Creando una caja de entrada en C# usando formularios

Question

Hola, actualmente estoy creando una aplicación que tiene la necesidad de agregarle direcciones IP de servidor, ya que no hay función InputBox en C# Estoy intentando completar esto usando formularios, pero estoy muy nuevo en el lenguaje, así que no 100% en cuanto a lo que debería hacer.

Por el momento tengo mi formulario principal y un formulario que actuará como mi inputbox que quiere ocultar en la carga. Luego, cuando el usuario haga clic en Agregar dirección IP en el formulario principal, deseo abrir el formulario secundario y devolver la dirección IP ingresada en un cuadro de texto en el formulario secundario.

Entonces, ¿cómo voy a hacer esto? ¿O hay alguna forma mejor de lograr resultados similares?

Answer 1

En su forma principal, agregue un controlador de eventos para el evento Haga clic del botón Agregar dirección IP. En el controlador de eventos, hacer algo similar como el código de abajo:

private string m_ipAddress; 
private void OnAddIPAddressClicked(object sender, EventArgs e) 
{ 
    using(SetIPAddressForm form = new SetIPAddressForm()) 
    { 
     if (form.ShowDialog() == DialogResult.OK) 
     { 
      //Create a property in SetIPAddressForm to return the input of user. 
      m_ipAddress = form.IPAddress; 
     } 
    } 
} 

Editar: Añadir otro ejemplo de encajar con manemawanna comentario.

private void btnAddServer_Click(object sender, EventArgs e) 
{ 
    string ipAdd; 
    using(Input form = new Input()) 
    { 
     if (form.ShowDialog() == DialogResult.OK) 
     { 
      //Create a property in SetIPAddressForm to return the input of user. 
      ipAdd = form.IPAddress; 
     } 
    } 
} 

En su formulario de entrada, agregue una propiedad:

public class Input : Form 
{ 
    public string IPAddress 
    { 
     get { return txtInput.Text; } 
    } 

    private void btnInput_Click(object sender, EventArgs e) 
    { 
     //Do some validation for the text in txtInput to be sure the ip is well-formated. 

     if(ip_well_formated) 
     { 
      this.DialogResult = DialogResult.OK; 
      this.Close(); 
     } 
    } 
} 

Answer 2

Agregue un botón en el formulario principal.

Cree un formulario con cuadro de texto para dirección IP. (digamos IPAddressForm)

Agregue el controlador de eventos de clic para ese botón.

En el controlador de eventos, cree una instancia de IPAddressForm y llame al método showdialog de IPAddressForm.

Almacena la dirección IP en alguna variable de clase.

Si el resultado ShowDialog está bien, lee la variable de clase de la forma principal (forma más sencilla consiste en declarar el campo como pública)

Answer 3

Parece que Francisco tiene la idea correcta que es lo que habría sugerido. Sin embargo, solo para agregar a esto, probablemente sugeriría usar MaskedTextBox en lugar de un TextBox básico y agregar el formato de la dirección IP como la Máscara.

Answer 4

Se podía utilizar la VB InputBox ...

1. Añadir referencia a Microsoft.VisualBasic
2. resultado = Microsoft.VisualBasic.Interaction.InputBox ("Título", "texto", "cadena" , 10, 20);

Answer 5

He necesitado esta función también. Aquí está mi código; se autocentra y dimensiona para ajustarse al prompt. El método público crea un diálogo y devuelve la entrada del usuario, o null si cancelan.

using System; 
using System.Drawing; 
using System.Windows.Forms; 

namespace Utilities 
{ 
public class InputBox 
    { 
    #region Interface 
    public static string ShowDialog(string prompt, string title, string defaultValue = null, int? xPos = null, int? yPos = null) 
     { 
     InputBoxDialog form = new InputBoxDialog(prompt, title, defaultValue, xPos, yPos); 
     DialogResult result = form.ShowDialog(); 
     if (result == DialogResult.Cancel) 
      return null; 
     else 
      return form.Value; 
     } 
    #endregion 

    #region Auxiliary class 
    private class InputBoxDialog: Form 
     { 
     public string Value { get { return _txtInput.Text; } } 

     private Label _lblPrompt; 
     private TextBox _txtInput; 
     private Button _btnOk; 
     private Button _btnCancel; 

