this.txtFileName.Size = new System.Drawing.Size(328, 20);
			this.txtFileName.TabIndex = 1;
			this.txtFileName.Text = "textBox1";
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(503, 276);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {this.btnOpen,
																		  this.btnExit,
																		  this.lstLines,
																		  this.btnBrowse,
																		  this.txtFileName,
																		  this.label1});
			this.Text = "Form1";

		}
		#endregion

		/// <summary>
		/// 	The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main()
		{
			Application.Run(new Form1());
		}

		private void btnExit_Click(object sender, System.EventArgs e)
		{
			// Terminar el programa
			this.Close();
		}

		private void btnBrowse_Click(object sender, System.EventArgs e)
		{
			// Seleccionar el fichero a abrir
			openFD.Filter = "Todos los ficheros (*.*)|*.*|Ficheros de texto (*.txt)|*.txt";
			if(openFD.ShowDialog() == DialogResult.OK)
				this.txtFileName.Text = openFD.FileName;
		}

		private void btnOpen_Click(object sender, System.EventArgs e)
		{
			// Abrir el fichero indicado en al caja de texto
			String FileName = txtFileName.Text;
			// Comprobar si existe
			if(System.IO.File.Exists(FileName))
			{
				this.lstLines.Items.Clear();
				System.IO.StreamReader sr = new System.IO.StreamReader(FileName,System.Text.Encoding.Default);
				while(!(sr.Peek()==-1))
				{
					this.lstLines.Items.Add(sr.ReadLine());
				}
				sr.Close();
			}
		}
	}
}

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