     #region Constructor 
     public InputBoxDialog(string prompt, string title, string defaultValue = null, int? xPos = null, int? yPos = null) 
      { 
      if (xPos == null && yPos == null) 
       { 
       StartPosition = FormStartPosition.CenterParent; 
       } 
      else 
       { 
       StartPosition = FormStartPosition.Manual; 

       if (xPos == null) xPos = (Screen.PrimaryScreen.WorkingArea.Width - Width) >> 1; 
       if (yPos == null) yPos = (Screen.PrimaryScreen.WorkingArea.Height - Height) >> 1; 

       Location = new Point(xPos.Value, yPos.Value); 
       } 

      InitializeComponent(); 

      if (title == null) title = Application.ProductName; 
      Text = title; 

      _lblPrompt.Text = prompt; 
      Graphics graphics = CreateGraphics(); 
      _lblPrompt.Size = graphics.MeasureString(prompt, _lblPrompt.Font).ToSize(); 
      int promptWidth = _lblPrompt.Size.Width; 
      int promptHeight = _lblPrompt.Size.Height; 

      _txtInput.Location = new Point(8, 30 + promptHeight); 
      int inputWidth = promptWidth < 206 ? 206 : promptWidth; 
      _txtInput.Size  = new Size(inputWidth, 21); 
      _txtInput.Text  = defaultValue; 
      _txtInput.SelectAll(); 
      _txtInput.Focus(); 

      Height = 125 + promptHeight; 
      Width = inputWidth + 23; 

      _btnOk.Location = new Point(8, 60 + promptHeight); 
      _btnOk.Size  = new Size(100, 26); 

      _btnCancel.Location = new Point(114, 60 + promptHeight); 
      _btnCancel.Size  = new Size(100, 26); 

      return; 
      } 
     #endregion 

     #region Methods 
     protected void InitializeComponent() 
      { 
      _lblPrompt   = new Label(); 
      _lblPrompt.Location = new Point(12, 9); 
      _lblPrompt.TabIndex = 0; 
      _lblPrompt.BackColor = Color.Transparent; 

      _txtInput   = new TextBox(); 
      _txtInput.Size  = new Size(156, 20); 
      _txtInput.TabIndex = 1; 

      _btnOk    = new Button(); 
      _btnOk.TabIndex  = 2; 
      _btnOk.Size   = new Size(75, 26); 
      _btnOk.Text   = "&OK"; 
      _btnOk.DialogResult = DialogResult.OK; 

      _btnCancel    = new Button(); 
      _btnCancel.TabIndex  = 3; 
      _btnCancel.Size   = new Size(75, 26); 
      _btnCancel.Text   = "&Cancel"; 
      _btnCancel.DialogResult = DialogResult.Cancel; 

      AcceptButton = _btnOk; 
      CancelButton = _btnCancel; 

      Controls.Add(_lblPrompt); 
      Controls.Add(_txtInput); 
      Controls.Add(_btnOk); 
      Controls.Add(_btnCancel); 

      FormBorderStyle = FormBorderStyle.FixedDialog; 
      MaximizeBox = false; 
      MinimizeBox = false; 

      return; 
      } 
     #endregion 
     } 
    #endregion 
    } 
} 

Answer 6

Puede crear su cuadro de mensaje especial. Creé mi messagebox para obtener información de la base de datos como a continuación. Y cuando se abre el cuadro de mensaje, la aplicación se detiene durante la pulsación de cualquier botón en el cuadro de mensaje relacionado.

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

namespace Palmaris_Installation 
{ 
    public class efexBox 
    { 
     public static string ShowDialog() 
     { 
      PopUpDatabase form = new PopUpDatabase(); 
      DialogResult result = form.ShowDialog(); 
      if (result == DialogResult.Cancel) 
       return null; 
      else 
      { 
       if (form.ValueAuthentication == "SQL Server Authentication") 
       return form.Valueservername + "?" + form.ValueAuthentication + "?" + form.ValueUsername + "?" + form.ValuePassword; 
       else 
        return form.Valueservername + "?" + form.ValueAuthentication + "?" + "" + "?" + ""; 
      } 
     } 

     public partial class PopUpDatabase : Form 
     { 
      public PopUpDatabase() 
      { 
       InitializeComponent(); 

       SqlDataSourceEnumerator instance = SqlDataSourceEnumerator.Instance; 
       DataTable table = instance.GetDataSources(); 

       foreach (DataRow row in table.Rows) 
       { 
        cmbServerName.Items.Add(row[0] + "\\" + row[1]); 
       } 
       cmbAuthentication.Items.Add("Windows Authentication"); 
       cmbAuthentication.Items.Add("SQL Server Authentication"); 
       return; 
      } 

      private void InitializeComponent() 
      { 
       this.groupBox1 = new System.Windows.Forms.GroupBox(); 
       this.label1 = new System.Windows.Forms.Label(); 
       this.label2 = new System.Windows.Forms.Label(); 
       this.label3 = new System.Windows.Forms.Label(); 
       this.label4 = new System.Windows.Forms.Label(); 
       this.cmbServerName = new System.Windows.Forms.ComboBox(); 
       this.cmbAuthentication = new System.Windows.Forms.ComboBox(); 
       this.txtUserName = new System.Windows.Forms.TextBox(); 
       this.txtPassword = new System.Windows.Forms.TextBox(); 
       this.btnCancel = new System.Windows.Forms.Button(); 
       this.btnConnect = new System.Windows.Forms.Button(); 
       this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow; 
       this.MaximizeBox = false; 
       this.groupBox1.SuspendLayout(); 
       this.SuspendLayout(); 

       // 
       // groupBox1 
       // 
       this.groupBox1.Controls.Add(this.btnConnect); 
       this.groupBox1.Controls.Add(this.btnCancel); 
       this.groupBox1.Controls.Add(this.txtPassword); 
       this.groupBox1.Controls.Add(this.txtUserName); 
       this.groupBox1.Controls.Add(this.cmbAuthentication); 
       this.groupBox1.Controls.Add(this.cmbServerName); 
       this.groupBox1.Controls.Add(this.label4); 
       this.groupBox1.Controls.Add(this.label3); 
       this.groupBox1.Controls.Add(this.label2); 
       this.groupBox1.Controls.Add(this.label1); 
       this.groupBox1.Dock = System.Windows.Forms.DockStyle.Fill; 
       this.groupBox1.Location = new System.Drawing.Point(0, 0); 
       this.groupBox1.Name = "groupBox1"; 
       this.groupBox1.Size = new System.Drawing.Size(348, 198); 
       this.groupBox1.TabIndex = 0; 
       this.groupBox1.TabStop = false; 
       this.groupBox1.Text = "Database Configration"; 
       this.groupBox1.BackColor = Color.Gray; 
       // 
       // label1 
       // 
       this.label1.AutoSize = true; 
       this.label1.Location = new System.Drawing.Point(50, 46); 
       this.label1.Name = "label1"; 
       this.label1.Size = new System.Drawing.Size(69, 13); 
       this.label1.TabIndex = 0; 
       this.label1.Text = "Server Name"; 
       // 
       // label2 
       // 
       this.label2.AutoSize = true; 
       this.label2.Location = new System.Drawing.Point(50, 73); 
       this.label2.Name = "label2"; 
       this.label2.Size = new System.Drawing.Size(75, 13); 
       this.label2.TabIndex = 0; 
       this.label2.Text = "Authentication"; 
       // 
       // label3 
       // 
       this.label3.AutoSize = true; 
       this.label3.Location = new System.Drawing.Point(50, 101); 
       this.label3.Name = "label3"; 
       this.label3.Size = new System.Drawing.Size(60, 13); 
       this.label3.TabIndex = 0; 
       this.label3.Text = "User Name"; 
       // 
       // label4 
       // 
       this.label4.AutoSize = true; 
       this.label4.Location = new System.Drawing.Point(50, 127); 
       this.label4.Name = "label4"; 
       this.label4.Size = new System.Drawing.Size(53, 13); 
       this.label4.TabIndex = 0; 
       this.label4.Text = "Password"; 
       // 
       // cmbServerName 
       // 
       this.cmbServerName.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; 
       this.cmbServerName.FormattingEnabled = true; 
       this.cmbServerName.Location = new System.Drawing.Point(140, 43); 
       this.cmbServerName.Name = "cmbServerName"; 
       this.cmbServerName.Size = new System.Drawing.Size(185, 21); 
       this.cmbServerName.TabIndex = 1; 
       // 
       // cmbAuthentication 
       // 
       this.cmbAuthentication.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; 
       this.cmbAuthentication.FormattingEnabled = true; 
       this.cmbAuthentication.Location = new System.Drawing.Point(140, 70); 
       this.cmbAuthentication.Name = "cmbAuthentication"; 
       this.cmbAuthentication.Size = new System.Drawing.Size(185, 21); 
       this.cmbAuthentication.TabIndex = 1; 
       this.cmbAuthentication.SelectedIndexChanged += new System.EventHandler(this.cmbAuthentication_SelectedIndexChanged); 
       // 
       // txtUserName 
       // 
       this.txtUserName.Location = new System.Drawing.Point(140, 98); 
       this.txtUserName.Name = "txtUserName"; 
       this.txtUserName.Size = new System.Drawing.Size(185, 20); 
       this.txtUserName.TabIndex = 2; 
       // 
       // txtPassword 
       // 
       this.txtPassword.Location = new System.Drawing.Point(140, 124); 
       this.txtPassword.Name = "txtPassword"; 
       this.txtPassword.Size = new System.Drawing.Size(185, 20); 
       this.txtPassword.TabIndex = 2; 
       // 
       // btnCancel 
       // 
       this.btnCancel.Location = new System.Drawing.Point(250, 163); 
       this.btnCancel.Name = "btnCancel"; 
       this.btnCancel.Size = new System.Drawing.Size(75, 23); 
       this.btnCancel.TabIndex = 3; 
       this.btnCancel.Text = "Cancel"; 
       this.btnCancel.UseVisualStyleBackColor = true; 
       this.btnCancel.DialogResult = DialogResult.Cancel; 
       // 
       // btnConnect 
       // 
       this.btnConnect.Location = new System.Drawing.Point(140, 163); 
       this.btnConnect.Name = "btnConnect"; 
       this.btnConnect.Size = new System.Drawing.Size(75, 23); 
       this.btnConnect.TabIndex = 3; 
       this.btnConnect.Text = "Connect"; 
       this.btnConnect.UseVisualStyleBackColor = true; 
       this.btnConnect.DialogResult = DialogResult.OK; 
       // 
       // PopUpDatabase 
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
       this.ClientSize = new System.Drawing.Size(348, 198); 
       this.Controls.Add(this.groupBox1); 
       this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle; 
       this.Name = "PopUpDatabase"; 
       this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; 
       this.Text = "::: Database Configration :::"; 
       this.groupBox1.ResumeLayout(false); 
       this.groupBox1.PerformLayout(); 
       this.ResumeLayout(false); 

      } 

      private System.Windows.Forms.GroupBox groupBox1; 
      private System.Windows.Forms.Label label4; 
      private System.Windows.Forms.Label label3; 
      private System.Windows.Forms.Label label2; 
      private System.Windows.Forms.Label label1; 
      private System.Windows.Forms.TextBox txtPassword; 
      private System.Windows.Forms.TextBox txtUserName; 
      private System.Windows.Forms.ComboBox cmbAuthentication; 
      private System.Windows.Forms.ComboBox cmbServerName; 
      private System.Windows.Forms.Button btnConnect; 
      private System.Windows.Forms.Button btnCancel; 

      public string ValueUsername { get { return txtUserName.Text; } } 
      public string ValuePassword { get { return txtPassword.Text; } } 
      public string Valueservername { get { return cmbServerName.SelectedItem.ToString(); } } 
      public string ValueAuthentication { get { return cmbAuthentication.SelectedItem.ToString(); } } 

      private void cmbAuthentication_SelectedIndexChanged(object sender, EventArgs e) 
      { 
       if (cmbAuthentication.SelectedIndex == 1) 
       { 
        txtUserName.Enabled = true; 
        txtPassword.Enabled = true; 
       } 
       else 
       { 
        txtUserName.Enabled = false; 
        txtPassword.Enabled = false; 
       } 
      } 
     } 
    } 
} 

y en su llamada principal aplicación como:

string[] strPopUp = efexBox.ShowDialog().Split('?');